Cellphone Car Ignition
Remote-start your ride from any distance, sans key fob.
Resistor
Game Show Buttons
In this project, taken from Charles Platt’s book Make: Electronics, we’re going to breadboard a fairly complex circuit using 555 timers and an OR logic gate. Using these and some other, common components, we’ll build a game show button system. When one button is pressed, it automatically locks the other one out, until the quizmaster […]
Solar Buzzing Beetle
In these instructions, I teach you how to make a vibrating little cute buzzing humming beetle robot. This is great for beginners because of the simple circuit and low parts cost.
Eyeboard Electrooculography (EOG) System
Note: Be sure to check out the Kickstarter campaign of the Eyeboard project. This is an inexpensive yet reliable human-computer interface that detects eye movements using electrooculography (EOG), a biomedical technique based on picking up signals from electrodes placed around the eyes. EOG interfaces let users who can’t manipulate a mouse or trackpad with their […]
Kitty Twitty Cat Toy
About 2 months ago, after years of begging and pleading from my family, I reluctantly agreed to get another cat from the local shelter. We already have a menagerie of beasts that share our home, but for some reason they felt we needed another. I admit, I do like our new addition to the family. […]
Build a Lawnbot 400
I have always hated mowing the lawn. I was the guy who only mowed when the grass got to be 6″ taller than the neighbors’ lawns — not because I don’t like my neighbors, but because mowing was such a pain. After being hit by one too many rocks, I decided I no longer wanted […]
