Uploaded January 2021 | Updated September 2026, 2 weeks ago

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MAX7219 dot matrix module, interfaced with Arduino, displays temperature & humidity from DHT11 sensor using external interrupts.

Link to code:
akuzechie.blogspot.com/2021/01/max7219-dot-matrix-display-dht11-sensor.html

Contents:
0:00 Introduction
0:17 Block Diagram
0:47 C++ Sketch
2:38 Demonstration
3:22 Future Project: Spectrum Analyzer