Arduino DIYs

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...

This article describes the implementation of a digital frequency meter using Arduino Uno to determine the sinusoidal frequency signal in the range of 20Hz to 5kHz. The logic involves counting the...

We have seen many projects where a robot is controlled by a remote controller. Here we describe a robot (robocar) that can be steered in any direction just like you drive...

This digital photo frame is designed using Arduino Uno. Smartphones with high-resolution cameras and enhanced features have motivated people to click photos of almost everything that they come across. It is...

This project is based on Arduino Uno and Processing software for monitoring temperature and sending voice alerts. Processing is an open source IDE that can be used to visualise data and...

Water turbidity is an important factor for maintaining the clearness of water in different places such as ponds and lakes. It is also required for monitoring water sewage treatment systems, washing...

Necessity I have an old window AC at my lab, situated at the terrace. The AC needs to be run intermittently more so often when I’m out of the station and the...

Here is a project for locking and unlocking with a tilt sensor by tilting it in a defined sequence. It uses an accelerometer module to detect the tilt motion. If the...

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...

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...