NurdPower
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Project NurdPower | |
---|---|
Power usage display | |
Status | In progress |
Contact | bertrik |
Last Update | 2019-06-29 |
Intro
Shows power usage (from MQTT) on a 7-segment display.
Hardware
Wemos D1 mini connected to a TM1637 4x 7-segment display.
Connections:
- display 5V to Wemos 5V
- display GND to Wemos GND
- display DIO to Wemos D4
- display CLK to Wemos D3
Software
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