Automatic LED Night Light
Inspired by a Chinese design, recently I built a small automatic LED night light with the help of a few generally available inexpensive components. Shown below is the base schematic of that automatic White LED […]
Medical Electronics and Health Care Applications
To enhance the lives of humans medical devices are critical for making invasive surgeries. Today, every medical equipment uses at least one sensor for healthcare monitoring. To meet the strict demands of medical electronics, various […]
15 Consumer Electronics Applications – You Need to Use
Electronics is growing every day and recent trends in embedded systems are also happening with the Internet of things. Home appliances are talking to each other without human intervention. Robots are making home jobs and […]
Microwave Radar Motion Sensor Switch
Presented here is an automatic motion sensor switch built around a cheap ‘Doppler Microwave Radar Sensor’ that can be easily used as standalone detection sensor. The circuit, designed as an alternative to the common PIR […]
3V3 uC Power Supply
Nowadays most electronics hobbyists require a precision 3.3V power supply module for their microcontroller (uC) and/or internet of things (IoT) projects. The traditional linear power supply is not a good choice in many situations because […]
Different Types of Sensors – Analog and Digital
Sensors have become an integral part of the embedded system. Right from your mobile to security systems installed at home. They are also becoming important for meteorological stations to predict weather parameters like temperature, pressure, […]
Electronics and Its Applications
Electronics is an applied form of science that deals with electrons. It handles electric circuits containing active elements, passive elements and other underlying techniques making it as an important part of engineering. The world is […]
Poorman’s Laser Diode Driver
Recently I got a couple of powerful laser diodes from a friend abroad. The ‘invisible’ (infrared) laser diodes with 1000mW and 2000mW power (808nm wavelength) are good for numerous applications like solid-state laser excitation, infrared […]
Universal Relay Module
Here is the circuit of a do it yourself universal relay module for microcontroller projects. One advantage of this design is that it can work with both active-high and active-low TTL signals from the I/O […]
Li-ion Universal Battery Charger Teardown
Outcome of a product teardown can be used by hobbyists/makers to find out what components are being utilized in the electronic product. Such knowledge can aid understanding of how the system works, including innovative design […]