op amp

Non-inverting Operational Amplifier Non-inverting Operational Amplifier

Op-Amp, short for operational amplifier is the backbone of Analog electronics. An operational amplifier is a DC-coupled…

Summing Amplifier or Op Amp Adder Circuit Summing Amplifier or Op Amp Adder Circuit

Operational Amplifiers (Opamp) has so many interesting applications, and we have already created many circuits using op-amps.…

Wireless Switch Circuit using LDR and CD4017 Wireless Switch Circuit using LDR and CD4017

Have you ever feel a shock by touching the switch? It does not generally happen but sometimes physical contact with switches…

Temperature controlled DC fan using Thermistor Temperature Controlled DC Fan using Thermistor

“Automation is good, so long as you know exactly where to put the machine’’, In this tutorial we are making a Temperature…

Simple Audio Tone Control Circuit Simple Audio Tone Control Circuit

In simple language, Tone Control Circuit is the circuit, using which we can control the output of audio device. To control the…

Temperature Controlled Automatic Switch Temperature Controlled Automatic Switch

Previously we have built Temperature controlled LEDs Circuit, in which two LEDs were glowing according to the temperature. Now…

Temperature Controlled LEDs using LM35 Temperature Controlled LEDs using LM35

Today we are building a simple yet very useful circuit using Temperature Sensor LM35. In this circuit, we are going to control…

Laser Security Alarm Circuit using IC 555 and LM358 Laser Security Alarm Circuit

Security is main concern for various buildings, houses and offices. There are a variety of security alarms available in market…

Dark and Light Indicator Circuit using IC LM358 Dark and Light Indicator Circuit

In this project, we are going to make a day and night indicator (or dark and light indicator) which will indicate if there is a…

Reverse Car Parking Circuit using IC LM358 Reverse Car Parking Sensor Circuit

This car parking assistant can protect your car from any damage while reverse parking. It indicates the distance of car from…