Category: Microcontroller Projects

Interface 4×4 Keypad and ATmega32 with Single Pin

Engineeering Projects
proteus simulation output 2

How to interface the 4×4 keypad and atmega32 with a single pin? While working with most of the electronic projects, you might have noticed one thing in common; they involve several multiple connections between the components used and the microcontroller. Well, it does seem a necessity too, since doing some hardware work in a certain way is not a piece of cake. Because of this, we are compelled to remove some components or include an additional microcontroller in the project which makes it bulkier and less convenient. To address this…

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VU Meter Circuit using ATmega32

Engineeering Projects
sound VU meter using ATmega31

A Volume Unit (VU) meter is a standard device that represents the signal level in audio equipment. This project “VU Meter Circuit using ATmega32” makes the representation process much easier since it avoids the use of any physical medium to establish the connection between the audio equipment or audio source and the circuit of the project. This way we can eliminate the hassle of using more components. It uses a bar graph LED for a visual representation of the audio. ATmega32 is an 8-bit AVR (Alf and Vegard’s RISC processor,…

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LED Cube 4x4x4 Circuit using AT89C2051

Engineeering Projects
led cube 4x4x4 projects

The world is all about visualization. Mesmerizing illumination has been introduced which provides a different level of satisfaction for human eyes. Using multi-pattern LEDs lights in a cubical representation is our contribution to this global trend. The project; LED Cube 4x4x4 Circuit using AT89c2051 microcontroller to create several light patterns. The cube designed for specific use in science laboratories is much easier to assemble. Previously, we had posted an LED Matrix Display using Arduino. Circuit Description of LED Cube 4x4x4 Circuit using AT89C2051 You can see the entire circuit of…

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GPS Module Interface with ATmega16

Engineeering Projects
circuit diagram of gps interface with atmega16

Currently, in the market, a large number of GPS projects are distributed. You might be wondering what is different here? Well, the GPS receiver we are talking about is solely based on AVR- microcontroller. The project collects information from the satellite and so is more practical than other systems that demand wireless network connections as cellphones or Internet to operate. This GPS receiver system is a boon to remote areas and can be used as a base to work in other research areas. It works with the satellite to track…

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ESP8266 Temperature Logger using PIC16F887

Engineeering Projects
ESP8266 Temperature Logger using PIC16F887

The project ESP8266 Temperature Logger using PIC16F887 is built up using a PIC16F887 microcontroller (MCU), ESP8266 WiFi module, and a ThingSpeak API. Previously, we posted Arduino and ESP8266-based webservers and this project is somehow similar. Introduction to ESP8266 Temperature Logger using PIC16F887 Here is a PIC16F887 microcontroller and ESP8266-based temperature logging system. The project; ‘ESP8266 Temperature Logger using PIC16F887 monitor’s the temperature of the vicinity simultaneously and provides details of the information collected. Well, the project also incorporates a modern concept; ThingSpeak which ensures safe storage and retrieval of data from…

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PIC16F877A Based Dual Mode Robot

Engineeering Projects
receiver circuit of dual mode robot

Previously we presented ‘Arduino Based RF-controlled Robot’. This project ‘PIC16F877A Based Dual Mode Robot’ includes slight modifications to that project. This Robot has inbuilt features to identify and avoid obstacles on its way and can be easily controlled with the help of RF-based remote control. The project can be used as a base to build up projects like automatic vacuum cleaners along with some modifications. The best part in that context is that artificial intelligence cleans the floor on its own and we can guide the robot to clean areas…

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Fingerprint Attendance System using Arduino

Engineeering Projects
Fingerprint Attendance System using Arduino

The project posted here is a simple Fingerprint Attendance System using Arduino and can be very useful for any place where attendance is taken for maintaining registers like offices, schools, etc. Previously, we had posted RFID based attendance system, Arduino Fingerprint Sensor Lock, etc. The project posted here utilizes a thumb impression for taking attendance. The Fingerprint Attendance System using Arduino is based on a simple algorithm called matching algorithm and is compared with previously stored templates of fingerprints against the user’s fingerprint for authentication. Maintaining a register for attendance is…

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Ultrasonic Water Level Meter

Engineeering Projects
ultrasonic water level meter transmitter circuit

Wireless Ultrasonic Water Level Meter using ATmega328 Water level indicator is one of the most popular projects over the internet but the problem with that is, it uses metal electrodes as a result corrosion is occurring. When we pass DC in water it starts to react with the metal in presence of oxygen and corrosion is occurring. This problem is minimized by using alternating current instead of direct current but there is always the risk of electric shock which can be dangerous if is handled by a non-technical person. By…

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DIY Distance Measurement using GPS and ATmega328P

Engineeering Projects
distance measurement using GPS and ATmega328

Whenever we thought about distance measurement, an image of a circuit designed using an ultrasonic sensor is formed in our minds. But today we are going to present here a distance measurement project using the GPS (Global Positioning Measurement) module. The project named DIY Distance Measurement uses GPS and ATmega328 which measure the distance between two positions using the haversine formula. The start point is the position where switch SW1 (Reading Switch) is pressed and the endpoint is the position when switch SW2 is pressed (Switch Switch). Thus, the circuit…

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DIY Soccer Substitution Board using AT89C51

Engineeering Projects
diy soccer substitution board using at89c51

Various types of soccer substitution boards are easily available in the market but these all are very expensive (cost around $200). So, I decided to design a project called DIY Soccer Substitution Board using AT89C51. The feature of the project DIY soccer substitution board is listed below. Low cost and low maintenance. Microcontroller based system thus programmed as per our wish Simple and easily understandable circuit and code. Four individual buttons switch to increase and decrease the score of two teams. Circuit Description of DIY Soccer Substitution Board using AT89C51…

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