The common serial over WiFi modules available are ESP-01 with serial adapter board and the more recently available module the DT-06.
By default the DT-06 module is set to 9600 baud rate and TCP port 9000. The DT-06 module must be configured to 115200 baud rate.
Arduino | DT-06 |
---|---|
5V | VCC |
GND | GND |
RX | TX |
TX | RX |
To be completed.