https://devzone.nordicsemi.com/f/nordic-q-a/101944/controlling-zigbee-light-bulb-using-uartHello everyone!! So I have create a working zigbee light switch using nrf52840 dongle. Now my next step is that instead of using button present in the dongle I have to control it using laptop keys(to be precise using UART). Here is the main.c file codeen-USTelligent Community 13Wed, 19 Jul 2023 13:16:25 GMThttps://devzone.nordicsemi.com/thread/437264?ContentTypeID=1Wed, 19 Jul 2023 13:16:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dc6539c3-4b55-4ea6-bec6-348d0aa2fd5fElfving<p>Hello Coder and thank you for your patience.</p> <p>Summer can be a bit hectic on DevZone, so there might unfortunately be some delays in the responses here. Though we will get to you eventually.</p> [quote user=""]Now my next step is that instead of using button present in the dongle I have to control it using laptop keys(to be precise using UART).[/quote][quote user=""]Can anyone help me to modify this code so that I can control zigbee light bulbs using UART[/quote] <p>Great! I don&#39;t have the time to do it <em>for you</em> unfortunately. Though I&#39;ll definitely try to help.</p> <p>I would recommend you to have a look at our peripheral uart sample, and use the uart functionality from that along with <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/bluetooth/peripheral_uart/README.html#usb-cdc-acm-extension">this configuration</a>.&nbsp;</p> <p>Though I should mention that for development you should rather use a development kit. A dongle can be practical at times, though without the onboard debugger you&#39;ll have a hard time developing. Do you have a DK?</p> <p>Regards,</p> <p>Elfving</p><div style="clear:both;"></div>