How to send a message to smartphone whenever button is pressed, using ble_app_uart example

[Xiam]

I connected nrf52833 with a button and a LED on breadboard, using ble_app_uart example to send message between phone and board. How can I make a function that whenever I press a button to turn on LED, a message like "LED ON" is sent to my smartphone? Thank you

[awneil]

Have you studied the ble_app_uart example to see how it works?

It collects data received from the hardware UART, and sends that over BLE.

So, instead of collecting from the UART, you need your button to create your message, and then pass that to BLE.

As far as the BLE part is concerned, it neither knows nor cares where the data came from.

[Karl Ylvisaker]

Hello,

This is a duplicate of the question you have asked in your other ticket - https://devzone.nordicsemi.com/f/nordic-q-a/72541/how-to-turn-on-led-base-on-message-sent-by-ble_app_uart - and it has been answered there.
I will therefore close this ticket.

Best regards,
Karl