SKU: 68349058693
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HVAC control
which could be a good partner for your tank-like robots
* Create visualizations that change based on sound
green and blue OLEDs
Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - Red Shipping:1 day HVAC controlWhat's better than a single LED? Lots of LEDs! A fun way to make a numeric display is to use a 4 digit 7 segment display . LED 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, wouldn't it
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