![Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, żółty Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, żółty](https://kamami.pl/12674-large_default/adafruit-056-4-digit-7-segment-display-wi2c-backpack-yellow.jpg)
![Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, żółty Wyświetlacz LED 7 segmentów, 4 cyfry, I2C, żółty](https://kamami.pl/12674-large_default/adafruit-056-4-digit-7-segment-display-wi2c-backpack-yellow.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 879
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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 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 with four 0.56” high digits. In red. Q-5641ASK11
7-segment LED display, 1 digit 7mm, blue color (470nm), 4 mcd (10mA), common anode, Pb-free. LED1-AS-B-02811BB
7-segment LED display, 1 digit 20.40mm, two dots, blue color (470nm), 4000ucd (10mA), common anode, Pb-free. LED1-AS-B-08012BB
4-digit, 8-segment LED display module with 8-level brightness adjustment. Communication via the I2C interface. DFRobot DFR0645-R
7-segment LED display, 1 number 14,20mm, green color (470nm), 6000 ucd (10mA), common anode, Pb-free. LED1-AS-B-05613BB
No product available!
7-segment LED display, 1 digit 38.10mm, amber (605nm), 15,000ucd (10mA), common anode, Pb-free. LED1-AS-B-15011BMA
No product available!
Module with a 4-element 14-segment display. The board is equipped with a Qwiic connector and communicates via the I2C interface. SparkFun COM-18566
4-digit 7-segment LED display, 1.2" diagonal, with a built-in controller allowing communication via the I2C bus connected to the Stemma QT/Qwiic connector. Red display. Adafruit 1270
No product available!
7-segment LED display, 1 digit 101.60mm, red color (648nm), 60 mcd (10mA), common anode, Pb-free. LED1-AS-B-40011DMR
No product available!
7-segment LED display, 1 digit 20.40mm, two dots, green (570nm), 18 mcd (10mA), common anode, Pb-free. LED1-AS-B-08012BMG
Candy-bar sized 4-digit seven-segment bright crisp display good for adding numeric output. Besides the four 7-segments there is a top right dot (useful as a degrees symbol) and two sets of colon-dots (for time-based projects). Adafruit 1264
No product available!
4-digit 7-segment 0.56 "LED display. Built-in HT16K33 controller allowing communication via I2C bus. Equipped with STEMMA QT connector. Adafruit 5599
Module with 8-digit 7-segment LED display. The board is equipped with a 74HC595 driver and communicates via a digital interface
This is the Blue Adafruit 0.56" 4-Digit 7-Segment Display w/ FeatherWing Combo Pack! We also have these combo packs in Green, Red, White, and Yellow! Adafruit 3106
No product available!
This is the Green Adafruit 0.56" 4-Digit 7-Segment Display w/ FeatherWing Combo Pack! We also have these combo packs in Blue, Red, White, and Yellow! Adafruit 3107
No product available!
7-segment LED display, 1 number 14,20mm, green color (570nm), 4000 ucd (10mA), common anode, Pb-free. LED1-AS-B-05613BG
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 879