Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green Spedizione:4-6 Giorni DFRobot URM09 is an ultrasonic

DFRobot URM09 is an ultrasonic sensor specially designed for fast ranging and obstacle avoidance applications

This motor driver and power distribution board is designed specifically for the Romi chassis as a convenient way to drive the chassis's motors and power the rest of the electronics that make up your robot

5 hours until running out of the battery

6-inch capacitive touch display

Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green Spedizione:4-6 Giorni DFRobot URM09 is an ultrasonicWhat'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 64 LEDs you need 16 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