Op-amp Circuits

Op-amp circuits based on Op-amp IC LM358. Explore electronics circuits and projects based on op-amp IC LM358.

  • IR Based Security Alarm Circuit

    IR based security alarm circuit can detect any movement and trigger the alarm. This circuit is very useful in homes, banks,...

  • Infrared Sensor Module Circuit Diagram

    Sensors are very important part of electronics, especially in Robotics and Automations. Sensors in electronic devices make our...

  • Audio Amplifier: Small Loudspeaker for Computer or Cell Phone

    Small Loudspeaker is a fun project to do, you can connect it to your Cellphone or Laptop through a 3.5mm audio jack and can...

  • 2 Digit Object/Product Counter Circuit

    Object counters or product counters are important applications used in industries, shopping malls, etc. They count objects or...

  • LM386 Based Audio Amplifier Circuit

    Simple Mic audio amplifier can amplify sound that is given from Microphone. This circuit can be used as “Small mic and...

  • Dark and Light Indicator Circuit using IC LM358

    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

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

  • Battery Monitor Circuit

    Sometimes we face a common problem when making any project related to battery or power supply - we don’t know about battery is...

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