This is a cheap home disco lights circuit. Friends like listening to Rock music,would like these circuits. It enhances your music listening more colorful. [...]
If you want to build a 10 LED Chaser circuit we suggest this circuit first. It uses popular IC is a simple and affordable IC-4017_decade counter and IC 555 [...]
This is simplest automatic solar led light circuit that my son try to make it for basic small solar charger. to use 2 x AA NI-MH battery total 2.4V
Simplest Automatic Solar Light from Water Bottle
The 1.5v led flashlight circuit which also use single AA 1.5V battery. But few parts. Such as we use one transistor only. And all other parts of 5 pcs only [...]
This is first mini emergency light of my son. It is very small, use LED display when power outage,use transistor instead relay use AA battery charger.