All posts in the 'DIY projects' Category

This is a nice analog clock based on PIC16F84.The meter control by pulse width modulation (PWM). It consists of three analog meters with scales that went from 1-12, 0-59, and 0-59 and indicated hours, minutes, and seconds respectively.[more]

lucid dreaming is a phenomenon whereby a person who is asleep and dreaming realizes that he (or she) is dreaming, and continues to control the dream, acting out fantasies or gaining special powers all within the dream. [more]

Lucid Dreaming is when you are sleeping and dreaming and that you are aware that your are asleep and that you are dreaming, yet you don’t wake up. This can be great, giving you full control of your dreams, jumping off of buildings, going into space, whatever your mind can create.[more]

Martin writes:After scouring the web for digital speedo schematics, I found one, and set about constructing it. After sorting out some teething issues with the electronics, and redesigning parts of the circuit, I built a prototype, and installed it in my Datsun. It functioned perfectly in my Datsun for about 5 years, and was removed when I sold the Datsun.[more]

John Bokma writes:Some time after reading “A Powerful New Light Source for Ultraviolet Detection of Scorpions in the Field” I decided to build my own scorpion detection device using a bunch of UV LEDs instead of buying an UV flashlight. I ordered fifty 5mm UV LEDs (light emitting diodes) at the website of LSDiodes.[more]