Flexible Adafruit DotStar Matrix 16x16 - 256 RGB LED Pixels [Discontinued] _RPI_USB_KEYB The battery voltage is routed

The battery voltage is routed through a divider to an analogue pin

Female header requires soldering

Raspberry Pi 2 or Raspberry Pi 3 our easy-to-follow instructions should help you get started

see the HD44780 datasheet with the detailed commands for control

Flexible Adafruit DotStar Matrix 16x16 - 256 RGB LED Pixels [Discontinued] _RPI_USB_KEYB The battery voltage is routedFor advanced DotStar LED fans, we now have a bendable, Flexible 16x16 Dotstar LED Matrix! Control all 256 ultra bright LEDs using only two microcontroller pins, set each LED as you wish to scroll messages or draw little images. This matrix has a thick flexible PCB backing that can be gently bent and curved around surfaces These are the same integrated LEDs that are used in our new fancy DotStar strips. This tiny 5050 (5mm x 5mm) SMD LED is the most