Arduino-Controlled Night Light
Using a light sensor, some wire, and LEDs you can easily create an automatic night light that will turn on when you turn off the lights.
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Wire
Light Up a Candy Dish
You can use my Light Up Halloween B circuit board to light up a candy dish or anything you desire. This one is for Halloween with a skeleton wreath and a pumpkin bucket for the dish. In this circuit I am using what I call an interrupter. It has both the infrared detector and emitter […]
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Mario Coin Block Lamp
A few days ago, a friend told me that he saw a similar project on ThisIsWhyImBroke.com, and asked me to build one. Unfortunately, like my green lantern ring, I forgot to take a picture of the one I made for him so I built a simpler but less good-looking one of my own. This guide […]
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Hear with Ultrasound Using a TL494 as a Flanagan Neurophone
Patrick Flanagan invented the “Neurophone” over 40 years ago. His original patent (US3393279) was basically a radio transmitter that could be picked up by the human nervous system. It modulated a one-watt 40kHz transmitter with the audio signal, and used very near-field antennas to couple it to the body. It also used extremely high voltages. […]
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Monkeysailor’s Photo Lab
Make your own Arduino-controlled color film processor.
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MonoBox Powered Speaker
Learn how to build inexpensive powered speakers that amplify the output of your headphone music player. It may be small, but this speaker can still rock!
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Making Six Channel High Powered LED Controller Shield
This project uses IRLB8721PbF MOSFETS. These particular devices are good for the Arduino because the base current required to fully open the gate is less than 5v. I chose to use a power supply case to house this project. The built in fan will supply plenty of airflow over the heatsinks attached to the MOSFET’s. […]
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