Matrices like these are 'multiplexed' - so to control all the 128 LEDs you need 24 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can help control a matrix for you but there's a lot of wiring to set up and they take up a ton of space. Control a matrix without tons of wiring with these adorable LED matrix backpacks., It's called a Bicolor LED, but you can have 3 colors total by turning on the red and green LEDs, which creates yellow. That's 3 colors for the price of 2!. 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, 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/bicolor (or a combination, such as four mini 8x8's and two 7-segments and two bicolor, etc) on a single I2C bus. Kit includes: Fully tested and assembled LED backpack., 1.2"" Bi-color 8x8 LED Matrix. 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.
1.2" 8X8 Red/Green Bi-Color Led Matrix With I2C Backpack
Product Information Specifications for 1.2" 8X8 Red/Green Bi-Color Led Matrix With I2C Backpack by Adafruit Industries Below:
1/2" Ceramic Insulation Blanket for QuadraFire Wood Stoves & More. 25" x 24" x 1/2" by Liberty
Fits the following Wood Stoves - 1900, 2100 ACC, 3100 ACC, 4300 ACC, 4300 pre ACT, Cape Cod, Cumberland Gap, and Yosemite., Fits the following Wood Inserts - 2100I, 2700I, 4100I, Bodega Bay and 5100I, Must be cut with a sharp utility knife to fit most models. Instructions included., 2300 Degree Heat Resistance - High Temp., Quality, US Made, High Density (8 pound cu.ft.) Style Ceramic Blanket exceeds specifications.
1.8" 4 Digits LED Clock Support Countdown/up Function in Minutes Seconds IR Remote Control by DLC
Digit Material - High Quality LED seven segment., LED Lifespan - 10 years., Brightness - Ultra brightness for indoor only., Cabinet Material - Aluminum housing plus acrylic red transparent cover., Input Power - 100VAC-240VAC.
10 Inch Jesus Carrying The Cross Cold Cast Bronze Sculpture Figurine by US
Perfect gift for those that love Classical, Great craftmanship., Measurement: W: 10, Material: Cold Cast Bronze, Information: Sculpted and handcrafted to the finest detail in cold cast metal (Bronze/Pewter) finish.
1.8" Large Green Digit Superloud Alarm Clock, ATC1810G by TimeVision
Large Time Display is easy to read, Hi/Lo Alarm switchable at your option, AC powered, 9 volt battery backup in case of a power failure (battery not included), Size: 8.25 inches (width) x 3.5 inches (high) x 2.75 inches (depth) approximately
10 Hour Lime Green Unscented Votive Candles Set of 72 by Light In The Dark
Manufacturer: Light In The Dark
Brand: Light In the Dark
Each candle is 1.5 inches in diameter and stands 1 inches tall;Professionally packed to arrive quickly and undamaged;Ship out the same day if orderd before 4:00 pm;Packed in sets of : 12 , 36 , 72 , 288;Made in the USA