In this article, we are going to learn how to interface DHT22 temperature and Humidity sensor with PIC16F877A micro-controller. DHT22 is related to DHT11 with some changes in data communication. This sensor is also known as AM2302/RHT03. As the Proteus library of DHT22 is not so available, so the library Read more…
When you need to measure humidity, one sensor comes in mind first is DHT11. This sensor also provide temperature data. Using DHT11, we can measure humidity and temperature but as it is a digital sensor, interfacing is not linear like analog sensor. Here in this article, we are going to Read more…
When you are working with electronics, specially power electronics you must have to measure line frequency. But most of the cases people do not have a frequency meter. If you knew how to make a frequency meter in a very easy way, you would make one for yourself. Here in Read more…
Sometimes, we need to add LCD with project while the micro-controller itself have limited free pins for LCD. In that case, we can use shift registers to interface LCD with mirco-controller. After reading this article, you’ll be able to do that yourself. Its easy! About 16×2 LCD: LCD is very Read more…
Lets make an Ammeter. Yes, in this article we are going to make an Ammeter for DC circuits. After reading this article you’ll be able to make one for yourself too. I hope it will help you a lot. So keep reading… What is an Ammeter? An ammeter is a Read more…
Measuring current sometimes become very necessary in electronics circuits. We can measure DC current using current sensors or by using simple shunt resistors. In this article, I’m going to discuss about DC current measurement techniques and different circuits for this purpose. DC current sensing techniques: Based on different circuit configuration Read more…
In this article, we are going to learn how to make a high voltage AC voltmeter and we are going to measure 2500V !!!. Yes, we are measuring high voltage with our circuit. Lets do it… High voltage measurement technique: Measuring high voltage is not safe for anyone. But if Read more…
Measuring over 1500V is not a safe work at all. But sometimes, we need to implement such a meter. Here in this article, we will make a high voltage DC voltmeter with Arduino UNO that can measure over 1500V. As assistive devices we’ll use Op-Amp and 4×1 seven segment display. Read more…
In this article, we will learn to make an AC voltmeter using Arduino UNO and 4×1 seven segment display. If you learn this project clearly, you’ll be able to measure any AC voltage of your home. I hope you’ll make your own AC voltmeter yourself now. What is the difference Read more…
A DC volt meter is very common in electronics and need to use in many systems as well. In this article, we are going to learn how to make a DC voltmeter with Arduino and Seven Segment display. If you learn this carefully, you’ll be able to make voltmeter of Read more…