This Arduino Nano is programmed as a Morse Code Flasher Beacon controlling a Harbor Freight 27 LED 100-Lumen Superbright Worklight/Flashlight #67227. Try the Online ...
This started as a simple desk clock, an Arduino Nano, a Max7219 LED matrix, and a DS3231 RTC. I'd occasionally tinker with it, swap in some scrolling text, try something out, then flash the clock ...
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