stm32f103rct6 mq135

STM32F103RCT6 is a microcontroller from STMicroelectronics. It is based on the ARM Cortex-M3 core and has 128 KB flash memory, 20 KB SRAM, and various other peripherals such as timers, ADCs, DACs, USARTs, SPIs, I2Cs, etc.

MQ135 is a gas sensor that can detect various gases including ammonia, nitrogen oxides, benzene, and smoke. It is commonly used for air quality monitoring in homes, offices, and other indoor environments.

To use MQ135 with STM32F103RCT6, you can connect the sensor to one of the ADC pins of the microcontroller and read the analog voltage output of the sensor. Then, you can convert the voltage to gas concentration using the calibration curve provided by the manufacturer. You can also interface the sensor using the I2C or SPI protocol if available.