Category: Circuits

Simple Two Way Intercom Circuit In this tu…

Simple Two Way Intercom Circuit

In this tutorial we are going to build a very Simple Intercom Circuit using which you can communicate two ways locally within your house or school. This project brings in the childhood memory of using matchboxes with thread to build a simple telephone. So now let’s take it to the next level by building an electronic circuit (amplifier) to transmit voice from one end to another end.

Frequency Divider Circuit

Frequency Divider Circuit

Frequency Dividers are the circuits which divide the input frequency by n (any integer number), means if we provide some signal of frequency ‘f’ then the output will be the divided frequency ‘f/n’. Frequency dividers are very useful in analog as well as digital applications. Here we are building the circuit to divide the frequency by 2 or 4.

Electrical and Electronics Calculators These electrical and…

Electrical and Electronics Calculators

These electrical and electronics engineering calculators are to help electronics/circuit designers to solve complex equations and calculations quickly. 

Op Amp Gain Calculator

LM317 Resistor/Voltage Calculator

Resistors in Parallel Calculator

Resistors in Series Calculator

Capacitor Value Calculator

555 Timer Astable Circuit Calculator

555 Timer Monostable Calculator

Voltage Divider Calculator

Ohm’s Law Calculator

Temperature Controlled DC Fan using Thermistor In this…

Temperature Controlled DC Fan using Thermistor

In this tutorial we are making a Temperature controlled DC fan using Thermistor, as it starts above the preset level of temperature and stops when the temperature return to normal condition. This whole process is done automatically.

DIY Power Bank Design on PCB

DIY Power Bank Design on PCB

TRIAC Dimmer Circuit In this project, we will use Triac to…

TRIAC Dimmer Circuit

In this project, we will use Triac to control the brightness of the AC bulb with a IR TV Remote. You can also control Fan speed with your TV remote using this Triac Dimmer circuit.

Fridge Door Alarm Circuit The name of the circuit itself infers…

Fridge Door Alarm Circuit

The name of the circuit itself infers the application. This circuit triggers the alarm if the door of Fridge is left open for the long time.

DIY Stun GunHere you can find a detailed tutorial to build your…

DIY Stun Gun

Here you can find a detailed tutorial to build your own stun gun with circuit diagram and PCB design files.

Simple LED Circuit for BeginnersGet started with electronics…

Simple LED Circuit for Beginners

Get started with electronics with this very basic circuit build on breadboard.

1W LED Driver CircuitDesign a high power LED driver circuit with…

1W LED Driver Circuit

Design a high power LED driver circuit with current limiting using ICLM317.