BLE Advertisement scanner

[paul0208]

Hi,

I'm on pre-product of BLE Advertisement packet scanner.

My product is gathering the adv packets  from a bunch of BLE tag about 20~30 tags.

So, I use two nRF52832 modules on scanner to prevent the missing adv packets from tag.

This is good or no effective idea?

BR

Paul

[run_ar]

Hi,

Having 2 scanners will increase the probability of receiving advertisement packets, as long as they are not scanning on the same channel at the same time from the same location. But only 20-30 tags will have a low probability of collisions, it's likely you will be able to receive advertisements from all tags within a given time periode. Note that you will need to calculate with sending multiple advertisement packets from each tag regardless.

[paul0208]

Thanks run_ar

How to program scanning different channel ? 

Main board MCU which is gathering adv packet from two BLE module, reset the two BLE module at slight different time, so two module are starting at slight different time. It is enough things to do?

BR

[run_ar]

Hi,

Scanning at a fixed channel is not supported, so you would need a custom scanner for that. However you could set up a pin to toggle on radio events, so the main mcu knows when those are happening. Then it can start one scanner, wait for it to change channel, then start the next one.