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...
AI Camera For Tracking Suspicious Activities
Tracking and detecting suspicious activities is one of the most demanding tasks for security personnel and systems. If a security system fails in a...
An IoT Based Health Monitoring System With Medicine Box
Health is characterized as a full state of physical, mental, and social well-being and not merely a lack of illness. Health is a fundamental...
High Torque Servo Motor and Obstacle Avoiding Robot
Robotics is a part of today's communication. Nowadays many industries are using robots, due to their high level of performance, which is a great...
Bluetooth Music Player And Speaker
Bluetooth is a technology that has swept over the music industry. From headsets to speakers, bluetooth has made life easy for music lovers. At...
Design Wireless Charging Power Bank
MagSafe, a magnetic technology embedded into the internal engineering of iPhone 12 models, was originally created as a safety feature for MacBook charging cords....
Multi-User Call Bell For Up To Nine Persons
This unique but simple call bell can be used to call an office boy or a help at home from up to nine different...
Batteryless Energy Harvesting IoT Device
“An IoT device that works without a battery by simultaneously harvesting multiple energy sources.”
A major challenge for design engineers of IoT devices is powering...
1-Watt Single-Channel Audio Amplifier
This simple single-channel audio amplifier is built around 8-pin IC TDA 7052 and uses only a few other components. Two of these can be...
N Space Tech’s Successful Satellite Launch
Sai Divya Kurapati, Founder and Director at N Space Tech and a PhD Research Scholar, aims is to build small, affordable satellites and ground...
Introduction To Raspberry Pi Pico By Making Noise Generator
Raspberry Pi’s first board based on a single microcontroller chip, the Raspberry Pi Pico (Fig. 1), is designed for physical computing—similar in concept to...
Revolutionary Combination of Metaverse and IoT
This DIY focuses on exploring the virtual world. Note that this is a basic design that combines the Metaverse and IoT system, where we...