Forum >Replies by sofiahaydon
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- You Reply: You can use any WiFi shield/module which is compatible with Arduino. You configure the WiFi shield in "USB" mode but for your Arduino sketch to work you will have to slide the pin to "Arduino" side, do that once your TCP server is running successfully. Similarly, the little white pin on the same side as of antenna is used to control the Rx and Tx pins, as you know Uno only has one hardware serial port, so when you want to upload the sketch to the Arduino, slide the white pin to "PROG" and once you are done with uploading, slide it to "RUN". Hope you can understand the connection easily.