Frequently asked information about the smart meter module.
Every 10 minutes, the smart meter module registers via the P1 port of your smart electricity meter:
For installation instructions, please refer to the installation manual.
Whenever the smart meter is successfully read, you’ll see a light flashing two quick greens. If the reading fails, the light will flash two quick reds. The smart meter is read at fixed intervals: every full hour and 10, 20, 30, 40, and 50 minutes past the hour. You can wait for it if you want to be sure. The ‘Last seen at’ time under ‘Smart meter module’ in the ‘Sources’ screen of the NeedForHeat app is updated shortly afterward (use pull-down to refresh).
A Wi-Fi reset of the device may be necessary if you change your home Wi-Fi network, if you want to connect the device to a different home Wi-Fi network, or for other reasons.
The Wi-Fi reset works as follows:
The source code of this measurement device is publicly available on GitHub under twomes-p1-reader-firmware.
Please send an email to the NeedForHeat research helpdesk via needforheatonderzoek@windesheim.nl.