OK, thanks, I see it’s not an easy fix. Another thought is to look at the Nordic BLE software – they’re offering OTA updates and although I’m not suggesting changing to their devices, their code might show workarounds for the android problems.

I’m an EE and embedded software engineer. It’s a shame that the firmware isn’t open source, but at least the apps and protocol are, and that’s probably the most useful area. I did look at some other wireless meters but your idea of putting two channels in is really good. I bought it with a particular application in mind – a windpowered artwork that has all the electrical parts spinning and a need to monitor power consumption and battery charging. I probably should have built wireless monitoring into it but a ready-made device is great.