Datalogger V4 GATT Profile use

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LVDL
Posts: 1
Joined: Tue May 16, 2017 9:18 pm

Datalogger V4 GATT Profile use

Post by LVDL »

Hello,
I bought a Freematics ONE and donwloaded the Datalogger V4 sketch on it: It is OK to have logs on SD card, but when I use a BLE Client to exploit BLE Profile sent by it, I have 3 questions:

1/ Connecting on CUSTOM SERVICE "0000FFFE0-000.." , enabling Notification on "000FFE1-000.." characteristic of this service, I receive some ASCII characters 0D/0A terminated with variable length from 6 to 8 and every about 6 seconds.
What represents this information ?

2/ If I want to change anything on Arduino BLE( GATT Profile as custom), wich Library files should I have to modify ?

3/ According to you, is there possible to have a tranparency Modem using BLE (like SPP in Bluetooth Classic) OR,
should we use a WiFi connection (using a WiFi Bee modem chip on Arduino) ?

Thanks.

PS1: I know that BLE is for low rate transmissions (due to the sleeping mode of BLE), but it exists SPP Over BLE stack (Cypress BLE for example) wich give 115 kBds transmission rate with BLE.

PS2: I'am french so please forgive my poor English...
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