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Showing posts from January, 2022

Diy Projects With LM358

Hey Viewers in this blog we learn to make interesting projects with LM358 OP-AMP. Here I made two circuits Dark sensor and Obstacle sensor using LDR, IR led and Photodiode. Video Tutorial 1).Dark/Night Sensor Dark sensor consist of LDR and lm358 and a 20K trimpot we can easily adjust the sensitivity of the LDR using the variable resistor. Components Required : 1. LM358 2. LDR 3. 100E, 10K 4. 20K Potentiometer 5. LED circuit diagram : 2). Obstacle/IR Sensor This sensor is used in many projects like line follower robot, automatic dispenser, Distance meserment and many more. In this circuit we have used a IR Led and Photodiode, 20K pot we can adjust the sensitivity of Photodiode. Components Required : 1. LM358 2. IR led & Photodiode 3. 100E*2, 10K*1 4. 20K Potentiometer 5. LED circuit diagram :  

How to use Hall Effect Sensor

How To Use Hall Effect Sensor Introduction : We will talk about hall sensors and their uses here I am using A3144 sensor this sensor has 3 pins VCC, GND, and OUTPUT it works on 5v dc its output is open collector so we get negative output when passes near magnet and this is digital sensor so you can use it directly with your projects it means no need of any comparator.  And this sensor is used in BLDC motor, Fridge door automatic light, magnet pole detection etc. Watch Practical experiment Video of this Sensor . Pinout of A3144 : Circuit diagram : Buy Electronics components at very cheap price :  Quartz Components 1) A3144 Hall Sensor 2) Leds 3) Resistors 4) 5v SMPS   5) Breadboard   6) Breadboard Jumper Wires 7) Crocodileclips