4-Dig 7-Segment I2C 14mm - GREEN

4-Dig 7-Segment I2C 14mm - GREEN

4-Dig 7-Segment I2C 14mm - WHITE

4-Dig 7-Segment I2C 14mm - WHITE

4-Dig 7-Segment I2C 14mm - BLUE

132,00 kr 105,60 kr
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Fåtal i lager: 2 st
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ADA-0881
  • Köp 5 för 128,70 kr 102,96 kr st och spara 3%
  • Köp 10 för 125,40 kr 100,32 kr st och spara 5%
What'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, wouldn't it be awesome if you could control a matrix without tons of wiring? That's where these adorable LED matrix backpacks come in. We have them in two flavors - a mini 8x8 and a 4-digit 0.56" 7-segment. They work perfectly with the matrices we stock in the Adafruit shop and make adding a bright little display trivial.

The matrices use a driver chip that does all the heavy lifting for you: They have a built in clock so they multiplex the display. They use constant-current drivers for ultra-bright, consistent color (the images above are photographed at the dimmest setting to avoid overloading our camera!), 1/16 step display dimming, all via a simple I2C interface. The backpacks come with address-selection jumpers so you can connect up to four mini 8x8's or eight 7-segments (or a combination, such as four mini 8x8's and four 7-segments, etc) on a single I2C bus.
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