A Small Portable IoT Health Sticker
Monitoring health of a person continuously 24 hours a day and every day of the week is not easy for even doctors and researchers,...
DIY: Smart Google Glasses With Built-In Phone Feature
The previously designed Smart Google Glass is configured with a transparent OLED display that provides various information in front of the eye as an overlay....
MagSafe Enabled Wireless Power Bank
MagSafe, a magnetic technology embedded into the internal engineering of iPhone 12 model, was originally created as a safety feature for MacBook charging cords....
Remote Controlled Corona Protection Device Specially For Children
We know that World health organization (WHO) recommends that everyone should wash their hands with soap and water at least 20 seconds to prevent...
The Standalone Logic Analyzer That Needs No Laptop
The most essential tool for engineers is a logic analyzer, which they operate using a laptop or PC to show the results. A stand-alone...
Top Reference Designs for Li-Ion Chargers
Designing a Li-Ion Charger? Here’s a collection of valuable industry-grade reference designs shared by leading brands.
Reference Design Of USB BC 1.2 Compliant Charger
The Reference...
Power Supply With Digital Volt-Amp Panel Meter
This is a variable power supply with digital volt-amp panel meter. Its advantage is that you do not need a separate voltmeter, ammeter, or...
Reference Design For A 10A Fast Battery Charger
The fast charging reference design from Renesas is capable of delivering a high charging current of 10A. The reference design is up to 98%...
2S Cell Charger With An Integrated Boost Converter
The EV2639A-R-00B from Monolithic Power Systems is the reference design for a 2S charger with an integrated boost converter. The reference design features a...
Multibay charger for 2S configuration
Do you want to charge a 2S battery pack, or want a charger that can be customised to charge up to 32 cells? Then...
DIY Micro Spy Bot with Live Audio and Video Streaming Capabilities
Microrobots with live audio and video streaming capabilities can help in tracking human beings during earthquakes and also perform underground surveys. This mini spy...
Finger-Size Full-Touch E-Ink Phone using Raspberry Pi
The modern smartphone uses either a backlight display or an OLED display that can harm our eyes on prolonged use. That's why the E-ink...
DIY Wireless Multi-Room Audio System
Many times we wish to stream the same song on multiple locations simultaneously. Audio streaming can be done on all speakers while connecting a...
Weather Satellite Station For Meteor M2 Reception
The basic setup needed to receive the weather satellites was covered in ‘Set Up Your Own Weather Satellite Receiving Station’ article published in January...
Smallest FM Audio Bug Spy Device
As seen in James Bond movies, audio spy bugging devices are used by intelligence agents in different parts of the world. These devices can...
Designing Batteryless Remote
“The first Batteryless remote that can work for years"
There is much chemical waste being generated with billions of remotes being used. The waste produced...
24V/12V Battery Voltage Level Indicator
Sometimes we do not notice that the battery has drained out and as a result the connected equipment does not work properly. By connecting...
Wireless Charging Circuit For Micro Sized Werable Earbuds And Devices
Designing wireless charging systems for small-size electronic devices like smartwatches, AirPods, Bluetooth headsets, etc. is very difficult. Added to that only a few types...