Arduino DIYs

This  reaction time game tests the time taken by two players to react, and declare the fastest one as a winner. To do this I am using external interrupts and pin...

Presented here is a window alarm annunciator based on Arduino Uno board. An annunciator is mainly used in process plants, power plants and industries to monitor various plant conditions to alert...

A tachometer measures the rotation speed of motors and other machinery. There are various types of tachometers. Described here is a digital non-contact type tachometer using a proximity sensor. Circuit and working The...

This circuit monitors light in surrounding areas at all times, displays light level on the LCD and sounds an alarm when light level becomes low. Such systems are being developed and...

This Device Controller project based on an 8-bit ATmega328P microcontroller (MCU) can control up to eight devices connected to its electromagnetic relays. The article also describes how to program an MCU...

Networking is the one of the most important mean of communication used to communicate with people who are connected to one. Most of the available network communication modules in the market...

This robot with a camera is placed in a remote location to capture the environment in visual form using Raspberry Pi (RPi). The captured visuals are displayed on the user’s virtual...

Presented here is a motion-sensor-based security system using Cayenne and Arduino Uno. Cayenne is the simplest and easiest platform for the Internet of Things (IoT) systems. It allows you to connect...

Today, GSM networks are widely-used, whether for making calls or sending SMSes. But some places need urgent messages like in colleges, railway stations, events, share market and so on, and this...

Here we describe interfacing of three 16x2 LCDs with common data lines to an Arduino Uno board. Four data lines of all the three LCDs are connected to digital pins of...