16x8 1.2" LED Matrix+Backpack UltraBright Round YellowGreen LEDs motor 5V powered outputs - The

5V powered outputs - The onboard darlington array can supply up to 500mA per channel (but you'll be limited to driving around 1A total from the board)

they use a Pro Trinket 3V or 5V

Because we control everything about the product

and so we aren't at the mercy of any third party vendors who may or may not be interested in keeping their code up to date or catering to our customer's needs

and Fritzing object available in the product tutorial

16x8 1.2" LED Matrix+Backpack UltraBright Round YellowGreen LEDs motor 5V powered outputs - TheWhat's better than a single LED? Lots of LEDs! And what's better than lots of LEDs? TWO TIMES AS MANY LEDS!!! With the 16x8 LED Matrix Backpack we've doubled your project's matrix capacity by making it super easy to get two separate 8x8 matrices onto one handy board! Matrices like these are 'multiplexed' so to control 64 LEDs you need 16 pins and to control 128 LEDs, you'd need 24 pins. That's a lot of pins, and there are driver chips like the MAX7219