WiFi-enable a wide variety of USB devices using an ESP8266 and a USB host shield. For example, add a WiFi interface to a USB barcode reader or a USB RFID keyfob reader. The WeMos D1 R2 board appeared ...

Sketches for an Esp8266-01 STC 15f104W powered 1-channel relay board to be controlled remotely using an MQTT broker as communication bus without modifying physically the device nor using any third ...