This article talks about two easy and Simple Mains Phase Detector Circuit using CMOS ICs like IC 4001 and IC 4060; also they find if mains AC 220V or 120V is present in air. There is no need to touch the mains, circuit uses antenna to feel mains power in air. Circuit Working (using IC […]
Hobby Circuits
Simple IC 555 Oscillator Circuits
Simple IC 555 Oscillator Circuits is a 555 timer chip which is common and easy to use; also it is good for many projects. But for some circuits we must know how it works when not active. Two main pins: IC 555 Pinouts Here is a list that shows what each pin on the chip […]
How to Illuminate 18 LEDs from a 3.7V Battery
In this post for How to Illuminate 18 LEDs from a 3.7V Battery we need to power 18 LEDs with 3.7V battery like a small light party! Also, to light all LEDs well we need smart plan; we have to make small LED groups and connect in clever way. So use series in line and […]
Simple 1.5V White LED Driver Circuit
Simple 1.5V White LED Driver Circuit is like power translator; it takes power from battery and changes it to right voltage and current for LED. Furthermore, this helps LED shine bright and safe, but without driver LED may be it might dim or may burn. Circuit Working: Parts List: Components Values Quantity Resistors 33k, 470Ω […]
Hearing Aid Circuit using 1.5V Battery
Hearing Aid Circuit using 1.5V Battery is small sound booster, which helps people with hearing loss and to hear better. Furthermore, it picks the weak sound and makes it louder in earphone, also this circuit works with one 1.5V battery. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors are 1/4 watt unless specified) […]
Simple Gold Detector Circuit
This project is for Simple Gold Detector Circuit and it uses magnet and electric to find metal and even gold. Here, the electric goes fast back and forth and this make magnetic field in coil; and when metal come close then electric changes. Also, it is an fun project to learn about metal detector but […]