Build a Speed Sensor using Arduino with IR speed sensors to accurately measure the speed of moving objects. This tutorial covers circuit design, sensor calibration, speed calculations, and optimized ...

Create a smart blind stick using Arduino to help visually impaired individuals navigate safely. This DIY project uses an ultrasonic sensor, buzzer, and LED indicators to detect obstacles and provide ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very ...

This is IOT Based Air Pollution Monitoring System that measures indoor harmful gases present in the air like Carbon Dioxide(CO2) using an MQ135 gas sensor and Carbon Monoxide(CO) using an MQ7 sensor.

While PIR sensors can be used with Arduino and other microcontroller boards, those best-suited for hobby use are smart enough to perform simple tasks without any programming.

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors. The ...

A project to use MQ7 / MQ2 sensors along with uMQTT for tracking gas levels. Implemented on Pycom FiPy/WiPy esp32 micropython microcontroller. MQTT and push notification on phone implemented.