The article automatic street light circuit diagram is self-sensing fully automatic night lamp designed to work with AC. Unlike other circuit it does not require DC thus no rectifier and bulky capacitor and as a result making cost will be cheap. One can use this circuit with street light, dome lamp, parking light etc. this simple circuit switch on the light at night and off automatically at day time. Description of Automatic Street Light Circuit Diagram This simple project is built around four common available components i.e. resistor, LDR, SCR…
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How to interface RTC module with Arduino and ESP Board
Here in this article, you will learn about the RTC module and how to interface this module with Arduino and ESP boards like Arduino MEGA, Arduino UNO, Arduino NANO, ESP32, Node MCU, and Arduino NANO. How to interface RTC module with Arduino and ESP Board RTC acronymic for Real-Time Clock is an electronic Integrated Circuit (IC) that keeps track of time around the clock. It is more like a computer clock where once we set it up gives us accurate time even after the power outage. Before we delve into…
Read MoreAutomatic and Manual Temperature Control unit
Automatic and Manual Temperature Control unit: Automation have reached almost everywhere whether it is home automation or agriculture field. Automation system collect different parameter such as temperature, humidity etc. in real time basis and keep control of fan, moist control etc. But sometime we need manual control over various actuator or load like motor, fan etc. wither testing of load or when automatic system does not work. This project is the modified version of Arduino Based Temperature Controlled Fan. Manual mode is also considered as backup mode with which we…
Read MoreArduino PH Meter using PH Sensor
PH is a scale with which we can determine whether the water-based solution is acidic or basic. PH is represented as the power of hydrogen or the potential of hydrogen (Source: Wikipedia). With the help of electrodes, we can measure PH of solution electronically which could be more beneficial to measure and automate PH of the aquarium, or hydroponic or aquaponic. So, in this article, we will learn How to make Arduino PH Meter. After completing this video one can Know about electrode and their working method Calibrate the module…
Read MoreInterfacing DS18B20 Temperature Sensor with Arduino
Interfacing DS18B20 Temperature Sensor with Arduino: This article is all about DS18B20 and its interfacing with arduino. DS18B20 comes in two variants: Normal and waterproof version. Normal version is available TO-92 and uSOP. Let’s start with introduction. Description of DS18B20 It is digital programmable temperature sensor based on one wire communication i.e. it requires only data line and common GND. Power supply is optional because this sensor can drain require power supply from data line and this mode called parasite mode. DS18B20 can provide different temperature resolution is 0.50C, 0.250C,…
Read More LM35: How to get Stable Temperature Reading
One of the most common analog temperature sensors used for temperature monitoring and controlling is LM35. According to the manufacturer, LM35 is a precise centigrade temperature sensor, but the reality is a bit different when we directly wire this sensor with Arduino. There are various reasons for fluctuation in output. Here in the article ” LM35: How to get Stable Temperature Reading” we will address almost all the reasons and solving one by one. But before that let’s see how this sensor work. Basic Working of LM35 According to the…
Read MoreAdjustable Dual Timer Circuit using 555 Timer IC
Timer IC 555 is one of the most versatile and most used IC because of it’s much more application like PWM amplifier, delay timer, switching circuit, duty cycle selector, clock pulse generator etc. This can also be used in various application like accurate timing, sequential timing, time-delay generation etc. The project Adjustable Dual Timer Circuit using 555 Timer IC is also one of the applications of 555 timer IC. By using this project one can switch two different appliance one after another for adjustable timing (1 Minute to 10 minutes).…
Read MoreTemperature, Humidity and Heat Index Meter using Arduino
Temperature and humidity are one of the essential parameters of environment for various projects like greenhouse, home automation, weather station or other various industrial automation. Sometime we also need to find feel temperature or apparent temperature that we feel and it is called Heat Index. Heat Index can be defined as an index which accounts both air temperature and relative humidity of an environment. In this article we are going to build a temperature, humidity and heat index meter using arduino and DHT11. Circuit of Temperature, Humidity and Heat Index…
Read MoreESP32 Based Real Time Corona Case Counter
Novel coronavirus (Covid-19) is declared a pandemic by WHO. Almost all country is suffering and most of them are in a lockdown situation. Hundreds of thousands are infected and thousands are dead and this number is increasing exponentially. Only emergency services like hospitals, electricity, water supply are in operation with possible precautions. People are not allowed to step out of their homes. Some websites like Worldometers, Corona Virus Esri API show real-time corona cases, the number of recovers, deaths, etc. Based on the data displayed over this website we will…
Read MoreSquare Wave Generator using 741 IC
Op-amp 741 IC is one of the most popular and versatile operation amplifiers and can be used in a lot of applications including, comparators, wave generator amplifiers, etc. Today, we came up with another application of 741 IC i.e. Square Wave Generator using 741 IC. Objectives of Square Wave Generator using 741 IC: To design a square wave generator To describe the working of the square wave generator. Circuit diagram of the square wave generator The circuit of the square wave generator is shown in the figure below. One capacitor…
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