Posted March 9, 2016 by Chris

"I have experimented with GPIO on the Raspberry Pi, just turning an LED on and off here. But since then Ben Croston has improved the RPi GPIO Python library to do most of the work in C and I can confirm that it is a lot faster. Driving servo motors requires precise timing, so I decided to see how the Pi would perform this task."

Posted February 9, 2016 by Chris

"Dual Motor L298 H-Bridge Control project can control two DC motors connected to it. The circuit has been designed around popular dual H-Bridge L298 from ST. This circuit has current sense resistors for both H-bridges to provide voltage which enables this board to use in stepper motor applications."

Posted February 7, 2016 by Chris

"All of our software, hardware plans, and documentation is free for you to download and improve upon. Our Mission: Grow a community that produces free and open-source hardware plans, software, data, and documentation enabling everyone to build and operate a farming machine. Our Vision: Create an open and accessible technology aiding everyone to grow food and to grow food for everyone."

Posted February 1, 2016 by Chris

"This section explains the details of the hardware and software used to create the eye-tracker controlled robot arm. Hardware: USB LEGO Cam, Simulated Eye, and LEGO Mindstorms NXT Robot Hand"

Posted January 27, 2016 by Chris

"To spice up the office around Halloween I decided to make a molded zombie arm that takes pictures of zombie lunch and posted them to the Twitter account @ZombieSelfie."

Posted January 17, 2016 by Chris

"My system doesn’t require plumbing alterations, and it transmits the information via my home wireless network, so I can view water use on a connected device anywhere in the house. Now when my teenage kids take profligate showers, I can berate them with quantitative measurements!"

Posted January 15, 2016 by Chris

"High Current PWM Halogen Dimmer controller project is designed around SG3525 IC and High current MOSFET. Project can handle lamp up to 5 Amps (10Amps Possible with big heat sink) and supply 12-24V DC .Ideal for Halogen Dichroic Lamp or Halogen Lamp."

Posted January 3, 2016 by Chris

"Is a DIY cat (or dog, or human) feeder controlled over the web (though not over the public Internet for now). There are two different feeding methods: instant feeding with the click of a button, or scheduled feedings (using a command scheduler like cron)."

Posted December 28, 2015 by Chris

"Remote garage door openers are great but there were times I need access to the garage and did not have the remote with me. I therefore designed a simple keypad with 4 digit access codes to allow myself, my family and friends to gain quick access to the garage when a remote is not at hand."

Posted October 27, 2015 by Chris

"Every haunted well needs a trained demon-summoning witch. Our haunted well has just the thing. A witch standing nearby, outfitted with the latest electronics. She’s sporting a uMP3 MP3 playing card, plus a Scary-Terry audio servo driver tied to her skull-head. And of course she’s also customized with a pair of (diffused) green LED eyes that will also flash as she speaks."