Introduction - If you have any usage issues, please Google them yourself
Experiment IV (second edition): The Atmega8 trigger D latches realize the function of the realization of the purpose of: 1. Pin set to input can be programmed to understand how to set pull-up resistor. 2. How to use the software to control the sampling frequency and time to achieve the purposes of certain anti-interference 3. In order to allow program to run more stable and prevent the running to fly, how to use the watchdog?