I wanted to please a friend, an environmentally conscious friend who is concerned about mould spores in the air (from damp), additionally he is an occasional smoker and lives on a fairly popular city road, so he’s keen to see what’s present in the air as far as concentration and air quality go. To this…
Hello reader! In this tutorial I will show you how I made my own version of Lego Mindstorms. You will wonder: why? Lego Mindstorms is a quite good set to get into robotics while being able to use legos to construct the robot. But this set is very expensive (more than 400$). So I…
Hello friends!! I am here to show you a DC wattmeter which can be made easily by using Arduino nano. One of the main problems I was facing as an electronics hobbyist is to know the amount of current and voltage applied across the charging circuits I made. I thought of buying one meter…
This is an idea about ESP32 and TFT screen, we can combine them to realize the function of a drawing board let us draw, and plug in the SD card to realize the function of digital photo frame to display beautiful photos. Now, we add a camera on this basis, and realize a simple…
The recognition of vehicle number plates is a process as complex as it is necessary, used for example at motorway toll booths or to identify who violate traffic rules. Here we propose a Raspberry Pi-based system that automatically recognizes vehicle license plates using image processing. The system features an HD camera with infrared sensor and…
In this project we will see how to build a home automation greenhouse with Arduino Uno that allows you to grow plants even in unfavorable weather conditions. In addition to recreating an optimal environment, a domotic greenhouse allows the automation of fertilizer administration and controlled irrigation. Furthermore, by monitoring environmental factors in real time, you…
Fed up with shaky footage ruining your video? In this project we will try to address this problem by building an automatic slider for the camera. We create a robust system where the camera slides along a square tube with a pan and tilt mechanism that gives the user the ability to capture any angle….
In this project we will see how to make a 3D printed pet feeder. All modeled parts are available for you to replicate the project in your home. The system is very simple: you are asked to enter two times when you want to distribute food, for example 8:30 and 17:30, then, at the indicated…
In this post we are going to learn how to build a RFID based attendance system using Arduino development board, RC522 RFID reader module and external EEPROM. We will take a brief look at RC522 RFID module, external EEPROM and other circuit modules that makes this proposed RFID attendance system work. RFID card based…
I started this as an academic exercise, but ended up with a very accurate clock. After running for 5 days, it had not lost or gained any time. The main issue with using just an Arduino is that its internal clock speed is not 100% accurate. Hence if you just rely on this then…
In this project we are going to learn how to build an infrared based non-contact thermometer which can be utilized for screening people at schools, offices, shopping malls etc. for abnormal body temperature which could be a sign of contagious diseases. The proposed non-contact thermometer can measure body temperature of a person at forehead…
In this tutorial, you will learn how to set up a Raspberry Pi with CODESYS to act as both a PLC and an EtherCAT master. It will be used to control the motors attached to an EtherCAT Arduino Shield by Esmacat (EASE) Slave device using input from an LCD Shield with another EASE slave device…
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