If you have an Etch a Sketch in the closet collecting dust, the Etch CNC may be an interesting project that could put it back into use. “I am using a retrofit machine that fit within my budget. It’s a 2-axis machine with approximately 170x130mm travel. The circuit board is my own design, using a ULN2803 per motor to supply approx. 0.3 amps per winding. The power supply is a
Once you have a look at this EM Pistol, and watch the video you will probably want to get in line to buy your own! “# Two coils are precisely pulsed in sequence (350 Amp peak) to fire a steel projectile # Two infrared sensors detect the projectile position within the firing tube # Controlled by a PIC microcontroller # Powered by 8 AA NiCd battery pack # Built-in battery
You probably remember the Shock Clock from a while ago. Well this Zedomax RGB LED Alarm Clock is the oposite of that concept, I think it would be soothing to wake up to this clock… “Okay, we have seen some really cool Light Orbs while trying to make this Music Syncing Light Orb Alarm Clock. We started with Tod’s creation and soon realize that 1 LED will not be
Have a look at this cool mouse mod by Gwildor. The mod was done in a way that the mouse is still fully functional.
You might remember the article of the in progress 6 Axis PC Controller, well it is now complete. This thing is very impressive, doesn’t look like the standard weekend DIY because of the complexity. “My microcontroller doesn’t have built-in I2C or SPI, so I needed to implement one of my own. I also didn’t have interrupt pins available, meaning my solution needed to be based on polling. When all
Seems like anything can be built out of LEGO, even a crank USB charger! “This project describes how to build a hand crank Lego usb charger with parts from a Mindstorms kit and Radio Shack. The charger uses a Lego motor to generate current which is passed through a voltage regulator and then to the usb port. It would make a great stocking stuffer for anyone who uses devices that
This bike POV uses a PIC microcontroller to control 32 LEDs. The hand wiring and soldering on the back of the board is amazing, those are all surface mount components on a standard perf board! It uses a 16f628 chip and the source code has been provided. Update: Video added “The whole thing is based on a pic16f628A, with some SMD mosfets to power the led’s. Those are very
