Quick and easy guide on modding the disposable cameras for reuse – “Turn a “disposable” 10 dollar digital camera from RitzCamera, CVS, or Walgreens into one you can use over and over, just like a normal digital camera.” – Link. Related: Tons of other disposable camera projects – Link.
Laser transmitter from Electronics Australia – “Laser based projects used to be expensive, until the development of solid state lasers. This project is designed for the entry level laser experimenter. The circuit allows any two computers with serial (RS-232) communication capability to communicate over 200 meters using a laser beam. A low cost transmitter only […]
Alan writes “This article goes through the steps required to photo etch your own copper clad circuit boards. There is a relatively small amount of hardware that is required and the steps are quite simple. If you have done the toner transfer method in the past why not move to the next level?” – Link.
Skot123 writes “This year my eldest sons Cub Scout pack had an open division. I believe the cars that the kids race should be their own creation. So after serving as a safety monitor for the creation of the true car. I created a video car with my younger children.” – Link.
Tim has a nice guide on knife sharpening, it’s not only useful but extremely funny- Link.
Finally, a high powered PIC controlled marshmallow gun – “This device uses a PIC12F629 to create a burst of 30 high voltage pulses. The PIC activates a 1000 volt N-Chan FET driving a standard ignition coil. After the ignition, the PIC goes dormant until activated again. Most of the electronics, including the battery and momentary […]
BVnursery is using LEDS to grow plants…. “he target of the project is to develop an inexpensive, effective method of providing light to plants using only leds. This unit is designed to light standard horticultural starter trays measuing 10 x 20”. The logic follows several paths. Almost zero heat, almost zero waste due to proper […]
