Adafruit CharliePlex LED Matrix Bonnet - 8x16 Green LEDs SF_XBee Boards If using bare

If using bare

and cigarette smoke

by changing the value of the resistors you can change the flashing pattern

2 channel differential ADC

Adafruit CharliePlex LED Matrix Bonnet - 8x16 Green LEDs SF_XBee Boards If using bareYou won't be able to look away from the mesmerizing patterns created by this Adafruit CharliePlex LED Matrix Display Bonnet . This 16x8 LED display can be placed atop any Raspberry Pi computer with a 2x20 connector for a beautiful, bright grid of 128 charlieplexed LEDs. It even comes with a built in charlieplex driver that runs over I2C. We carry these Bonnets in a few vivid colors this is the green LED matrix. What is particularly nice about this