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1mm Panel Jack
but it's more than just a servo
Sort of like a very short range bluetooth that doesn't require authentication
PCB CAD files and Fritzing object available in the tutorial
As of March 14
16x8 1.2" LED Matrix + Backpack - Ultra Bright Round White LEDs LEDs 1mm Panel JackWhat'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