This is a unified OpenSprinkler firmware for Arduino, and Linux-based OpenSprinklers such as OpenSprinkler Pi. For OS (Arduino-based OpenSprinkler) 2.x: https ...

You need another app from play store to configure the relay module to connect to your WiFi network https://play.google.com/store/apps/details?id=com.cmmakerclub.iot ...

Waveshare ESP32-S3-Relay-6CH is a 6-channel WiFi and Bluetooth relay module based on Espressif Systems ESP32-S3 wireless microcontroller that also supports RS485 control and comes with headers taking ...

リレーモジュールの選択 リレーモジュールはArduinoと直接接続できるように設計されており、内蔵のドライバ回路が含まれていることが一般的です。 これにより、ArduinoのGPIOピンが直接リレーを駆動できます。

The “ESP32 IoT Relay Board” is a credit card-sized ESP32 board with four small 250VAC/30VDC 7A relays that runs Tasmota open-source firmware and supports Alexa & Google Assistant for voice control.