Now, however, [Jose] has come up with an LED candle that solves all of these problems. (Original link to the project in Spanish.) The heart of the project is an Arduino Pro Mini, which is ...
Instead of the relative horror of driving 40 LEDs with a single Arduino, [Martyn] bit the bullet and got a Maxim 7221 LED driver. Controlling 64 LEDs over a three-wire interface simplified the ...
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