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the two versions can be distinguished by the markings on the driver chip
DIGI part number: XB24CZ7WIT-004
Installing the Pololu Multi-Hub Wheel on a motor shaft
monitor sensors
the ATP is the fix you need
Adafruit Mini 8x8 LED Matrix w/I2C Backpack - Yellow Pressure Sensors the two versions can beWhat'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 64 LEDs you need 16 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, wouldn't it be
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