Piezo buzzers can be found everywhere, next time you throw out an old smoke detector be sure to remove the piezoelectric element from it and stash it in your parts bin. If you want to monitor sound with a piezoelectric element it’s not that easy since the voltage produced by the device is so small. Nerd Kits has not only provided a circuit to help out they also walk
Cornell University has just completed their ECE 4760 Designing with Microcontrollers Final Projects. There are lots of great projects, this 3D Laser Scanner by Ryan Dunn and Dale Taylor looks to be a flexible scanning system. Code and schematics are provided so that you can learn from their project. "Our project implements the hardware necessary for a laser triangulation 3D scanner as well as a PC user interface for
Here is a fun project that is sure to spice up your next party. 🙂 Ercost60 built this cool Hot Wheels Basic Stamp Margarita Dispenser, watch a few cars zip around and get a drink from the gas can. "A Parallax Basic Stamp 1 monitors the progress of the stunts using microswitches added to the accessories. If the track is properly set up (requiring a hint of sobriety) and
If you want to go under the sea, this Parallax Submersible ROV project by Richard will allow you to go where most electronics don’t want to go. With a goal of looking at the bottom of a lake in Michigan and watching some fish I think this project will do very well. "This ROV is tethered to the surface with a 6 conductor Ethernet cable and nylon support line.
Every time I see a microwave beside the curb I think of all the things that could be made with the MOT (microwave oven transformer). Bob Davis just finished some of his 2400 Volt Soda Can Crusher experiments that uses a MOT, some large caps and a handful of other electronics. The crushing results are a bit more dramatic in one of his last can crushing experiment which used
There are radio designs that require no batteries. Rick Crammond has been playing with a radio called the Beta Blocker Spirit Radio. Have a look at his other crazy radio experiments here.
NerdKits demonstrates how make a Microcontroller Real Time Clock using system Crystal Oscillator by using system interrupts. "This project demonstrates a minimal piece of code that shows how to use interrupts, as well as the ATmega168’s onboard Timer/Counter modules, to divide the 14745600 clock cycles per second down to just 100, and to keep time accurately in seconds."
