Light meter by LM334

Monday, January 16th, 2012

The light meter is a tool, measure the quantity of light, widely used to a photography, To decide the correctness of the exposure. Sometimes, we are use with other works, such as my son likes to use in science experiments, which do not need to have high quality. This simple light meter in figure 1 [...]

Home Accent Multicolor LED Lighting

Thursday, November 10th, 2011

More detail Now my son is interested in a flashlight or LED colors. I searched a some ideas in the Internet. The great lighting kit that I found very interesting. It is adorned with multi-colored lights, to change the atmosphere of the rooms in the house, and controlled by remote control, very modern, the price [...]

Infrared transmitters by LM3909

Friday, September 30th, 2011

This is an infrared transmitters signal circuit that is small size and using a power supply 1.5V only. by main electronic part are two the LM3909 (a LED Flasher Oscillator IC) Normally, we tend to put it to use as a simple flashing light circuit. Using a 1.5V low power supply, it’s working now, Easier [...]