Introduction - If you have any usage issues, please Google them yourself
【development environment Keil】 1, DC motor speed: key speed, PWM section shows speed gear, gear motor according to the need to adjust the speed input and PWM motor drive side connecting 2 traffic lights: Learning to use countdown timer Principle 3 traffic lights, Responder: key answer in the same time, press a key and effective, the other locked reset button again after 4, infrared remote control decoding digital display: by supporting the remote control at 1-9 in the corresponding digital display 5 , PWM Dimming: Use timers generate PWM, understand the principles and use 6, Snake sample