Wow, I’m super impressed by this thread!! You guys rock
A few notes in no particular order:
There should be no situation where you get low flow measurements from poor signal strength. All our transmissions are error checked, so we will either get a correct measurement or nothing at all. There was something else going on with @johnny2678’s readings but we were working on signal strength first.
@johnny2678 your SNR is now at -6, so definitely better. One thing I was reminded yesterday is the SNR is averaged over the last hour or so of messages. That makes it a lot harder to run the real time testing we work trying, so I’m looking for a way to us do some better testing next time. I’d really like to determine whether the pringles can made the difference or if your controller happened to switch frequencies and maybe that made an impact.
As I discussed with @johnny2678 over the weekend, range to a buried install is very challenging to assess. With no obstructions we’ve seen 300 ft into a valve box. However, depending on hills and obstructions, range may be more like 75 ft in a worst case. Also, we are maxed out on power… y’all are correct it is a pretty low power level to save battery life. Our radio chip had two RF outputs, and we went with the one without an extra amplification stage. It was a tough call, but it saves a bunch of battery life for not losing that much output power. Unfortunately, there’s no repeater for our system, just another trade off we had to make. We kept the system very simple and pushed range as far as we possible could in a star network. FYI, the controller has quite a bit higher power than the flow meter since it’s wall powered.
SNR and RSSI are not exposed in the app at this time.
@corfam Yes, you’re right on with where the antenna is located. If you’re curious, this is the chip antenna we use:
I think I covered most everything, but let me know if there are other questions I do my best to answer Looking forward to some more sleuthing.