[spudstrawb]

Well my SHT31 arrived today (the one that Mikko mentioned) but I can't for the life of me get it working. I changed the TX unit configuration from HTU21D to SHT21 and then ran it but the TX led on the TX unit flashes twice on boot and then gives nothing. Nothing comes up in debug either - it all just sits there. I've tried a number of other things - running it off the I2C pins etc (as a HTU21D). At least the TX unit will transmit in that mode but it is giving temp and humidity values of -312.72 for both. So I don't know if:
* It was faulty on arrival.
* I've damaged it during installation.
* I'm missing a setting somewhere.

I was hoping to provide some more insight into HTU21D vs SHT31 accuracy but I'm back running with the HTU21D for now.