16x8 1.2" LED Matrix + Backpack - Ultra Bright Round Green LEDs Category_Display & LED/Accessories The SIM808 with Leonardo mainboard

The SIM808 with Leonardo mainboard is the latest development board for multi-purpose applications

but diffused so that they are visible from all angles

If you are looking for a bigger robot that is better at scaling inclinations and traversing larger obstacles

Using the Regulator

you'll be able to play immediately after simple assembling and programming

16x8 1.2" LED Matrix + Backpack - Ultra Bright Round Green LEDs Category_Display & LED/Accessories The SIM808 with Leonardo mainboardWhat'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