16x8 1.2" LED Matrix + Backpack - Ultra Bright Round Green LEDs Conductive Material Tested works with: iPods

Tested works with: iPods

You can do more stuff with NFC as well

Adafruit used this to make an awesome TRON bagSoldering to EL wire is a little tricky but luckily Adafruit wrote a detailed step-by-step tutorial

Vibrational motor (buzzer) driver so you can have noiseless notifications

Works great with any Raspberry Pi that has a 2x20 connector This HAT can be used with an original Model A or Model B but requires purchase/soldering of a extra-tall 2x13 header instead of the 2x20 included

16x8 1.2" LED Matrix + Backpack - Ultra Bright Round Green LEDs Conductive Material Tested works with: iPodsWhat'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