We have a home made BLE device based on nrfR1822. This one has two embedded sensors sampling data at a frequency of 25Hz.
In regular mode, the device sends every second or so some markers extracted from 25Hz raw data (local embedded data processing) through 2 characteristic notifications.
In debug mode, the device sends the whole signals (at 25Hz, so one frame per 40ms) through 2 different characteristic notifications.
When I connect the device from and Android phone, I can receive the 25Hz signals in parallel (and even more).
When I connect the device from PC using a s130 dongle, only one characteristic data can be received:
- If I toggle CCCD On for characteristic #1, I receive data for #1 at a 25Hz frequency
- If I toggle CCCD On for characteristic #2, I don't receive any data for #2 (still receiving data for #1)
- If I toggle CCCD Off for characteristic #1, I then receive data at a 25Hz frequency for #2
- If I toggle CCCD On for characteristic #1, I don't receive any data for #1 (still receiving data for #2)
Looks like s130 dongle is unable to receive a huge amount from two different characteristics.
Note that, in the mean time, CCCD is On for battery level characteristic and I receive this one correctly in any configuration (a battery level is sent every few seconds, so frequency is very low).
Is this a bug? A known issue? A bad configuration I'm using (as it works on Android, I know the problem does not come from my BLE device)...
