Adafruit 1.2inch 4-Digit 7-Segment Display with I2C Backpack Yellow for Arduino

Adafruit 1.2inch 4-Digit 7-Segment Display with I2C Backpack Yellow for Arduino

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SKU: AF1269
GTIN: 4060137039331
Category: LED Segment
Manufacturers: Adafruit
MPN: 1269
Storage Tiers: Maintain

A fun way to make a numeric display is to use a 4-digit 7-segment display. LED 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 for a variety of 8x8 and 7-segment displays. They work perfectly with the displays we stock in the Adafruit shop and make adding a bright display trivial.

The backpacks 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 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 1.2" yellow seven-segment display
5-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.

TECHNICAL DETAILS

Measurements after you mount the screen:

50mm/2" wide
120mm/4.7" long
13mm/0.5" high
This board/chip uses I2C 7-bit addresses between 0x70-0x77, selectable with jumpers.

Storage Tiers:	Maintain
Form/Type:	7-Segment
Color:	Yellow
Interface/Connector:	I2C
Display Size (inch):	1,2
Energy Efficiency Label:	LED(A++--E)
Shipping weight:	0,10 kg
Item weight:	0,08 kg
RoHS Certificate:	compliant