Someone has been eating my cookies! Thankfully Arduino is here to help find out who it is.

UltrasonicEyes is a fun and quirky project you can place somewhere and watch as it looks at things moving around in front of it. Freaky!

We can measure body temperature without contact with this device.

Create a burglar-tripwire with the ultrasonic sensor.

I found limited documentation on the usage of a color sensor I recently purchased, so here is my attempt to make it more simple.

With only an arduino board, two servos, and an hc-sr04, and some python, you can create a room scanner that is capable of showing depth!

Very simple air quality monitor with nice processing graphical interface oh PC monitor.

Just before creating my next tutorial, which will be using a PIR sensor, I thought I might create a separate tutorial for PIR Sensor.

Connect GPS and MicroSD Card to Arduino and log the GPS information - Quick and Easy

Build an Arduino heart rate monitor with a MAX30102 sensor and a 16x2 LCD.

Remote temperature monitor using a Bluetooth module and an NTC thermistor. An Android app made with App Inventor is used to read data.

Pressure tendency can forecast short-term changes in the weather. This is a very sophisticated device designed for sailors, yachtsmen, etc.

I am back again with another Arduino based home automation project.

Copy colours from outside environment.

Senses for smoke in the air near a 3D printer and will sound an alarm and turn off power to the printer if smoke is detected.

An Arduino based device to read multiple DS18B20 sensors and send the values through a RS232 connection to a domotica system.

Use an ESP32 Cam and a passive infrared (PIR) sensor to create a motion-activated security camera that posts photos to a Discord channel.

Build a simple incident light meter for old meterless film cameras

This project will demonstrate how to build a water level monitor using an Arduino Nano, a Solu SL067 water level sensor, and an indicator.

Variometer is instrument that indicates the changes in the altitude variations.

Build a weather station with Arduino & ASP.NET Core.

Evaluate the amount of the energy generated by a solar panel at a given direction through light intensity levels.

This project checks measurements automatically using lasers.

In this case, it is interesting that are used two sensors to scan the entire 360-degree space.