SKU: 22147730379
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Wixel programmable USB wireless module (without header pins installed)
we hand-soldered it on a breakout board with a 3
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Assembled Adafruit 0.56" 4-Digit 7-Segment Display w/ I2C Backpack QT - Green Spedizione:4-6 Giorni Wixel programmable USB wireless moduleWhat's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4 digit 7 segment display. Matrices like these are 'multiplexed' so to control all the seven segment LEDs you need 14 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of space. Here at Adafruit we feel your pain! After all,
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