Category: Electronics Projects

Interfacing GP2Y1010 Dust Sensor with Arduino

Engineeering Projects
Interfacing GP2Y1010 Dust Sensor with Arduino

In this article, you will see how to interface GP2Y1010AU0F Dust Sensor with Arduino. GP2Y1010AU0F is an optical dust sensor that can detect very fine particles such as smoke, environmental dust, etc. It is designed for application in commercial air purifiers. However, it is also used in air conditioners and portable air quality monitoring systems. This sensor can detect dust particles up to the size of 0.5 µm. Features of Dust Sensor GP2Y1010AU0F Can easily differentiate smoke and house dust Consumes less current: 20mA max Sense dust particles in less…

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Calling Bell Circuit Diagram

Engineeering Projects
Calling Bell Circuit Diagram

In this article, we are satisfying the curiosity of electronics hobbyists, you and I alike by making a calling bell circuit diagram. The project can be set up in different rooms of an office or hospital and the attendant or office boy waiting place or nursing station. When a call is made from any of the rooms the attendant can be notified through the bell and he/she can verify the room from which the call is made by looking at the display showing the room number. Thus this project allows…

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Micro SD Card Module and Arduino Interface

Engineeering Projects
Micro SD Card Module and Arduino Interface

The majority of Microcontroller Units (MCU) include a limited amount of storage space that is adequate to hold your code or software. The Arduino Mega (ATmega2560) has 8 KB of bootloader space, 256 KB of flash memory for code storage, 8 KB of SRAM, and 4 KB of EEPROM (which can be read and written with the EEPROM library). The issue now is what to do if you need to store data for applications like data loggers, data visualization, etc., but the microcontroller unit memory is too small to be…

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Automatic Solder Smoke Extractor

Engineeering Projects
author prototype of solder smoke extractor

Automatic Solder Smoke Extractor: Soldering is the process of joining electric/electronic components together. It is a very basic and most used process in the field of electronics because it is used to establish a secure connection between PCB and the components. Multiple types of solder wire are available at the market varying in dimensions and quality. Although there are multiple types of solder wires almost all of them are made from Lead and tin. Only the heated iron melts the wire so it is a must to let the iron…

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Arduino Countdown Timer using P10 Display

Engineeering Projects
Arduino Countdown Timer using P10 Display

In this article, we make an Arduino Countdown Timer using P10 Display. The counting is done by Arduino and then displayed in the P10 LED module. This project might come in handy for time-keeping purposes during physical games. The details about pin configuration, display specifications, and hardware interfacing between Arduino Nano and P10 are referenced from the “Interfacing P10 single color LED Display with Arduino Nano” article. In this article you will learn two things: How to display a countdown of 3 minutes in P10. How to include a Reset…

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Interfacing P10 LED Display with Arduino

Engineeering Projects
HELLO WORLD using SystemFont5x7.h

The P10 LED display is a single color (red, blue, and yellow), high brightness, lower power consumption, and long lifetime display module designed for semi-outdoor use. One display module we are using contains 16×32 = 512 LEDs. In the tutorial “Interfacing P10 LED Display with Arduino“, you will learn: How to interface P10 Led display with Arduino How to select text font and size of the character How to display static character and running character.   Introduction to P10 Display P10 display is a dot-matrix LED display. Dot-matrix Led means a…

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PWM DC Motor Speed Controller Circuit

Engineeering Projects
pwm dc motor speed controller circuit

In the article “PWM DC Motor Speed Controller Circuit” article, we will learn, how to control motor speed using a comparator IC. This circuit has an advantage over a normal motor speed controller using 555 timer IC i.e. it protects MOSFETs from short-circuits. This speed control is accomplished in three phases using two methods: variable switching frequency and variable pulse width modulation. The phases are explained as follows: We will first produce square wave pulses of the necessary frequency i.e. switching frequency. We will create PWM pulses of the required…

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How to Setup Digital Programmable Timer TM-612

Engineeering Projects
step 2 of digital programmable timer TM-612

How to Setup Digital Programmable Timer TM-612 Performing a simple task like turning ON/OFF a system every day just by pressing a button can become tedious when you have to travel long distances to do it. This can cost time and sometimes even money if there are hurdles when traveling. So, introducing “TM-619-2” from Frontier, A Multipurpose 7 Day Programmable Digital Timer. This digital timer has a wide range of power supply options: – 240Vac main supply, 120Vac main supply, 24Vac or 24Vdc, 12Vac or 12Vdc. The digital timer comes…

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DIY Solar 18650 Charger with Emergency Light

Engineeering Projects
DIY Solar 18650 Charger with Emergency Light

In this article, you will learn to design DIY Solar 18650 Charger as well as a solar emergency light. This device will help you charge a device through a USB port and it has an inbuilt led in it, which will serve as an emergency light when needed. Introduction of DIY Solar 18650 Charger with Emergency Light: Solar energy is the best way to reduce your energy consumption as it uses sunlight to produce energy. Sunlight can be utilized neatly, without harming our environment. So, here we are also going…

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Arduino LiFePO4 Battery Charger Circuit

Engineeering Projects
author prototype of arduino lifepo4 battery charger

Amongst the rechargeable batteries available on the market, Lithium Iron Phosphate battery (LiFePO4 battery) or LFP battery (Lithium Ferro Phosphate) is widely used due to the various benefits offered, compared to other batteries. Longer life span, highly safe, lightweight, improved discharge, and charge efficiency are some of the advantages provided by the LiFePO4 batteries. In the market, you will find different types of LiFePO4 battery chargers that may or may not fulfill your requirements, and you may find them expensive. Previously, we had already discussed a DIY LiFePO4 battery charger…

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