From ca69ad14a7933074d7119c231ca31af84082e8f2 Mon Sep 17 00:00:00 2001
From: kkira <kira.n.neit@gmail.com>
Date: Wed, 17 Jun 2026 23:31:44 +0300
Subject: [PATCH] =?UTF-8?q?=D0=9D=D0=B0=D1=81=D1=82=D1=80=D0=BE=D0=B9?=
 =?UTF-8?q?=D0=BA=D0=B0=20=D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=B0=20STM?=
 =?UTF-8?q?32=20=D1=81=20=D0=BF=D0=BE=D0=B4=D0=B4=D0=B5=D1=80=D0=B6=D0=BA?=
 =?UTF-8?q?=D0=BE=D0=B9=20FreeRTOS,=20CAN,=20FATFS=20=D0=B8=20C++?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 STM32_CO2_NODE/.cproject                 | 34 ++++-----
 STM32_CO2_NODE/.mxproject                | 16 ++---
 STM32_CO2_NODE/App/Task/co2_task.cpp     |  3 +
 STM32_CO2_NODE/Core/Inc/co2_data.hpp     |  9 +++
 STM32_CO2_NODE/Core/Src/freertos.c       | 90 +++++++++++++++++-------
 STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.cpp |  5 ++
 STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.hpp |  7 ++
 STM32_CO2_NODE/STM32_CO2_NODE.ioc        |  2 +-
 8 files changed, 113 insertions(+), 53 deletions(-)
 create mode 100644 STM32_CO2_NODE/App/Task/co2_task.cpp
 create mode 100644 STM32_CO2_NODE/Core/Inc/co2_data.hpp
 create mode 100644 STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.cpp
 create mode 100644 STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.hpp

diff --git a/STM32_CO2_NODE/.cproject b/STM32_CO2_NODE/.cproject
index 42e1501..ea94668 100644
--- a/STM32_CO2_NODE/.cproject
+++ b/STM32_CO2_NODE/.cproject
@@ -22,7 +22,7 @@
 							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_coreid.667799782" name="Core" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_coreid" useByScannerDiscovery="false" value="0" valueType="string"/>
 							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_board.314308290" name="Board" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_board" useByScannerDiscovery="false" value="genericBoard" valueType="string"/>
 							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.defaults.1109420748" name="Defaults" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.defaults" useByScannerDiscovery="false" value="com.st.stm32cube.ide.common.services.build.inputs.revA.1.0.6 || Debug || true || Executable || com.st.stm32cube.ide.mcu.gnu.managedbuild.option.toolchain.value.workspace || STM32F103C8Tx || 0 || 0 || arm-none-eabi- || ${gnu_tools_for_stm32_compiler_path} || ../Core/Inc | ../FATFS/Target | ../FATFS/App | ../Drivers/STM32F1xx_HAL_Driver/Inc | ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy | ../Middlewares/Third_Party/FreeRTOS/Source/include | ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 | ../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3 | ../Middlewares/Third_Party/FatFs/src | ../Drivers/CMSIS/Device/ST/STM32F1xx/Include | ../Drivers/CMSIS/Include || ../Core/Inc | ../FATFS/Target | ../FATFS/App | ../Drivers/STM32F1xx_HAL_Driver/Inc | ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy | ../Middlewares/Third_Party/FreeRTOS/Source/include | ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 | ../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3 | ../Middlewares/Third_Party/FatFs/src | ../Drivers/CMSIS/Device/ST/STM32F1xx/Include | ../Drivers/CMSIS/Include ||  || USE_HAL_DRIVER | STM32F103xB ||  || Drivers | Core/Startup | Middlewares | Core | FATFS ||  ||  || ${workspace_loc:/${ProjName}/STM32F103C8TX_FLASH.ld} || true || NonSecure ||  || secure_nsclib.o ||  || None ||  ||  || " valueType="string"/>
-							<option id="com.st.stm32cube.ide.mcu.debug.option.cpuclock.2134544980" superClass="com.st.stm32cube.ide.mcu.debug.option.cpuclock" useByScannerDiscovery="false" value="8" valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.debug.option.cpuclock.2134544980" name="Cpu clock frequence" superClass="com.st.stm32cube.ide.mcu.debug.option.cpuclock" useByScannerDiscovery="false" value="8" valueType="string"/>
 							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.targetplatform.893147837" isAbstract="false" osList="all" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.targetplatform"/>
 							<builder buildPath="${workspace_loc:/STM32_CO2_NODE}/Debug" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder.1113332696" keepEnvironmentInBuildfile="false" managedBuildOn="true" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder"/>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.713663226" name="MCU/MPU GCC Assembler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler">
@@ -116,17 +116,17 @@
 				<configuration artifactExtension="elf" artifactName="${ProjName}" buildArtefactType="org.eclipse.cdt.build.core.buildArtefactType.exe" buildProperties="org.eclipse.cdt.build.core.buildArtefactType=org.eclipse.cdt.build.core.buildArtefactType.exe,org.eclipse.cdt.build.core.buildType=org.eclipse.cdt.build.core.buildType.release" cleanCommand="rm -rf" description="" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.config.exe.release.1935701793" name="Release" parent="com.st.stm32cube.ide.mcu.gnu.managedbuild.config.exe.release">
 					<folderInfo id="com.st.stm32cube.ide.mcu.gnu.managedbuild.config.exe.release.1935701793." name="/" resourcePath="">
 						<toolChain id="com.st.stm32cube.ide.mcu.gnu.managedbuild.toolchain.exe.release.1937818641" name="MCU ARM GCC" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.toolchain.exe.release">
-							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_mcu.54294856" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_mcu" useByScannerDiscovery="true" value="STM32F103C8Tx" valueType="string"/>
-							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_cpuid.1462621289" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_cpuid" useByScannerDiscovery="false" value="0" valueType="string"/>
-							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_coreid.434701227" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_coreid" useByScannerDiscovery="false" value="0" valueType="string"/>
-							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_board.6661806" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_board" useByScannerDiscovery="false" value="genericBoard" valueType="string"/>
-							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.defaults.208116071" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.defaults" useByScannerDiscovery="false" value="com.st.stm32cube.ide.common.services.build.inputs.revA.1.0.6 || Release || false || Executable || com.st.stm32cube.ide.mcu.gnu.managedbuild.option.toolchain.value.workspace || STM32F103C8Tx || 0 || 0 || arm-none-eabi- || ${gnu_tools_for_stm32_compiler_path} || ../Core/Inc | ../FATFS/Target | ../FATFS/App | ../Drivers/STM32F1xx_HAL_Driver/Inc | ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy | ../Middlewares/Third_Party/FreeRTOS/Source/include | ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 | ../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3 | ../Middlewares/Third_Party/FatFs/src | ../Drivers/CMSIS/Device/ST/STM32F1xx/Include | ../Drivers/CMSIS/Include || ../Core/Inc | ../FATFS/Target | ../FATFS/App | ../Drivers/STM32F1xx_HAL_Driver/Inc | ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy | ../Middlewares/Third_Party/FreeRTOS/Source/include | ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 | ../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3 | ../Middlewares/Third_Party/FatFs/src | ../Drivers/CMSIS/Device/ST/STM32F1xx/Include | ../Drivers/CMSIS/Include ||  || USE_HAL_DRIVER | STM32F103xB ||  || Drivers | Core/Startup | Middlewares | Core | FATFS ||  ||  || ${workspace_loc:/${ProjName}/STM32F103C8TX_FLASH.ld} || true || NonSecure ||  || secure_nsclib.o ||  || None ||  ||  || " valueType="string"/>
-							<option id="com.st.stm32cube.ide.mcu.debug.option.cpuclock.1125466739" superClass="com.st.stm32cube.ide.mcu.debug.option.cpuclock" value="8" valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_mcu.54294856" name="MCU" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_mcu" useByScannerDiscovery="true" value="STM32F103C8Tx" valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_cpuid.1462621289" name="CPU" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_cpuid" useByScannerDiscovery="false" value="0" valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_coreid.434701227" name="Core" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_coreid" useByScannerDiscovery="false" value="0" valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_board.6661806" name="Board" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.target_board" useByScannerDiscovery="false" value="genericBoard" valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.defaults.208116071" name="Defaults" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.defaults" useByScannerDiscovery="false" value="com.st.stm32cube.ide.common.services.build.inputs.revA.1.0.6 || Release || false || Executable || com.st.stm32cube.ide.mcu.gnu.managedbuild.option.toolchain.value.workspace || STM32F103C8Tx || 0 || 0 || arm-none-eabi- || ${gnu_tools_for_stm32_compiler_path} || ../Core/Inc | ../FATFS/Target | ../FATFS/App | ../Drivers/STM32F1xx_HAL_Driver/Inc | ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy | ../Middlewares/Third_Party/FreeRTOS/Source/include | ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 | ../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3 | ../Middlewares/Third_Party/FatFs/src | ../Drivers/CMSIS/Device/ST/STM32F1xx/Include | ../Drivers/CMSIS/Include || ../Core/Inc | ../FATFS/Target | ../FATFS/App | ../Drivers/STM32F1xx_HAL_Driver/Inc | ../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy | ../Middlewares/Third_Party/FreeRTOS/Source/include | ../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2 | ../Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3 | ../Middlewares/Third_Party/FatFs/src | ../Drivers/CMSIS/Device/ST/STM32F1xx/Include | ../Drivers/CMSIS/Include ||  || USE_HAL_DRIVER | STM32F103xB ||  || Drivers | Core/Startup | Middlewares | Core | FATFS ||  ||  || ${workspace_loc:/${ProjName}/STM32F103C8TX_FLASH.ld} || true || NonSecure ||  || secure_nsclib.o ||  || None ||  ||  || " valueType="string"/>
+							<option id="com.st.stm32cube.ide.mcu.debug.option.cpuclock.1125466739" name="Cpu clock frequence" superClass="com.st.stm32cube.ide.mcu.debug.option.cpuclock" useByScannerDiscovery="false" value="8" valueType="string"/>
 							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.targetplatform.1861476882" isAbstract="false" osList="all" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.targetplatform"/>
-							<builder buildPath="${workspace_loc:/STM32_CO2_NODE}/Release" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder.662533412" managedBuildOn="true" name="Gnu Make Builder.Release" parallelBuildOn="true" parallelizationNumber="optimal" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder"/>
+							<builder buildPath="${workspace_loc:/STM32_CO2_NODE}/Release" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder.662533412" keepEnvironmentInBuildfile="false" managedBuildOn="true" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder"/>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.231340640" name="MCU/MPU GCC Assembler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler">
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.debuglevel.565274666" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.debuglevel" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.debuglevel.value.g0" valueType="enumerated"/>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.includepaths.1967421849" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.includepaths" valueType="includePath">
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.debuglevel.565274666" name="Debug level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.debuglevel" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.debuglevel.value.g0" valueType="enumerated"/>
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.includepaths.1967421849" name="Include paths (-I)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.option.includepaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="../Core/Inc"/>
 									<listOptionValue builtIn="false" value="../FATFS/Target"/>
 									<listOptionValue builtIn="false" value="../FATFS/App"/>
@@ -142,13 +142,13 @@
 								<inputType id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.input.1568446066" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.input"/>
 							</tool>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.33137376" name="MCU/MPU GCC Compiler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler">
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.196605233" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.value.g0" valueType="enumerated"/>
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.2029105778" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.value.os" valueType="enumerated"/>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols.51211131" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols" useByScannerDiscovery="false" valueType="definedSymbols">
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.196605233" name="Debug level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.value.g0" valueType="enumerated"/>
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.2029105778" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.value.os" valueType="enumerated"/>
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols.51211131" name="Define symbols (-D)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols" useByScannerDiscovery="false" valueType="definedSymbols">
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
 									<listOptionValue builtIn="false" value="STM32F103xB"/>
 								</option>
-								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.includepaths.836336548" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.includepaths" useByScannerDiscovery="false" valueType="includePath">
+								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.includepaths.836336548" name="Include paths (-I)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.includepaths" useByScannerDiscovery="false" valueType="includePath">
 									<listOptionValue builtIn="false" value="../Core/Inc"/>
 									<listOptionValue builtIn="false" value="../FATFS/Target"/>
 									<listOptionValue builtIn="false" value="../FATFS/App"/>
@@ -164,11 +164,11 @@
 								<inputType id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.input.c.1480058293" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.input.c"/>
 							</tool>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.1548389857" name="MCU/MPU G++ Compiler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler">
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.debuglevel.1716158339" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.debuglevel" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.debuglevel.value.g0" valueType="enumerated"/>
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.optimization.level.276803945" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.optimization.level" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.optimization.level.value.os" valueType="enumerated"/>
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.debuglevel.1716158339" name="Debug level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.debuglevel" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.debuglevel.value.g0" valueType="enumerated"/>
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.optimization.level.276803945" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.optimization.level" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.cpp.compiler.option.optimization.level.value.os" valueType="enumerated"/>
 							</tool>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.1011350901" name="MCU/MPU GCC Linker" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker">
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.script.1281313672" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.script" value="${workspace_loc:/${ProjName}/STM32F103C8TX_FLASH.ld}" valueType="string"/>
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.script.1281313672" name="Linker Script (-T)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.option.script" value="${workspace_loc:/${ProjName}/STM32F103C8TX_FLASH.ld}" valueType="string"/>
 								<inputType id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.input.1779967444" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.linker.input">
 									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
 									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
diff --git a/STM32_CO2_NODE/.mxproject b/STM32_CO2_NODE/.mxproject
index 749148e..025ddfe 100644
--- a/STM32_CO2_NODE/.mxproject
+++ b/STM32_CO2_NODE/.mxproject
@@ -1,3 +1,11 @@
+[PreviousLibFiles]
+LibFiles=Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_can.h;Drivers\STM32F1xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_def.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_bus.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_system.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_utils.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio_ex.h;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_uart.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_usart.h;Middlewares\Third_Party\FreeRTOS\Source\include\croutine.h;Middlewares\Third_Party\FreeRTOS\Source\include\deprecated_definitions.h;Middlewares\Third_Party\FreeRTOS\Source\include\event_groups.h;Middlewares\Third_Party\FreeRTOS\Source\include\FreeRTOS.h;Middlewares\Third_Party\FreeRTOS\Source\include\list.h;Middlewares\Third_Party\FreeRTOS\Source\include\message_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_prototypes.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_wrappers.h;Middlewares\Third_Party\FreeRTOS\Source\include\portable.h;Middlewares\Third_Party\FreeRTOS\Source\include\projdefs.h;Middlewares\Third_Party\FreeRTOS\Source\include\queue.h;Middlewares\Third_Party\FreeRTOS\Source\include\semphr.h;Middlewares\Third_Party\FreeRTOS\Source\include\stack_macros.h;Middlewares\Third_Party\FreeRTOS\Source\include\StackMacros.h;Middlewares\Third_Party\FreeRTOS\Source\include\stream_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\task.h;Middlewares\Third_Party\FreeRTOS\Source\include\timers.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_mpool.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_os2.h;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\portmacro.h;Middlewares\Third_Party\FatFs\src\diskio.h;Middlewares\Third_Party\FatFs\src\ff.h;Middlewares\Third_Party\FatFs\src\ff_gen_drv.h;Middlewares\Third_Party\FatFs\src\integer.h;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_can.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_can.h;Drivers\STM32F1xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_def.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_bus.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_system.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_utils.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio_ex.h;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_uart.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_usart.h;Middlewares\Third_Party\FreeRTOS\Source\include\croutine.h;Middlewares\Third_Party\FreeRTOS\Source\include\deprecated_definitions.h;Middlewares\Third_Party\FreeRTOS\Source\include\event_groups.h;Middlewares\Third_Party\FreeRTOS\Source\include\FreeRTOS.h;Middlewares\Third_Party\FreeRTOS\Source\include\list.h;Middlewares\Third_Party\FreeRTOS\Source\include\message_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_prototypes.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_wrappers.h;Middlewares\Third_Party\FreeRTOS\Source\include\portable.h;Middlewares\Third_Party\FreeRTOS\Source\include\projdefs.h;Middlewares\Third_Party\FreeRTOS\Source\include\queue.h;Middlewares\Third_Party\FreeRTOS\Source\include\semphr.h;Middlewares\Third_Party\FreeRTOS\Source\include\stack_macros.h;Middlewares\Third_Party\FreeRTOS\Source\include\StackMacros.h;Middlewares\Third_Party\FreeRTOS\Source\include\stream_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\task.h;Middlewares\Third_Party\FreeRTOS\Source\include\timers.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_mpool.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_os2.h;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\portmacro.h;Middlewares\Third_Party\FatFs\src\diskio.h;Middlewares\Third_Party\FatFs\src\ff.h;Middlewares\Third_Party\FatFs\src\ff_gen_drv.h;Middlewares\Third_Party\FatFs\src\integer.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\stm32f103xb.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\stm32f1xx.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\system_stm32f1xx.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\system_stm32f1xx.h;Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;Drivers\CMSIS\Include\cmsis_armcc.h;Drivers\CMSIS\Include\cmsis_armclang.h;Drivers\CMSIS\Include\cmsis_compiler.h;Drivers\CMSIS\Include\cmsis_gcc.h;Drivers\CMSIS\Include\cmsis_iccarm.h;Drivers\CMSIS\Include\cmsis_version.h;Drivers\CMSIS\Include\core_armv8mbl.h;Drivers\CMSIS\Include\core_armv8mml.h;Drivers\CMSIS\Include\core_cm0.h;Drivers\CMSIS\Include\core_cm0plus.h;Drivers\CMSIS\Include\core_cm1.h;Drivers\CMSIS\Include\core_cm23.h;Drivers\CMSIS\Include\core_cm3.h;Drivers\CMSIS\Include\core_cm33.h;Drivers\CMSIS\Include\core_cm4.h;Drivers\CMSIS\Include\core_cm7.h;Drivers\CMSIS\Include\core_sc000.h;Drivers\CMSIS\Include\core_sc300.h;Drivers\CMSIS\Include\mpu_armv7.h;Drivers\CMSIS\Include\mpu_armv8.h;Drivers\CMSIS\Include\tz_context.h;
+
+[PreviousUsedCubeIDEFiles]
+SourceFiles=Core\Src\main.c;Core\Src\gpio.c;Core\Src\freertos.c;Core\Src\can.c;Core\Src\dma.c;FATFS\Target\user_diskio.c;FATFS\App\fatfs.c;Core\Src\spi.c;Core\Src\usart.c;Core\Src\stm32f1xx_it.c;Core\Src\stm32f1xx_hal_msp.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_can.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;Core\Src\system_stm32f1xx.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_can.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;Core\Src\system_stm32f1xx.c;;;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;
+HeaderPath=Drivers\STM32F1xx_HAL_Driver\Inc;Drivers\STM32F1xx_HAL_Driver\Inc\Legacy;Middlewares\Third_Party\FreeRTOS\Source\include;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3;Middlewares\Third_Party\FatFs\src;Drivers\CMSIS\Device\ST\STM32F1xx\Include;Drivers\CMSIS\Include;Core\Inc;FATFS\Target;FATFS\App;
+CDefines=USE_HAL_DRIVER;STM32F103xB;USE_HAL_DRIVER;USE_HAL_DRIVER;
+
 [PreviousGenFiles]
 AdvancedFolderStructure=true
 HeaderFileListSize=12
@@ -36,11 +44,3 @@ SourcePath#1=..\FATFS\Target
 SourcePath#2=..\FATFS\App
 SourceFiles=;
 
-[PreviousLibFiles]
-LibFiles=Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_can.h;Drivers\STM32F1xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_def.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_bus.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_system.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_utils.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio_ex.h;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_uart.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_usart.h;Middlewares\Third_Party\FreeRTOS\Source\include\croutine.h;Middlewares\Third_Party\FreeRTOS\Source\include\deprecated_definitions.h;Middlewares\Third_Party\FreeRTOS\Source\include\event_groups.h;Middlewares\Third_Party\FreeRTOS\Source\include\FreeRTOS.h;Middlewares\Third_Party\FreeRTOS\Source\include\list.h;Middlewares\Third_Party\FreeRTOS\Source\include\message_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_prototypes.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_wrappers.h;Middlewares\Third_Party\FreeRTOS\Source\include\portable.h;Middlewares\Third_Party\FreeRTOS\Source\include\projdefs.h;Middlewares\Third_Party\FreeRTOS\Source\include\queue.h;Middlewares\Third_Party\FreeRTOS\Source\include\semphr.h;Middlewares\Third_Party\FreeRTOS\Source\include\stack_macros.h;Middlewares\Third_Party\FreeRTOS\Source\include\StackMacros.h;Middlewares\Third_Party\FreeRTOS\Source\include\stream_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\task.h;Middlewares\Third_Party\FreeRTOS\Source\include\timers.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_mpool.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_os2.h;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\portmacro.h;Middlewares\Third_Party\FatFs\src\diskio.h;Middlewares\Third_Party\FatFs\src\ff.h;Middlewares\Third_Party\FatFs\src\ff_gen_drv.h;Middlewares\Third_Party\FatFs\src\integer.h;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_can.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_can.h;Drivers\STM32F1xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_def.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_bus.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_rcc.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_system.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_utils.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_gpio_ex.h;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_gpio.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_dma.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_cortex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_pwr.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_flash_ex.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_exti.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_spi.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_uart.h;Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_ll_usart.h;Middlewares\Third_Party\FreeRTOS\Source\include\croutine.h;Middlewares\Third_Party\FreeRTOS\Source\include\deprecated_definitions.h;Middlewares\Third_Party\FreeRTOS\Source\include\event_groups.h;Middlewares\Third_Party\FreeRTOS\Source\include\FreeRTOS.h;Middlewares\Third_Party\FreeRTOS\Source\include\list.h;Middlewares\Third_Party\FreeRTOS\Source\include\message_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_prototypes.h;Middlewares\Third_Party\FreeRTOS\Source\include\mpu_wrappers.h;Middlewares\Third_Party\FreeRTOS\Source\include\portable.h;Middlewares\Third_Party\FreeRTOS\Source\include\projdefs.h;Middlewares\Third_Party\FreeRTOS\Source\include\queue.h;Middlewares\Third_Party\FreeRTOS\Source\include\semphr.h;Middlewares\Third_Party\FreeRTOS\Source\include\stack_macros.h;Middlewares\Third_Party\FreeRTOS\Source\include\StackMacros.h;Middlewares\Third_Party\FreeRTOS\Source\include\stream_buffer.h;Middlewares\Third_Party\FreeRTOS\Source\include\task.h;Middlewares\Third_Party\FreeRTOS\Source\include\timers.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_mpool.h;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\freertos_os2.h;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\portmacro.h;Middlewares\Third_Party\FatFs\src\diskio.h;Middlewares\Third_Party\FatFs\src\ff.h;Middlewares\Third_Party\FatFs\src\ff_gen_drv.h;Middlewares\Third_Party\FatFs\src\integer.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\stm32f103xb.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\stm32f1xx.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\system_stm32f1xx.h;Drivers\CMSIS\Device\ST\STM32F1xx\Include\system_stm32f1xx.h;Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;Drivers\CMSIS\Include\cmsis_armcc.h;Drivers\CMSIS\Include\cmsis_armclang.h;Drivers\CMSIS\Include\cmsis_compiler.h;Drivers\CMSIS\Include\cmsis_gcc.h;Drivers\CMSIS\Include\cmsis_iccarm.h;Drivers\CMSIS\Include\cmsis_version.h;Drivers\CMSIS\Include\core_armv8mbl.h;Drivers\CMSIS\Include\core_armv8mml.h;Drivers\CMSIS\Include\core_cm0.h;Drivers\CMSIS\Include\core_cm0plus.h;Drivers\CMSIS\Include\core_cm1.h;Drivers\CMSIS\Include\core_cm23.h;Drivers\CMSIS\Include\core_cm3.h;Drivers\CMSIS\Include\core_cm33.h;Drivers\CMSIS\Include\core_cm4.h;Drivers\CMSIS\Include\core_cm7.h;Drivers\CMSIS\Include\core_sc000.h;Drivers\CMSIS\Include\core_sc300.h;Drivers\CMSIS\Include\mpu_armv7.h;Drivers\CMSIS\Include\mpu_armv8.h;Drivers\CMSIS\Include\tz_context.h;
-
-[PreviousUsedCubeIDEFiles]
-SourceFiles=Core\Src\main.c;Core\Src\gpio.c;Core\Src\freertos.c;Core\Src\can.c;Core\Src\dma.c;FATFS\Target\user_diskio.c;FATFS\App\fatfs.c;Core\Src\spi.c;Core\Src\usart.c;Core\Src\stm32f1xx_it.c;Core\Src\stm32f1xx_hal_msp.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_can.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;Core\Src\system_stm32f1xx.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_can.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;Core\Src\system_stm32f1xx.c;;;Middlewares\Third_Party\FatFs\src\diskio.c;Middlewares\Third_Party\FatFs\src\ff.c;Middlewares\Third_Party\FatFs\src\ff_gen_drv.c;Middlewares\Third_Party\FatFs\src\option\syscall.c;Middlewares\Third_Party\FreeRTOS\Source\croutine.c;Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;Middlewares\Third_Party\FreeRTOS\Source\list.c;Middlewares\Third_Party\FreeRTOS\Source\queue.c;Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;Middlewares\Third_Party\FreeRTOS\Source\tasks.c;Middlewares\Third_Party\FreeRTOS\Source\timers.c;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3\port.c;
-HeaderPath=Drivers\STM32F1xx_HAL_Driver\Inc;Drivers\STM32F1xx_HAL_Driver\Inc\Legacy;Middlewares\Third_Party\FreeRTOS\Source\include;Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2;Middlewares\Third_Party\FreeRTOS\Source\portable\GCC\ARM_CM3;Middlewares\Third_Party\FatFs\src;Drivers\CMSIS\Device\ST\STM32F1xx\Include;Drivers\CMSIS\Include;Core\Inc;FATFS\Target;FATFS\App;
-CDefines=USE_HAL_DRIVER;STM32F103xB;USE_HAL_DRIVER;USE_HAL_DRIVER;
-
diff --git a/STM32_CO2_NODE/App/Task/co2_task.cpp b/STM32_CO2_NODE/App/Task/co2_task.cpp
new file mode 100644
index 0000000..0fb5c45
--- /dev/null
+++ b/STM32_CO2_NODE/App/Task/co2_task.cpp
@@ -0,0 +1,3 @@
+void test_cpp()
+{
+}
diff --git a/STM32_CO2_NODE/Core/Inc/co2_data.hpp b/STM32_CO2_NODE/Core/Inc/co2_data.hpp
new file mode 100644
index 0000000..06d13f8
--- /dev/null
+++ b/STM32_CO2_NODE/Core/Inc/co2_data.hpp
@@ -0,0 +1,9 @@
+#pragma once
+
+#include <stdint.h>
+
+struct CO2Data
+{
+    uint32_t timestamp;
+    uint16_t ppm;
+};
diff --git a/STM32_CO2_NODE/Core/Src/freertos.c b/STM32_CO2_NODE/Core/Src/freertos.c
index 876369d..8eb7ba5 100644
--- a/STM32_CO2_NODE/Core/Src/freertos.c
+++ b/STM32_CO2_NODE/Core/Src/freertos.c
@@ -25,6 +25,8 @@
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
+#include "queue.h"
+#include "co2_data.hpp"
 
 /* USER CODE END Includes */
 
@@ -45,20 +47,29 @@
 
 /* Private variables ---------------------------------------------------------*/
 /* USER CODE BEGIN Variables */
+QueueHandle_t sdQueue;
+QueueHandle_t canQueue;
 
 /* USER CODE END Variables */
-/* Definitions for defaultTask */
-osThreadId_t defaultTaskHandle;
-const osThreadAttr_t defaultTask_attributes = {
-  .name = "defaultTask",
+/* Definitions for CO2Task */
+osThreadId_t CO2TaskHandle;
+const osThreadAttr_t CO2Task_attributes = {
+  .name = "CO2Task",
   .stack_size = 128 * 4,
   .priority = (osPriority_t) osPriorityNormal,
 };
-/* Definitions for defaultTask01 */
-osThreadId_t defaultTask01Handle;
-const osThreadAttr_t defaultTask01_attributes = {
-  .name = "defaultTask01",
-  .stack_size = 512 * 4,
+/* Definitions for SDTask */
+osThreadId_t SDTaskHandle;
+const osThreadAttr_t SDTask_attributes = {
+  .name = "SDTask",
+  .stack_size = 256 * 4,
+  .priority = (osPriority_t) osPriorityNormal,
+};
+/* Definitions for CANTask */
+osThreadId_t CANTaskHandle;
+const osThreadAttr_t CANTask_attributes = {
+  .name = "CANTask",
+  .stack_size = 128 * 4,
   .priority = (osPriority_t) osPriorityNormal,
 };
 
@@ -67,8 +78,9 @@ const osThreadAttr_t defaultTask01_attributes = {
 
 /* USER CODE END FunctionPrototypes */
 
-void StartDefaultTask(void *argument);
-void StartTask02(void *argument);
+void StartCO2Task(void *argument);
+void StartSDTask(void *argument);
+void StartCANTask(void *argument);
 
 void MX_FREERTOS_Init(void); /* (MISRA C 2004 rule 8.1) */
 
@@ -95,15 +107,21 @@ void MX_FREERTOS_Init(void) {
   /* USER CODE END RTOS_TIMERS */
 
   /* USER CODE BEGIN RTOS_QUEUES */
+sdQueue = xQueueCreate(10, sizeof(CO2Data));
+canQueue = xQueueCreate(10, sizeof(CO2Data));
+
   /* add queues, ... */
   /* USER CODE END RTOS_QUEUES */
 
   /* Create the thread(s) */
-  /* creation of defaultTask */
-  defaultTaskHandle = osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);
+  /* creation of CO2Task */
+  CO2TaskHandle = osThreadNew(StartCO2Task, NULL, &CO2Task_attributes);
 
-  /* creation of defaultTask01 */
-  defaultTask01Handle = osThreadNew(StartTask02, NULL, &defaultTask01_attributes);
+  /* creation of SDTask */
+  SDTaskHandle = osThreadNew(StartSDTask, NULL, &SDTask_attributes);
+
+  /* creation of CANTask */
+  CANTaskHandle = osThreadNew(StartCANTask, NULL, &CANTask_attributes);
 
   /* USER CODE BEGIN RTOS_THREADS */
   /* add threads, ... */
@@ -115,40 +133,58 @@ void MX_FREERTOS_Init(void) {
 
 }
 
-/* USER CODE BEGIN Header_StartDefaultTask */
+/* USER CODE BEGIN Header_StartCO2Task */
 /**
-  * @brief  Function implementing the defaultTask thread.
+  * @brief  Function implementing the CO2Task thread.
   * @param  argument: Not used
   * @retval None
   */
-/* USER CODE END Header_StartDefaultTask */
-void StartDefaultTask(void *argument)
+/* USER CODE END Header_StartCO2Task */
+void StartCO2Task(void *argument)
 {
-  /* USER CODE BEGIN StartDefaultTask */
+  /* USER CODE BEGIN StartCO2Task */
   /* Infinite loop */
   for(;;)
   {
     osDelay(1);
   }
-  /* USER CODE END StartDefaultTask */
+  /* USER CODE END StartCO2Task */
 }
 
-/* USER CODE BEGIN Header_StartTask02 */
+/* USER CODE BEGIN Header_StartSDTask */
 /**
-* @brief Function implementing the defaultTask01 thread.
+* @brief Function implementing the SDTask thread.
 * @param argument: Not used
 * @retval None
 */
-/* USER CODE END Header_StartTask02 */
-void StartTask02(void *argument)
+/* USER CODE END Header_StartSDTask */
+void StartSDTask(void *argument)
 {
-  /* USER CODE BEGIN StartTask02 */
+  /* USER CODE BEGIN StartSDTask */
   /* Infinite loop */
   for(;;)
   {
     osDelay(1);
   }
-  /* USER CODE END StartTask02 */
+  /* USER CODE END StartSDTask */
+}
+
+/* USER CODE BEGIN Header_StartCANTask */
+/**
+* @brief Function implementing the CANTask thread.
+* @param argument: Not used
+* @retval None
+*/
+/* USER CODE END Header_StartCANTask */
+void StartCANTask(void *argument)
+{
+  /* USER CODE BEGIN StartCANTask */
+  /* Infinite loop */
+  for(;;)
+  {
+    osDelay(1);
+  }
+  /* USER CODE END StartCANTask */
 }
 
 /* Private application code --------------------------------------------------*/
diff --git a/STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.cpp b/STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.cpp
new file mode 100644
index 0000000..b3a5689
--- /dev/null
+++ b/STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.cpp
@@ -0,0 +1,5 @@
+#include "mhz19c.hpp"
+
+MHZ19C::MHZ19C()
+{
+}
diff --git a/STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.hpp b/STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.hpp
new file mode 100644
index 0000000..7545731
--- /dev/null
+++ b/STM32_CO2_NODE/Drivers/MHZ19C/mhz19c.hpp
@@ -0,0 +1,7 @@
+#pragma once
+
+class MHZ19C
+{
+public:
+    MHZ19C();
+};
diff --git a/STM32_CO2_NODE/STM32_CO2_NODE.ioc b/STM32_CO2_NODE/STM32_CO2_NODE.ioc
index 727cfe8..53a7e7f 100644
--- a/STM32_CO2_NODE/STM32_CO2_NODE.ioc
+++ b/STM32_CO2_NODE/STM32_CO2_NODE.ioc
@@ -19,7 +19,7 @@ Dma.USART1_RX.0.Priority=DMA_PRIORITY_LOW
 Dma.USART1_RX.0.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority
 FREERTOS.FootprintOK=true
 FREERTOS.IPParameters=Tasks01,FootprintOK
-FREERTOS.Tasks01=defaultTask,24,128,StartDefaultTask,Default,NULL,Dynamic,NULL,NULL;defaultTask01,24,512,StartTask02,Default,NULL,Dynamic,NULL,NULL
+FREERTOS.Tasks01=CO2Task,24,128,StartCO2Task,Default,NULL,Dynamic,NULL,NULL;SDTask,24,256,StartSDTask,Default,NULL,Dynamic,NULL,NULL;CANTask,24,128,StartCANTask,Default,NULL,Dynamic,NULL,NULL
 File.Version=6
 GPIO.groupedBy=Group By Peripherals
 KeepUserPlacement=false