ESP8266 single-channel relay development board is equipped with ESP-12F WiFi module, I/O ports are fully led out, and various power supply modes such as AC90-250V/DC7-12V/USB 5V are supported. Provide Arduino development environment reference code, suitable for ESP8266 secondary development learning, smart home wireless control and other occasions.
product information:https://drive.google.com/drive/folders/1VkS57zrTCA5RxXsOq_s4Ktnh7yEx0EZi?usp=sharing