国外大神用ESP32-C3做了一个加热温控板，附带原理图加PCB，有兴趣的可以学习一下。原理图包含了最小系统电路，USB typeC接口电路，3.3V电压转换电路，加热控制电路，温度采集电路，旋转编码器开关采集电路，显示屏接口电路。适合搞消费电子的同学收藏学习。

Designed by Cirket open-source hardware in China, the ESP32-DIV V1 is a handheld wireless pentesting and experimentation tool ...

We have all seen Printed Circuit Board (PCB) antennas: those squiggly bits of traces on PCBs connected often to a Bluetooth, WiFi or other wireless communication chip. On modules like for the ESP8266 ...