Content for LM358

How to Make a UART to Cassette Tape Interface

“Before hard disks and floppy drives were widely used by the public, cassette tapes played a vital role in the world of information storage. In this project, we will learn how to build a simple UART to tape interface so …

Digital Touch Sensor Using LM358

“Sensors are the best thing to work around with DIY electronics and this is the second instructable of a series of instructables which creates different sensors compatible with various microcontrollers. In the previous instructable I showed you how to build …

DIY Short Circuit (Overcurrent) Protection

“In this project I will show you how to create a simple circuit that can interrupt the current flow to a load when the adjusted current limit is reached. That means the circuit can act as an overcurrent or short …

Arduino Keyboard Piano With 8 Bit R2R DAC

“I used an Arduino to generate sin waves of the appropriate frequency which are then triggered by the keypad.This project uses an external speaker to play the tones. The arduino sends audio data via AUX cable.Features-Plays the basic …

How to Make IR Security Alarm & a IR Detector Using LM358

“In this project i will show you how to make a IR Security Alarm and a IR Detector with the same circuit, just with little modification. For the indication we have included both Buzzer & LED.”

Adjustable constant current source

“When comes to electronic designing and testing, adjustable current sources facilitates to simulate “load” on circuit(s). The most common use of “constant current source” is to test performance of power supply units and battery packs. The current source introduced …

Build a DIY Spy Microphone: The Acoustic Telescope

“Like spies in the movies and real life hearing a conversation from a distance can be the difference between war and peace. Of course, your intentions may be more honest such as wanting to hear an animal from a faraway …

Current Sensor Amplifier & Over Current Switch

“Current sensor amplifier and over current switch project is based on ACS714-30A current sensor and LM358 Op-amp, ½ of LM358 op-amp used as an amplifier for low voltage and 2nd 1/2 LM358 op-amp used as comparator which provides …

Simple Pressure Sensor Amplifier & Over Pressure Switch

“The pressure sensor amplifier built using LM358 op-amp and MPXM2051GS pressure sensor from NXP semiconductor. The circuit provides 4V output for full scale pressure input 0-7.5PSI. One op-amp is used as amplifier and 2nd op-amp is used as comparator …

Simple Line Follower Robot With No Programming - Analog Line Follower

“Hi! This is a line follower robot that requires no programming, instead, the behaviour of the robot is determined by an electronic circuit. This build is fairly simple and if you have all the materials it will most likely take …