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Random Projects

Posted: April 17, 2020

Introduction

Here's a page for just a few random projects I made videos for but aren't interesting enough to do a full write-up for.

Related Projects @mikekohn.net

Artwork: LED Pumpkin Candle, XOR Gate, Motion Eyes, Clay Figures, WS2812 LED, LED Panel, Half Adder, Gingerbread House, Cyborg Chicken, Electric Cat Fight Iced Electronics

Underwear Sail Car

As an alternative to brown energy this is my contribution to green energy. The concept here is simple: servo motor used to rotate the front wheels for steering, XBee radios so the remote control can send commands, a couple MSP430 microcontrollers, and a wind sail made from Fruit Of The Loom underwear.

https://youtu.be/RedKdMsxKl4

Remote Controlled Rollerskate

This was going to be a bigger project, but I kind of got sick of working on it halfway through. This is actually the same circuit as the underwear sail car with a little programming difference. This circuit uses a Pololu motor driver instead of a servo to control two motors on the back of the skate connected to two wheels. I had a really hard time with this because the skate wheels were slippery and couldn't get a grip on the wood floor of my house. I wrapped them in cut-up balloons and it helped. On the carpet at work, as seen in this video, it worked.

https://youtu.be/EZnX0HuU_Tk

Propeller Car

I had a set of 4 little quadcopter motors that I used on the Chicken Bone Quadcopter project. After that project was "done" I took the motors with propellers off and hooked them up to a small wood structure with Pololu wheels and metal casters on the front. Same casters I used in the Electric Cat Fight project.

https://youtu.be/ey4Z86-B0uE

Social Distancing Enforcer

Here's a Social Distancing Enforcer Circuit. Going to take this with me to the grocery store and push that button anytime someone gets too close to me.

https://youtu.be/O41rdRfGS4k

Invisalign Gesture Sensor

My dentist set me up with some Invisalign thingies. I put a new tray in every 2 weeks for 20 weeks and at the end I have straight teeth. After week 1 I didn't know what to do with the useless trays so I made this thing using some i2c gesture sensor... and some clay.

https://youtu.be/Vc5_zrf_uYo

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