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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 1002
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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
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!
This is the White Adafruit 0.56" 4-Digit 7-Segment Display w/ FeatherWing Combo Pack! We also have these combo packs in Green, Red, Blue, and Yellow!
No product available!
8-segment display module, 4 digits with commas
No product available!
7-segment LED display, 1 digit 20.40mm, green color (570nm), 15 mcd (10mA), common anode, Pb-free. LED1-AS-B-08011BMG
7-segment LED display, 1 digit 9.90mm, ultra red (630nm), 24 mcd (10mA), common cathode, Pb-free. LED1-AS-B-03911AMR
No product available!
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-element 14-segment display with red backlight. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 104020133
7-segment LED display, 1 digit 25.40mm, green (575nm), 7000ucd (10mA), common anode, red (630nm), 13000ucd (10mA), common anode. Pb-free. LED1-AS-B-10016DMRMG
7-segment LED display, 1 digit 9.90mm, bright green color (470nm), 6000ucd (10mA), common anode, Pb-free. LED1-AS -03911BB-B
7-segment LED display, 1 13.20mm digit, red color (660nm), 6 mcd / se (10mA), common cathode, Pb-free. LED1-AS-B-05211AS
7-segment LED display, 1 digit 7.62mm, red color (6300nm), 6 mcd (10mA), common anode, Pb-free. LED1-AS-B-03014BS
7-segment LED display, 1 digit 30.60mm, black background green (575nm), 20mcd (10mA), common anode, red (630nm), 20mcd (10mA), common anode. Pb-free. LED1-AS-B-12011BMRMG
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
No product available!
7-segment LED display, 1 digit 20.40mm, bright yellow (590nm), 15 mcd (10mA), common anode, Pb-free. LED1-AS-B-08011BMY
7-segment LED display, 1 digit 9.90mm, green color (575nm), 8 ucd (10mA), common anode, red color (630nm), 10 ucd (10mA), common anode. Pb-free. LED1-AS-B-03915BMRMG
No product available!
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
No product available!
Module with 4-digit 7-segment LED display. The board is equipped with a TM1637 driver and communicates via a digital interface
Module with 4-digit 7-segment display. The board is equipped with a TM1637 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
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 1002