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Test and Measurement Circuits

Welcome to our comprehensive collection of test and measurement circuits, designed to ensure accuracy and reliability in your electronic projects. Whether you’re a hobbyist, student, or professional engineer, our range of circuits offers versatile solutions for testing and measuring various parameters such as voltage, current, resistance, and frequency. Explore circuit designs for multimeters, oscilloscopes, function generators, and more, equipped with features such as precision accuracy, real-time monitoring, and data logging capabilities. Our detailed guides, tutorials, and circuit diagrams provide step-by-step instructions, calibration tips, and best practices for building and utilizing test and measurement circuits effectively. Enhance your testing capabilities and optimize performance with our curated selection of high-quality test and measurement circuit.

Simple-Continuity-Tester-With-Buzzer

If you are a student who has to make electronic projects, or someone who has to make them on a daily basis or repair electronic circuits then the most important tool on your bench is … Read more

Simple Continuity Tester With Buzzer

Fariha Zahid
33,483 views
fridge door alarm

In this tutorial, we are making a project on a Fridge door alarm. In order to save the food stored in the fridge from spoiling and maintain its freshness, it is necessary to close the … Read more

Fridge Door Alarm using an LDR

Fariha Zahid
6,823 views
Simple-Metal-Detector-using-CA3140-IC

In this tutorial, we are making a very easy and interesting project of a Simple metal detector using a CA3140 IC. There are lots of metal detectors available in stores etc. to build but they … Read more

Simple Metal Detector using CA3140 IC

Fariha Zahid
16,483 views
cold sensor alarm buzzer-0.jpg

In this tutorial, we are making a cold sensor alarm in the simplest way possible. We are using a 555 timer IC here, you must be familiar with this IC because it is used in … Read more

Cold Sensor Alarm Switch Using 555 IC

Fariha Zahid
6,799 views
object counter pc817 optocoupler

In this tutorial, we are making a very useful and interesting project of an Object counter. This circuit is simple and uses an LDR, a laser light, a PC817 photocoupler, an 8-digit inexpensive calculator, and … Read more

Object Counter with PC817 Opto-coupler

Fariha Zahid
8,628 views
door security alarm reed switch

In this tutorial, we are making a project on a door security alarm circuit. This circuit is easy to make, inexpensive and so compact that it can be fitted in a very small place easily. … Read more

Door Security Alarm with Reed Switch

Fariha Zahid
6,034 views
Burglar Alarm Using 555 Timer

In this project, we are making a simple wire break or burglar alarm using 555 IC. This circuit is easy to make, inexpensive, and beginner-friendly as it only uses three components 555 timer IC, a … Read more

Wire Break Or Burglar Alarm Using 555

Fariha Zahid
12,156 views
Ultra Sensitive Vibration Sensor CA3140

In this tutorial, we are making a project of an ultra-sensitive vibration sensor using a 555 timer and CA3140 IC. The purpose of this circuit is to sense any kind of vibration and switch on … Read more

Ultra-Sensitive Vibration Sensor using CA3140 IC

Fariha Zahid
10,427 views
Proximity Obstacle Sensor Detector

In this tutorial, we are making a project on a Proximity & Obstacle Sensor / Detector. The purpose of this circuit is to detect anything in its proximity, the circuit is built around a tone … Read more

Proximity & Obstacle Sensor / Detector LM567 IC

Fariha Zahid
11,468 views
0.01Hz To 500kHz Adjustable Tone Frequency Decoder Using LM567

In this project, we are making a 0.01Hz To 500kHz Adjustable Tone & Frequency Decoder Using LM567. This circuit detects a specific tone and frequency from 0.01 to 500KHz, the main component of this circuit … Read more

0.01Hz To 500kHz Adjustable Tone Frequency Decoder Using LM567

Fariha Zahid
18,217 views
water level indicator rf module

Nowadays water shortage has become an alarming and common problem and the main reason that causes water shortage is the wastage of water. We usually forget to turn the tap off while filling our tanks … Read more

Wireless Water Level Indicator using RF module

Fariha Zahid
14,028 views
Vehicle Reverse Parking Helper Project-0.jpg

Reverse parking can get a little tricky or difficult and there are more risks of bumping the car into something which can cause damage so to solve this problem we have come up with this … Read more

Vehicle Reverse Parking Helper Project

Fariha Zahid
5,732 views
Temperature To Frequency Converter Circuit

Here is a tutorial for a Simple 555 Temperature to Frequency Converter. The purpose of this circuit is to convert analog temperature signals to frequency signals. The conversion of these signals is a pretty common … Read more

Simple 555 Temperature To Frequency Converter

Fariha Zahid
7,849 views
Light To Frequency Converter Using 555 IC

Here we are making a circuit of a Light Frequency Converter Using 555 IC. The purpose of this circuit is to convert light signals to frequency, this method is used in a lot of electronic … Read more

Light to Frequency Converter Using 555 IC

Fariha Zahid
7,522 views
smoke detector alarm

In this tutorial, we are making a project on a Smoke detector alarm. We all know that there’s always a danger of things getting caught in a fire which can cause damage on many levels. … Read more

Smoke Detector Alarm using MQ2 Sensor

Fariha Zahid
12,837 views
temperature controlled switch lm35 ca3140

This is the project of a temperature-controlled switch using LM35 and CA3140 ICs. The main purpose of this circuit is to provide temperature sensing applications. LM35 is a temperature sensor IC, its output is linearly … Read more

Temperature Controlled Switch Using LM35 & CA3140

Fariha Zahid
6,709 views
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