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Problem with BLE read data

Hello ! I'm beginning work with BLE . I have a project in which nrf51 is a central. App from smartphone will sending to central any key for example "3214941E0" when central accept this key for example led light up. I already read all tutorials but I still don't know how i should do this.

I want any link with tutorials how i can do this or any suggestion.

Project will be somethink like "Smart gate" . When key is ok app will send signal to open gate .

  • I'm afraid these Tutorials and nRF5 Get Started on Infocenter are the best sources, there is no magic bypass from "I don't know" to "my project magically works, I'm done"...

  • As endnode says, please look at the tutorials section. The central tutorial should answer your question. Maybe you can take another look at that, and see if you have a more specific questions. Note that on the peripheral there will be an write event when the "key" is received so you can choose to do some action based on that.