This DIY Audio Spectrum Monitor by a Japanese engineer looks and works great, there are full construction details and code available on his site. You have to watch the video, it’s very impressive. Video after the jump. “This is an experimental work to monitor a spectrum pattern in radio band, and is a continuous project from Audio Spectrum Monitor. To analyze the spectrum of an input signal, I chose an
This Guitar Tuner and Preamp project built by Rob uses a PIC microcontroller and an old stereo to allow visual tuning of a guitar. LEDs indicate how well tuned each string is. “I recently had to make a guitar amplifier and thought it would be cool to include a PIC based guitar tuner. I had an AIWA 3-disc stereo lying around with a non-functioning CD player. The tuner and tape
Check out this cool hack of the Simon game from Sparkfun that the guys at I make Projects made. If rings of plexiglass were used a target practice game could be made using a small microcontroller. Video after the jump. “This is a Simon game from Spark Fun Electronics which you play by shooting plexiglass plates with an Airsoft gun instead of tapping buttons with your fingers. It’s fun and
Balancing One-Wheeled Scooter Link “It’s very similar to a snowboard to ride, requiring no user input other than the movement of your body mass. Leaning forwards and backwards controls the velocity and moving your weight from heal to toe controls the turn radius. It’s easy and very intuitive to ride. The main controller is a PIC16F876A running at 20mHz. Pitch angle feedback is provided by an ADXRS300 Rate Gyro and
This project was constructed by Apnoe, a member of the Hacked Gadgets forum. His entire article has been reproduced here since he doesn’t have a Web server that is on 27/4. If you have any questions you can ask them here or email Apnoe directly at apnoe at gmx.de. “This is my self-assembled doorbell. I wanted a doorbell that can play a audiosample of my own choice and not that
Back in November we featured an article where Wicked Lasers took new Blu-Ray players to harvest the laser. It looks like there is now a cheaper option. Leslie Wright used a replacement laser reader assembly as the source of the Blu-ray laser for his Blu-ray laser project. “I recently purchased a SONY playstation-3, replacement Laser reader assembly, with the sole intent of taking it apart, for the violet Laser diode.
Check out this great episode of Amateur Logic TV. Video after the jump. “Jim discusses two Network Tools that everyone already has. George digs into the junk box and comes up with a 9-volt battery clip tip. Tommy talks about using the Burn and Dodge tools to get better detail out of your photos. This month’s spotlight is on the Basic Stamp Microcontroller. We tell you what it is, and
