DIY & Mini Projects Archive
This post describes how to build a High power Touch Sensor using three NPN Transistors. Two TiP3055 Transistors and one BC547 Transistor are used. This Touch Sensor Circuit is powered by a 12V DC Supply. …
This post describes how to use a 4007 Diode as a Light Detecting Sensor. The ceramic part on the top of the diode used in this has been removed as shown in the picture below. …
This post describes how to build a 3.7V Li-ion Battery Charger circuit using TC3582DA. This Charger Circuit has Battery charging indicator and Battery full Indicator. When the Charging Indicator is Battery Charge, the Red LED …
This post describes how to build a wireless Ac Line Detector using BT136 Triac. This Line Tester is made up of BT136 Triac, BC548 Transistor and Two LED. This Line Tester is used to detect …
This post describes how to build a wireless Ac Line Tester using LM324 IC. This Line Tester is made up of only one LM324 IC and one LED. This Line Tester is used to detect …
This circuit is used as voltage level indicator and short circuit protection circuit. The LED in it is used to determine the magnitude of the LED in which the Red Color LED stands for 10 …
This post explains how to control the speed of a 775 DC Motor using the 555 Timer IC. This circuit is high power and can be used to easily adjust the speed of the motor. …
This post explains how to Make an Simple ON Off button circuit using PNP Transistor and optocoupler in this circuit. I Designed A Circuit Diagram From Easy Eda Site 817 Optocoupler – 1 BC557 Transistor …
Automatic 12V Battery Charger is used to charge 12v Battery. This charger controls the battery over charge. This charger automatically cuts off the maximum voltage of the battery when it reaches. Charges the battery when …
mode changeable Led Light is to adjust the brightness of the LED light using a Micro Switch. By pressing the Micro Switch in this Circuit the LED Brightness is changed in three modes.This is an …
