本项目将在Arduino IDE环境下，利用ESP32产生的PWM信号控制多个LED。项目所需物料如下： ESP32带一个包含16通道LED PWM控制器，可配置以产生不同特性的PWM信号。项目开始之前需要先安装Arduino IDE，连接妥当后就可以把ESP32 DOIT DEVKIT V1板用作LED PWM控制器了。 使用Arduino ...

This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, I’d ...