Hello, this instructable is about Arduino LED Pi On Pi held back by the Pi project.

So essentially it is a decorative slightly retro-looking blinking LED lamp which is in the shape of Pi (LEDs are in the shape of Pi, and it's all Pi theme).

Supplies

Arduino (in this projects I used Arduino Nano)

18 LED-s

100-ohm resistor

Wires

PCB Board ( I used 5 cm by 7 cm)

Power jack adapter female connector (not necessary if Arduino is powered via USB port)

MDF Board 5cm x 8cm

Screws

Hinge

Popsicle sticks

Superglue

Spraypaint

TOOLS: Soldering iron, solder, pliers (wire cutters), utility knife, drill and drill bits, belt sander (optional, files are also fine, but it is faster with belt sander).

Step 1: Arduino LED BLINKING PI

Before soldering this circuit it would be better to test it on a breadboard.

This is the main part of the build (and also coolest, it could be a project on its own). Start by placing Arduino Nano somewhere in the middle of the board, and then arrange LED-s around it to form a Pi but make sure that you place them in the same order (anodes (+) on one side, cathodes (-) on the other side). Then bend the leads and connect all LED cathodes (-) and anodes (+) are going to Arduino pins according to the schematic. And then add a resistor between the LED-s cathode (-) side and Arduino GND.

pi.ino
Download

Step 2: Preparing MDF Board

Spraypaint board on both sides ( Spraypaint that I used had copper-like color)

When the paint dries cover the side where you would like to place the Arduino Pi board from previous steps.

Step 3: Drawing Pi, Cutting It Out, and Then Paint It

After you carved out the Pi spraypaint it.

Step 4: Popsicle Sticks and Hinge Pi

This part is pretty straightforward. Arrange popsicle sticks accordingly then glue them in place (I used superglue). And then shape them using a belt sander or files or something else to form a Pi.

The last part in this step is to connect Popsicle sticks Pi with hinge using screws.