I need to develop the simple mobile app to connect to the device via Bluetooth 2.1.
the interface doesn't need to be great. Just simple UI to open or close the relay .
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do u want to connect via classic Bluetooth or ble? I have done both before and can do it easily kindly message me and we can discuss it in detail regards
Hello sir, I have experience in designing electronics circuits and can program all kinds of microcontrollers. You can discuss your project with me in chat and we can move on right away. Thank you.