![Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, niebieski Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, niebieski](https://kamami.pl/12666-large_default/adafruit-056-4-digit-7-segment-display-wi2c-backpack-blue.jpg)
![Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, niebieski Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, niebieski](https://kamami.pl/12666-large_default/adafruit-056-4-digit-7-segment-display-wi2c-backpack-blue.jpg)
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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. Adafruit 881
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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.
The product kit comes with:
A fully tested and assembled LED backpack
Ultra-bright 4-digit 0.56" tall blue seven-segment display
4-pin header
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!
This board/chip uses I2C 7-bit address between 0x70-0x77, selectable with jumpers
7-segment LED display, 1 digit 38.10mm, amber (605nm), 15,000ucd (10mA), common anode, Pb-free. LED1-AS-B-15011BMA
No product available!
7-segment LED display, 1 digit 7mm, blue color (470nm), 4 mcd (10mA), common cathode, Pb-free. LED1-AS-B-02811AB
7-segment LED display with a diameter of 14.20 mm and an ultra-red color. The common cathode ensures easy integration with control systems. LED1-AS-05613AMR-B
7-segment LED display, 1 digit 20.40mm, two dots, red (640nm), 6000ucd (10mA), common anode, Pb-free. LED1-AS-B-08012BS
Module with 4-digit 7-segment LED display. The board is equipped with a TM1637 driver and communicates via a digital interface
4-digit 7-segment 0.56 "LED display. Built-in HT16K33 controller allowing communication via I2C bus. Equipped with STEMMA QT connector. Adafruit 5599
7-segment LED display, 1 digit 30.60mm, green (575nm), 20mcd (10mA), common anode, red (630nm), 20mcd (10mA), common anode. Pb-free. LED1-AS-N-12011BMRMG
Module with a 4-element 14-segment display. The board is equipped with a Qwiic connector and communicates via the I2C interface. SparkFun COM-16918
7-segment LED display with four 0.56” high digits. In red. Q-5641ASK11
7-segment LED display, 1 13.20mm digit, bright green (575nm), 15mcd (10mA), common anode, Pb-free. LED1-AS-B-05211BMG
No product available!
7-segment LED display, 1 digit 7mm, blue color (470nm), 4 mcd (10mA), common anode, Pb-free. LED1-AS-B-02811BB
LED display 25.40mm 1.00 "single, green (570nm), 12mcd (10mA), common anode, replacement for TOS-1106BG-B. LED1-AS-10016BG-B
Module with 4-digit 7-segment LED display. The board is equipped with a TM1637 driver and communicates via a digital interface
7-segment LED display, 1 digit 14,20mm, blue color (470nm), 12mcd (10mA), common anode, Pb-free. LED1-AS-B-23011BB
No product available!
7-segment LED display, 1 digit 9.90mm, bright green (575nm), 15mcd (10mA), common cathode, Pb-free. LED1-AS-B-03911AMG
Module with 8-digit 7-segment LED display. The board is equipped with a 74HC595 driver and communicates via a digital interface
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. Adafruit 881