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When it comes to security, RFID card-based digital locks are more reliable than key-based mechanical locks since they cannot be easily broken also they are Contactless Lock. Therefore, some hotels across the world have adopted this technology. However, there...
This LED desk lamp can be switched on or off from a distance using Bluetooth. You can even regulate the lamp’s brightness through a slider on the screen of your Android smartphone. The key hardware required for this little project...
Total Dissolved Solids (TDS) is a measurement for detecting the potability of water. Both humans and aquatic creatures require a suitable level of water content to survive. TDS value > 1000 ppm indicates an excess of dissolved solids (high)...
Obtaining AC current readings from an AC wire helps us to know the amount of power that electrical appliances consume, promoting effective maintenance of the required load and supply. So today you will make a current meter that performs current...
Linear actuators are widely used in robotics and mechatronics. But getting their accurate position is complicated. Linear Actuators are very costly (prices start from 10K) and can go up to several centimeters only also Position Controlled Linear Actuator is...
Managing the number of books present in a library or warehouse maintenance of several items is quite laborious and time-consuming. So for today’s project, we will be making a device that can read a small RFID chip placed within a...
This Android-based project can monitor on-site (field) process data sensed by two temperature sensors and display the temperature (in degree centigrade) on a smartphone. The authors’ prototype of the project is shown in Fig. 1. A smartphone-based process monitoring system...
This project is used to detect colours and display the colour names on an LCD using the TCS3200 colour sensor module and Arduino board. The sensor outputs red, green, and blue colours’ reflected light values using colour tinted photodiodes....
This project can be used to control multiple electrical appliances on any floor from any floor of a multistory building that has up to six floors. It uses a controller area network (CAN) bus and Arduino Uno to control...
To avoid the risk of contracting Covid-19, it is important not to touch surfaces including switches, doorknobs, and keys that have been frequently used by other people. This project is for a contactless switch that works with hand gestures. The...