Dear friends welcome to another tutorial! Today we are going to build an interesting Arduino project which is using a fingerprint sensor ...

Here we use PIR sensor and Arduino to detect the motion of a hand. This detection can be used to operate electronic equipment.

Smarter Home Energy Use with Open Source and Cheap Sensors.

Let us predict the changes around us with Arduino

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

Easy to build, but comparable with professional seismometers, homemade Arduino seismometer.

Pulse induction metal detector, built on the Arduino Nano.

A cheap DIY air quality monitoring device.

It is hard to measure the height of the children. So, we made Height Measure using distance sensor VL53L0X.

Arduino Nano and Visuino: Plot BME280 Temperature, Humidity and Pressure on Nextion Display Scope - Quick and Easy

This is a very precise scale for any weight up to 1.5 kg!

Simple data logger that stores electrical data (voltage, current, power, energy, etc.) in an SD card, with timestamp for later analysis.

An Arduino based device to monitor the levels of combustible gases, carbon monoxide, relative humidity and temperature in the kitchen.

Power monitoring, appliance detection using Arduino and save data into a Text file, Google Sheet for creating graphs and analysis.

The lightmeter based on Arduino as a main controller and BH1750 as a metering cell. Information is displayed on SSD1306 OLED display.

Portable range/distance detection device using an Arduino, ultrasonic sensor, and buzzer.

A cube with all the necessary sensors, suitable for a wide range of applications like agriculture. Know the land beneath you!

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

Control the temperature of the rooms you are actually in

Intelligently reduce the moisture in your basement/crawlspace to help control mildew growth and lower your heating/cooling bill.

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

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

The HMC5883is a digital compass designed for low-field magnetic sensing. This device has a wide magnetic field range of +/-8 Oe.

Use the cheap Fiagro TGS4161 Sensor to monitor CO2