Thanks Harald for the quick reply.
I thought it might be something like that, but I was guessing the names !
If you are redesigning there here are some ideas...
- Access to a timestamp
- Sensor MAC address to uniquely ID the sensor. (We already use the two user variables for an API key and user device notes)
- Increase the number of characters in user variables. Maybe 256 ? I think it's 31 at the moment, which clipped our api key.
- Use TLS so we can push to an https endpoint