Sean Michael Ragan from Make built this Micro FM Transmitter. If you are looking to get some audio onto the radio over a short distance this project could be for you. The copper layer of the board looks very cool. “This circuit is commonly credited to Japanese multimedia artist Tetsuo Kogawa. It takes audio input through a 1/4″ phono jack and, constructed as shown, without the optional antenna connections, will
This solar tracking system uses an antenna motor which is normally used to spin an old school roof mounted antenna around. The structure is home made from some satellite dish parts and unistrut as the main frame of the solar panels. I was expecting to see several light sensors and some circuitry to see where the sun was and constantly follow it like we have seen before. But fanman1981 actually
These videos aren’t exactly directly tech related but many of us will have ideas which will require hiring employees to make them come to life. At that stage you will find the information useful. Via: Procrastineering and The Amp Hour
How do you detect the actual current from your 22,500uF, 450VDC capacitor bank when you pulse discharge it? Well Norman from Procrastinatus shows us his method. Inductive Current Sensing is done using a Rogowski coil which is wrapped around the high current output of the capacitor bank. A DSO is used to capture the data so the short event can be analyzed. Norman entered this into the Tektronix scope competition
The 555 Contest that we told you about back in January is now over. Chris and Jeri will be on the air later today announcing the winners live. “Jeri and I have decided to announce the winners on-air, on Wednesday, April 20th. We will be uStreaming the entire show and will have a chat room running the entire time. This link will get you to the IRC chat and the
I thought I had seen the coolest way to kill the data on a CD which was linked on this article. But watch the video above to see the new coolest way to kill a CD. A high voltage is generated on either side of a spinning CD and it jumps the gap by using the path of least resistance which in this case is the spinning CD. Of course
This 3d iPad Demo is future of portable media! Laurence Nigay, a professor from France was inspired by the 3D work done by Johnny Lee who we interviewed a few years ago (blogs here and now works for the Google). “We track the head of the user with the front facing camera in order to create a glasses-free monocular 3D display. Such spatially-aware mobile display enables to improve the possibilities
