What is Turbidity in Water and Why Measure It? Turbidity is the degree or level of cloudiness or haziness of a liquid. This happens due to the presence of large numbers of invisible particles (which ...

I decided to make a 'Pulse Oximeter' because, in this pandemic situation, we need this device a lot. It helps us to measure the BPM(Beats Per Minute) and the percentage of Spo2 of our Body. I used ...

Measuring current is both easy and very accurate using a current sensing module and an Arduino. PCBWay $5 for 10 pieces https://www.pcbway.com PCB Prototyping the easy way - see my video #129 for ...

In my previous post, I used blinking videos on my computer to entrain my brain waves. A key question, though, was whether my computer could play those blinking videos steadily. If the blinking isn’t ...

A ping is sent from the HC-SR04 ultrasonic distance sensor and Arduino measures the time it takes for the ping to return back after hitting an object placed at a known distance from the sensor. Speed ...

If you want to know the acidity (or alkalinity) level of your pool or aquarium water, you need a pH meter. In this article, you'll find a simple but effective solution based on off-the-shelf ...

If you frequently use a 3D printer for your projects then you may experience issues calculating the material weight and length usage. If so, then you might be interested in this project using Arduino.

Abstract: This paper presents the performances of rainfall energy harvesting through the use of a piezoelectric transducer and an Arduino-based measuring system. Diverse studies agree on the ...

Abstract: The purpose of the projects is the development of measuring devices. These devices measure capacitance, distance and temperature. The main platform for instrumentation modeling was the ...

Denis Hennessy recently encountered a problem we've all faced: he needed some AAs for a battery-eating gizmo, and he was overwhelmed by the choices available. Ignoring the shiny packaging and its ...