Arduino Tachometer
Here’s a simple Arduino Tachometer project for measuring and displaying speed of rotation. You can find similar projects everywhere on the web but this one has some unique features. First off, the idea is based […]
Grey Tracker (v1)
Grey is the neutral achromatic color midway between white and black – Am I right? If you want to make something of yourself to detect the grey, let me give you a cheap and cheerful idea. […]
USBtinyISP Primer
While Googling for nothing, I noticed a little device “USBtinyISP” helpful for programming Attiny85 microcontrollers using the same setup method as for handling Arduino sketches. There’s also no difference in the development environment as we […]
Simple Thermostat for Electric Geyser
Here is a simple yet highly reliable thermal control circuit which can be used with almost all electric geysers. The Arduino microcontroller based circuit switches an electromagnetic relay on or off according to the temperature […]
Digital Pulse Counter
Recently I came to understand the true demand for a multi-purpose digital pulse counter. So I designed an east-to-build digital pulse counter circuit based on some generally available cheap electronic components. The quick microcontroller based […]
How to Play with a Water Pressure Sensor?
Water Pressure Sensor is not a familiar everyday sensor for most electronics hobbyists and makers, so here’s an introductory tutorial on a popular water pressure sensor – the DFRobot Gravity: Analog Water Pressure Sensor. In […]
DHT11 Sensor Primer
In this guide we will learn how to play with a cheap ‘n’ cheerful temperature and humidity sensor DHT11 – the minuscule 4-pin sensor accurate enough for most do it yourself projects need to read […]
Attiny85 Programming Adapter for Arduino
Using an Attiny85 microcontroller is an attractive and economical way to build a minuscule Arduino project backed by a few lines of code. Very often such a project will demand an external adapter to program […]
Ultrasonic Water Level Monitor
Here’s a little idea to monitor the level of water in a water tank with the help of an ultrasonic sensor module. The build process is very simple, and best understood by referring to the […]
Little Melody Maker
Here is a simple do it yourself project of a little melody maker useful for all those hobbyists interested in making electronic toys or fancy gizmos for their kids. For extreme simplicity and flexibility, the […]