Projects, Circuits, Ideas...

1. Rechargeable Led Flashlight



2. Infra Red Vision System for a Toy Car



3. Electronic Defense System EDS / Sistema de Defesa Eletrônica SDE



4. Light Chaser
   - A Modified MOVIT Robot: it seeks the brightest light and runs towards it!



5. 3 Phase - 3 Wire Phase Sequence Indicator
   - A very useful gadget to find out the order in which the phases are appearing.



6. Underground Radio
   - How to use conductive soil (underground water table) to transmit audio or radio signals.



7. Keychain Laser Driver
   - Circuit Description.



8. Laser Link
   - Transmitting audio or data over a laser beam (105 kHz carrier) !!!



9. 1.5 Volt Strobo with a Kodak Max Disposable Camera
   - How to modify a Kodak Max Disposable Camera Flash Circuit and build a 1.5 volt supply STROBO.
   (Yes! just using a 1.5 volt AA alkaline battery!!)



10. Bouncing Light- 9 Output Up & Down Counter
    - A nice circuit to make a 'scanner' light that sweeps back and forth. You may replace the light by any other device you wish.



11. White Led Flashlight - Modified Solar Flashlight
    - A modified Solar Flashlight now converted to White Led - uses only 2 AA batteries!



12. Stereo Volume Control
    - Tired of Bad contact and scratches on that volume control?

new projects soon!

Last Update
January 2007