B4R Question Read data from ble device (HM-10)

interskala · Sep 17, 2019

Hai Erel,

i have problem, currently i have device(use arduino), this device can send data but i want to create softawar for read the data. i already download from https://www.b4x.com/android/forum/threads/ble-hm-10-module-broadcasting-a-single-byte.65785/ .but i can't read data from sender device.
how to read the data from my device

can you help me

Thanks

emexes · Sep 17, 2019

You need to do a SetNotify for the receive characteristic. You will then receive the up-to-20-byte packets as DataAvailable events.

emexes · Sep 17, 2019

My apologies: need to do a SetIndication, rather than SetNotify. The characteristic is:

0000ffe1-0000-1000-8000-00805f9b34fb

sometimes referred to in shorthand as just ffe1.

This post seems to confirm success:

https://www.b4x.com/android/forum/threads/bluetooth-4-0-data-exchange.103107/page-3#post-647113

and this blog post about the HM-10 BLE UART module is worth a read:

HM-10 Bluetooth 4 BLE Modules - Martyn Currey