Difference between revisions of "NurdPower"

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  |Omschrijving=Power consumption display
  |Omschrijving=Power consumption display
  |Status=In progress

Latest revision as of 15:19, 11 May 2020

Project NurdPower
Power consumption display
Status Stalled
Contact bertrik
Last Update 2020-05-11


Shows power consumption (from MQTT) on a 7-segment display.


  • put it in a case
  • mount it somewhere


Wemos D1 mini connected to a TM1637 4x7-segment display.


  • display VCC to Wemos 5V (3.3V also works with red LEDs)
  • display GND to Wemos GND
  • display DIO to Wemos D4
  • display CLK to Wemos D3


Source code is on github.

Basically it subscribes to the MQTT stream, receives power updates and displays them on the 7-segment display.

Uses the following libraries:

  • TM1637 driver to set the digits.
  • WifiManager
  • PubSubClient