ESP8266 based 7 segment WiFi clock
- ESP8266 MCU
- 116x WS2813 RGB LED, ~32W for 4 digits
- 9-24V supply voltage
- 4xIntegrated 5V/3A voltage regulator, >90% efficiency @ 12V
- Input voltage/current sensor
- Temperature sensor to prevent overheating
- Real time clock
- Ambient light sensor
First pictures still with a little bit tape here and there:
The firmware has a temperature protection to avoid any damage due to overheating.
To get a better contrast, apply car window tining foil with 50% light transmittance to the printed diffusors.
You can find it at aliexpress for $2-3 (Auto Tint Film)...