Happy *BLEEP* Valentines!
From the MAKE Flickr pool Dr. Bleep sends out heart-day greetings with this romantic shot of a Thingamagoop getting snuggly with a Casio SK-1. –Link
Month: February 2008
DIY TO-92 heatsink
All out of TO-220’s? Thinking maybe you can eke enough performance out of a smaller transistor? Want to squeeze a bit more current through those inexpensive TO-92 package transistors? Then add a small metal heatsink. I made this for a PWM DC motor driver, as some 2N2222 bi-polar transistors were handy. Of course, we should […]
2-channel RF Transmitter
Here is how to make a 2-channel RF transmitter and receiver that works on the 418 MHz frequency. Unlike IR remotes, this one can work through walls and at a greater distance too. It’s perfect for closing the garage door or anything else that you are too lazy to get up and do. – Link
Free lens hood templates
The lenshoods website has a terrific source of FREE PDF templates of various lens hoods for your camera. They have the standard “rounded” or petal versions, and you can even design your own. These would be a great addition, or backup, to any photographers set up. – Link
YALBlinkie – (Yet Another LED Blinkie project)
Daqq writes – I wanted to play with a simple RGB LED, to see how colors would mix, change and stuff. So I build my own LED and “controller”. It fades in and out a set of 9 LEDs (3 RGB LEDs) into random values. Yet Another LED Blinkie project – Link.
Post-it mural
Michael Karnjanaprakorn spotted this while walking around town- a mural made out of a lot of Post-it notes. – [via] Link. Related: OUTDRA.WS – The most useful DIY post-it note – Link. Post-It Art Show – Link. How to make a Post-it Mosaic – Link.
Build the handheld “8038 Audio Generator”
The Thomas Henry 8038 Audio Generator device – The audio generator operates in the the range of exactly 20 Hz to 20 kHz. It features sine, triangle and square wave outputs. The frequency control set consists of a coarse and fine tune arrangement – the coarse control obviously will move the frequency in greater increments, […]