I have a heatpump monitor which seems to be running correctly except for the most important bit - the MBUS reader. I measure 29v across the terminals but do not see any inputs in Emoncms created as per the setup guide.
I set the firmware for the Sontex:
#define MBUS_ENABLE 1
Not sure what the address is so set to scan:
byte mbus_address = 0; // Set to 0 for auto scan, (test: check timeout 10ms)
I have also tried the MBUS reader firmware but have not had any luck with that either (no ACK response to any of the commands I try).
Any help appreciated!