The perfect stocking filler for any geek with an interest in electronics and Raspberry Pi. Build it into a Santa detector, use it as an advent calendar or just have it twinkling beneath the tree. This 3D Christmas tree add-on board for the Raspberry Pi has 25 LEDs, each controlled by its own GPIO pin. The tree can be used with any 40-pin Raspberry Pi and is especially cute on the Raspberry Pi Zero W! The ultimate Christmas gift for the Raspberry Pi enthusiast in your life. There is no soldering required for this kit, we've done it all for you. Simply snap the pieces out of their PCB frame and plug into your Raspberry Pi! Includes 1x 3D Xmas tree - Ready to rock & roll! Simply snap out of the PCB frame and plug into your Raspberry Pi! *Warning - Do NOT place the Xmas Tree on your Raspberry Pi backwards... Bad things will happen!* Assembly instructions Assembly instructions are available here! Software The easiest way to control your XMAS board is with GPIO Zero. This is pre-installed in Raspbian Stretch sudo apt-get install python-gpiozero python3-gpiozero This example sets all the red LEDs to flicker randomly: from gpiozero import LEDBoardfrom gpiozero.tools import random_valuesfrom signal import pausetree = LEDBoard(*range(2,28),pwm=True)for led in tree: led.source_delay = 0.1 led.source = random_values()pause() Schematic Pin Numbers Download the Schematic Here Pin numbers used Star = GPIO 2 Tree Lights = GPIO 4, 15, 13, 21, 25, 8, 5, 10, 16, 17, 27, 26, 24, 9, 12, 6, 20, 19, 14, 18, 11, 7, 23 and 22 Physical pin #6 is used for GND
