Building a ‘Twitch Clips’ Button

Last spring before this blog was a thing, I created an “Oddshot Button” using a hacked Staples Easy Button. The button was simple – while watching a Twitch stream, a press of the button would instantly create a video clip of the last 30 seconds using the Oddshot service.

A few months later Twitch debuted their own ‘Twitch Clips’ service, and Oddshot has since fallen out of use. So I decided to remake this project to work with Twitch Clips!

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Arduino Uno NeoPixel Prototyping Board

While the final version of the footwell NeoPixel project calls for a long strip of ~60 pixels, most of my time is going to be split between programming at my desk and testing the pixels’ response to telemetry from the car.  I didn’t want to have to wrangle a large strip every time I wanted to test an idea, and I figured most of the patterns for the 60 pixel strip could be replicated on a shorter one.

My solution is this small prototyping board.  It’s a 3D printed part with mounts for an Arduino Uno, a small breadboard, and a NeoPixel stick.  The NeoPixel stick is a nifty PCB with 8 of the same type of RGBW leds as the strip I plan to use, and includes input/output pads and a resistor for the data line.  The breadboard lets me wire a 1000µF capacitor to protect the pixels from voltage spikes and allows me to hook up a second power supply if I’m reaching the power limits of the Arduino (which I should note is absolutely possible if you’re using all of the pixels at full brightness).

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