ESP32 based RGB-LED-Matrix WiFi Clock with MQTT sourced room and outside temperature display and date. Automatic brightness control based on LDR
- displays Time HH:MM:SS
- displays date
- displays 2 temperatures from MQTT server: i.e. room and outside
- Brightness control with LDR
- NTP timesource
- timezone changable
- firmware updatable over the air (HTTP webserver)
- 5V/1A USB powersupply
- power consumtion average is about 1.3W
PCB was sourced from this design: https://hackaday.io/project/28945-iot-rgb-led-matrix-controller-esp32
Display: search for "indoor 3mm led module full color 3264 96mm192mm hub75 1/16S rgb dot matrix p3" at aliexpress https://www.aliexpress.com/item/32651977545.html
ESP32 NodeMCU:
https://www.pollin.de/p/joy-it-esp32-node-mcu-modul-810873
HUB75 DMA library used: https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-DMA
Wall mounted:
With acrylic front plate (30% light transfer):
Backside:
LDR detail:
Acrylic front plate is mounted with black PVC tape :-)