Dot Matrix LED Clock, Event, Temperature & Humidity Display

Updated: Jul 2, 2021

It’s a simple Clock, Event message, temperature and humidity display, and so far it’s working pretty well. It’s built around an Arduino Mega2560, rtc DS1307 and uses a DHT11 sensor.


1. arduino mega2560

2. RTC DS1307

3. DHT11

4. Push button Switch - 3nos

.5. Dot matrix module - 8 nos

6. LDR

7. 10k resistor

Circuit diagram: