This easy LED circuit with Joule Thief can make light from a weak 1.5V battery, also it works with white, blue and UV LEDs. Further, we only need a low power battery like 1.2V, even better the LED still glows even if the battery is very low like 0.4V. So now we can use old […]
Mini Projects
Simple Solar Battery Charger Circuit with IC LM317
To begin with, this article show how to make charger which uses sunlight to charge 12V battery like car or some toy. Normally, charger need electricity, but here it uses solar panel, so it is good for place where no power is there. We call this circuit Simple Solar Battery Charger Circuit with IC LM317 […]
Simple Solar Powered Plant Watering Alarm Circuit
Simple Solar Powered Plant Watering Alarm Circuit tell us how to make small device that gives water to plant when plant need it. Furthermore, there are many ways to use solar energy but it should be clean and should not cost much, but the device used in this circuit is mix of solar power and […]
Simple Water Level Indicator Buzzer Circuit
This Simple Water Level Indicator Buzzer Circuit show how much water is inside the tank and also it make beep sound like alarm when water become too high or too low. Also, we can make this circuit using transistor and some other small electronic parts, however, it only beep when water touch two metal pieces […]
Simple Rain Detector Alarm Circuit
To begin with, this Simple Rain Detector Alarm Circuit helps prevent wet clothes during sudden rain by showing you how to build an easy rain detector alarm. Next, this circuit uses sensor to know when it is going to rain and then it make sound to give warning, so we can take umbrella or bring […]