 Dimitri, Frank, Kevin and Robin from Eectronique have sent in some details of a project that they have been working on. They had an old early 90’s LED matrix sign and wanted to make it work with a Raspberry Pi. The circuit layout is what you would expect from that era. Read More: Old Display Reverse Engineered to work with a Raspberry Pi Google Translated version. “I was
Rich Olson shows us how he was able to laser etch the trace pattern onto some copper clad PCB using his laser cutter so that he could later chemical etch the unwanted copper away. I have tried something similar and was not successful since I was not able to line up the front and back of the PCB well enough for pads and vias to work. Rich uses a
If you have trouble getting out of bed a bed shaker alarm might be a bit extreme, you might be just fine if there is a bit of money on the line if you sleep in. This Money Shredding Alarm Clock Project might be just what you need to give you some inspiration. With this clock you are given the beep warning to get up and switch off the
Jiayuan Wang and Sheng Zhang from Cornell University built this Wireless Voice-Controllable Smart Home Project for their ECE 4760 Final Project. “There are two CPU in our project, ATmega328 and ATmega1284. We set up the wireless communication by two Xbee chips. One of them connects with ATmega328 working as the transmitter to transmit the signal, another one is connected with ATmega1284 to be the receiver. We pick up ATmega328
 Check out this cool 3D Printed Stepper Motor that Christopher Hawkins made. You can see in the video that it can move quite quickly and not loose any steps. This design would be idea to teach how stepper motors work. Via: Hack a Day “This is a programmable stepper motor and driver that I made out of some nails, magnet wire, neodymium magnets, a digispark microcontroller, and a 3D
Jon Wise demonstrates his Raspberry Pi 3D Printer, he is using a pen in the demo but it can use an extrude to print items. The mechanical movements leek very complex when compared to a standard XY table that is controlled using 2 stepper motors. The Pi has enough number crunching ability to get the job done though. I can’t wait to see this printing a complex shape, the
While watching the video I was wondering why there was so much complex electronics for the AZIZ – LED Microscope Illuminator Project. I was thinking that a simple dial to vary the intensity would be all you would need. If you are thinking the same thing have a look at the video starting around the 4 minute mark. By having modes that allow you to spin lighting patterns and
