16x8 1.2" LED Matrix + Backpack - Ultra Bright Square Amber LEDs Shipping:1 day Headphones won’t break anything but

Headphones won’t break anything but you won’t get any sound either

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Convert just about any battery pack to 5V with VERTER - our fresh new Buck-Boost power converter

Notes: Xia mi Multi-functional Expansion Board only compatible with micro:bit V2

Because this chip supports direct USB level output

16x8 1.2" LED Matrix + Backpack - Ultra Bright Square Amber LEDs Shipping:1 day Headphones won’t break anything butWhat'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