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Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - Blue

Adafruit 0.56'' 4-Digit 7-Segment Display w/I2C Backpack - Blue
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Our Price:  £12.23(Inc. 20% VAT)(£10.19 Exc. VAT)Earn 12 Loyalty Points
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SKU:  PPADA881
Bar Code:  5055421055295
Part Number:  881
Brand:  AdaFruit

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  (1 Review)


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.

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.

The product kit comes with:

A bit of soldering is required to attach the matrix onto the backpack but its very easy to do and only takes about 5 minutes.

Of course, in classic Adafruit fashion, we also have a detailed tutorial showing you how to solder, wire and control the display. We even wrote a very nice library for the backpacks so you can get running in under half an hour, displaying images on the matrix or numbers on the 7-segment. If you've been eyeing matrix displays but hesitated because of the complexity, his is the solution you've been looking for!


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Customer Reviews
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Great little display, works flawlessly.
Wednesday, 19 February 2014  |  Simon

Comes with everything you need and the Adafruit instructions are great. The backpack and library work quickly and easily with your arduino board.Was my first through hole soldering project and it was simple enough to be successful!

 

2 of 2 people found this review helpful.

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