Send command to ble device and get response ?

The BLE device has a characteristic where commands can be sent (for example "BAT" as byte array to get the battery level, but it is not the only available command). And I was wondering if I could just activate notifications on the descriptor (cccd uuid) with bytes 0x01, 0x00 and then send the command trough "requestWrite" on characteristic and get the response on "onCharacteristicUpdate".

Would it be something that would work ? Or what would be the way to do it ?

0 jim_m_58 2 months ago

You need to understand the BLE profile of the device to see what you can do. a Characteristic can be read, write, notify, or a combination, like read+notify. Have you looked at the NordicThingy52 sample in the SDK?

Here's what can done with that device for services and characteristics

0 7525695 2 months ago in reply to jim_m_58

Hi, thank you, I guess I've actually figured it out. And I will try with a nrf52 dk as soon as I can.