LM35 temperature sensor module

This temperature sensor uses the LM35 temperature sensor, and its output voltage is in Celsius temperature scale. Its basic working principle: the temperature sensor circuit converts the measured temperature signal into a voltage signal and outputs it to the signal amplification circuit. The voltage signal corresponding to the temperature value is amplified and output to the A/D conversion circuit, which converts the voltage signal into a digital signal and sends it to the A/D conversion circuit. To the single-chip computer system, the single-chip computer system processes the digital quantity according to the display needs, and then sends it to the temperature display system for display.