Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - Blue _MAKE_SENSOR_ACCELER Works with all models of

Works with all models of Raspberry Pi old and new

lightweight Feather form factor

the Servotor32 controller uses the same chip as the Arduino Leonardo

The Bluefruit LE Friend is a USB-to-BLE adapter that lets your computer communicate with BLE-enabled devices like phones or tablets over a simple UART connection

Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - Blue _MAKE_SENSOR_ACCELER Works with all models ofWhat'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,