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Persistence of Vision (POV) Wands are a fun way to create interesting long exposure photographs and light displays. The wand consists of a single row...
The first thing you'll want to do is make a mount for your project. I laser cut a piece of acrylic into a wand shape, but you could use a piece of pl...
Thread the leads of all 20 resistors through their holes on the wand mount.
Each resistor is connected to an LED on one side and ground on the other. Bend one of the leads of each resistor so that they are touching each other...
Solder header pins to the pins connections on the arduino protoboard. Make sure you are soldering them on the correct side! For best results I recom...
Solder the toggle switch onto the middle of the arduino proto-shield as shown in the images above. Solder a jumper wire between the side lead of the ...
Solder the red lead of the battery connector to the middle pin of the switch. Solder the black lead of the battery connector to the ground pin of the...
Attach wires to each of the LEDs on the wand. As you solder each connection, clip the excess lead off the end of the LED (figure 3).
Strip the ends of each of the LED wires and connect to the pins of the arduino proto-shield. Be sure to follow the pin connections below correctly, I...
Strip both ends of a (preferably black) wire and connect the unclipped resistor lead to a ground (gnd) pin on the arduino shield.
Download the POV wand firmware below and upload it onto your arduino board. If you have trouble uploading be sure that nothing is connected to digita...
Use zip ties to secure battery and arduino to wand mount. Flip switch to power on and off. You should read the words HELLO WORLD on startup.
Figure one shows the line of text you will need to edit to create your own messages. Replace the worlds HELLO WORLD with any message in all caps with...
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