Aswinth Raj

Measure Sound/Noise Level in dB with Microphone and Arduino

Noise pollution has really started to gain importance due to high population density. A normal human ear could hear sound...

Optical Character Recognition (OCR) using Tesseract on Raspberry Pi

The ability of machines to use a camera to look at the real world and interpret​ data from it would have a greater influence on...

Raspberry Pi Based Jarvis themed Speaking Alarm Clock

“Good morning. It’s 7:00 a.m. The weather in Malibu is 72 degrees with scattered clouds. The surf conditions are fair with...

Make a Non-Contact Infrared Thermometer with IR Temperature Sensor

When debugging an electronics circuit or testing a new hardware design, often times I tend to check if the components on the...

Lora Based GPS Tracker using Arduino and LoRa Shield

Knowing the whereabouts of a particular object/person has always been comforting. Today, GPS is being extensively used in asset...

Single Cell Boost Converter Circuit using Coin Cell – 5V Output

Battery cells are the most commonly used energy source to power portable electronics. Be it a simple alarm clock or an IoT...

Arduino Whistle Detector Switch using Sound Sensor

As a kid I was fascinated by a toy music car which gets triggered when you clap your hands, and then as I grew up I wondered if...

Electric Vehicle On-board Chargers and Charging Stations

As the world is gearing up to unleash an EV revolution, it is still true that the rate of adaption is slow. Electric Vehicles (...

How to make a Supercapacitor Charger Circuit

The term Supercapacitors and its possible usage in Electric Vehicles, Smartphone’s and IoT devices are being considered...

IoT Based Biometric Attendance system using Arduino and Thingsboard

Few years back if you were to tell someone that the Geyser and bedroom lights in your home are connected to internet, they...