Here’s an interesting circuit of a wireless door bell/buzzer for electronics students and hobbyists. The circuit is a short-range radio-frequency (RF) tone generator realized with the help of a cheap 433MHz RF transmitter & receiver […]
I’d made a number of tone decoder projects with the unique NE567 PLL tone decoder chip in 1990s, and most were published in Elektor Electronics (UK), Silicon Chip (AU) and Electronics For You (IN) magazines. […]
Afraid of snakes? Don’t worry, here is a portable electronic snake repeller solution to keep all poisonous snakes out of your surroundings. All you need is to simply put the device on the bare floor/soil […]
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 […]
I believe most readers are familiar with Hak5’s USB Rubbery Ducky. Well, simply it is a $45 key stroke injection tool, masked as a generic usb flash drive, widely used to hack unlocked computers. Computers […]
Once again, here is the circuit diagram of a little night lamp wired around the evergreen 555 tiny timer chip. The circuit, designed to run on a standard 6F22 9V battery, can be used as […]
USB Power Bank – popularly known as mobile phone emergency charger – is an ideal solution for powering small microcontroller based hobby projects. Even the cheapest power bank in the market has so many useful […]
Measurement of external parameters like humidity and temperature is critical for meteorological applications, medical devices, agriculture and industrial drying systems. Presented here is a Humidity module HYT271 that provides low drift and good stability at […]
Nowadays minuscule 433MHz RF modules are used in a wide variety of applications that require wireless control, and are very popular among the tinkerers because these modules are very cheap and can be interfaced easily […]
Introduction Have you ever thought of locating yourself on the blue planet (Earth)? This might be a tough question if you are residing in a new place. But don’t worry, the answer is simple, the […]
