How to Make MP2.5 & Co2 Detect Wall Clock for Indoor using Arduino, MG811, GP2Y1014AU Sensor

Pulse induction Metal Detector. It can detect a metal coin at a distance of 15 cm and a larger metal object at a distance of 40 cm and more.

Simple metal detector capable of detecting a small coin at a distance of 4-5 cm.

Fan PWM controller with temp sensing and max speed button override

This device allows you to record current, voltage, and power values onto an SD card. Recorded data can help to create useful graphs.

In this tutorial I will show you how to make gas leak alert security alarm using arduino nano and mq 5 gas sensor

This is a tipping bucket rain gauge designed in two separate modules; an outdoor sensing unit, and an indoor display with SD card data.

I've invited fellow writers and now one book is missing. Time to make a lie detector with Arduino Nano.

A telescope alignment compass, for amateur stronomes, without GPS

A simple project to make a GPS log station with data speed, max speed, distance trip and altitude. all data are write on SD card

Setting up a new blade for a band saw is sometimes a hard job. But there could be help with Arduino power.

Park your car with help from the power of the sun!

Use the IO Expander and accessories to connect OLED screens and I2C sensors over a 100ft away.

Project stabilometric platform made with Arduino. Stabilometric platform can be used for medical rehabilitation and games.

Improve reliability of measurements using PPD42NS sensor using modular 3D printed solution which includes exclosure box for sensor.

A low cost air quality monitoring device created with an aim to detect pollution hotspots caused due to traffic jams or factory emissions.

A cheap DIY air quality monitoring device.

Use a DHT22 sensor with Arduino to acquire room relative humidity, temperature, humidex. Show values on display. Log data with MATLAB.

A simple device that makes controlling humidity and saving energy a snap. Operates as easily as a thermostat.

An interesting way to increase sensitivity and reduce the noise of the ADXL335 analog accelerometer.

How to use a GY86 (wave measurements) and water temperature sensor.

This fully functioning Geiger counter was designed after the PKE Meter from the 1980s Ghostbusters movie.

The detector can detect a small metal coin at a distance of 15 centimeters.

Pulse induction metal detector, built on the Arduino Nano.