Introduction - If you have any usage issues, please Google them yourself
The main purpose is the use of single-chip and TLC549 chip A/D conversion, the analog voltage can be converted into digital visual display of the voltage process. The analog voltage signal to be measured is sent to the analog-to-digital conversion chip TLC549 for conversion, the converted data through the microcontroller for processing, and finally with the LED display. (With PROTUES simulation map)