I recently bought a EMonPi and set it up to monitor my solar and grid usage.
All seemed to be working well until the last few days where I noticed the if you touched the physical container there was a buzz/vibration off of it and it would print gibberish on the screen and crash.
I also saw a lot of the following in the logs
“Jun 13 14:09:32 emonpi kernel: [ 1025.841193] Under-voltage detected! (0x00050005)
Jun 13 14:09:36 emonpi kernel: [ 1030.001168] Voltage normalised (0x00000000)”
even though I using the supplied power supply.
I tried to look at monitors this morning but it was incredibly slow and didn’t connect most of the time.
I reset it but now the LCD is stuck at “Booting…” and even though I have ssh access into the box I couldn’t seem to figure out what was going wrong. The input values hadn’t bee updated in hours. I eventually did a factor reset and reconfigured it again. However I’m now no longer getting any input from the CT probes. I suspect that there’s a hardware fault as I’m getting the following in the emonhub.log
2021-06-13 13:52:23,364 INFO MainThread EmonHub emonHub (emon-pi variant) v2.2.6
2021-06-13 13:52:23,365 INFO MainThread Opening hub…
2021-06-13 13:52:25,372 WARNING MainThread Device communication error - check settings
2021-06-13 13:52:30,383 WARNING MainThread Setting emoncmsorg apikey: obscured
2021-06-13 14:17:31,988 INFO MainThread EmonHub emonHub (emon-pi variant) v2.2.6
2021-06-13 14:17:31,989 INFO MainThread Opening hub…
2021-06-13 14:17:33,993 WARNING MainThread Device communication error - check settings
2021-06-13 14:17:39,007 WARNING MainThread Setting emoncmsorg apikey: obscured
Any ideas on how to fix it ?