Hi @Kenneth, thank you for taking the time to look that up and add it as an idea!

@papasmurph Exactly. I've been trying to use a complex exponential relationship with some empirically based factors but because I have different types of device, the relative numbers between device types are awful. The simplest approach is the best so far!

@papasmurph You're code is not working in iBeacon mode with my WiPy. Any Idea ? No problem at all on Eddystone I'm on 1.20.0.rc13 Thanks !

My lopy4 arrived and i tested with it, too, although i was pretty sure it wouldn't make a difference. It didn't, it does the same thing. I left my lopy running since yesterday noon and from 270 readings, 223 were correct. So that's around 17-18% loss.

@stef I've reported the same problems, but in my case I scan continuously, as the LoPy is USB-powered. https://forum.pycom.io/topic/1255/lopy-stops-detecting-ble-advertisements I very much hope it's not a hardware problem.

@maku Thanks a lot !