So you think that text to speech is cool? What about Morse Code to Text to Speech! This is a great example of the ingenuity found in the Cornell University ECE 476 Microcontroller Design Final Projects. “To implement our Morse Code system, we had to use both hardware and software. Since the Morse Code audio was that of a 750 Hz sine wave, we had to build a Schmidt Trigger
This PIC microcontroller Disco Light looks like it produces the same effect as the professional ones costing big dollars. “This is an early picture of my discolight effect. Because of the AGC circuit theres no need for potentionmeters for sensitivity adjust. I replaced them with trimmers. Now the microphone is on the control electronics because theres no need to place it outside the box and the possible noises from the
Carlo has put his Arduino microcontroller to work as a POV device. Anyone interested in making their own can download the sample code that he is providing. “This is my first attempt to create a persistence of vision (POV) display using the Arduino. The ultimate goal is to mount it on my bike wheel and have it display nice things while I ride. But, for now, it consist of an
Build a laser listening device for less than a fast food meal. Video after the jump. “In a microphone, sound waves (differences in the pressure of air) cause a diaphragm to vibrate back and forth, altering its resistance to an electric current. When an electric current passes through said diaphragm, the output forms a complex signal which can then be reinterpeted by speakers or a recording device as sound. The
With a laser pointer, two pager motors, a mirror and a small project box you can build a simple laser projector. The output looks like the patterns that were created by the Spirograph.
This project demonstrates the result of some creative recycling. Whimsy Inc made a Milk Jug Lamp from some parts that would have otherwise been tossed in the garbage. “The shades are old-style glass milk bottles – I cut off the bottoms with a wet saw and sand-blasted them frosty. The wiring is from old computer power cables. The wood was all scraps salvaged from my father’s wood workshop.” Via: Funniest
If you do lots of circuit board repairs you have probably looked into getting a pre-heat station. Since they are quite costly they tend to be out of reach of the home hobbyist. If you are ever considering to make your own check out the Home Made Circuit Board Pre-Heat workstation for Solder Re-work over at JXP Creations. “Circuit board pre-heat workstations are very expensive, $350.00 – $2500.00. The goal
