Arduino Tutorial

The BMP085 is a relatively cheap barometric pressure sensor from Bosch. I believe this sensor is kinda old (no information about this device is found on the Bosch site) and yet it’s still used today because of its simplicity. This Arduino BMP085 tutorial covers the basics of using this device …

Vibrations can be an indicator that trouble is coming. It can be your machine going haywire, a gear on a robot missing teeth, or worse, a looming earthquake! In this vibration sensor tutorial, we will look at how to detect vibrations using specially designed sensors and an Arduino microcontroller.

A relay is commonly used to interface a low-current circuit to a higher-current circuit. As such, it’s very useful in controlling appliances and other mains-powered devices using microcontrollers. In this Arduino relay tutorial, I will show you how to use a relay with microcontrollers.

The MQ-7 carbon monoxide gas sensor is especially designed to be sensitive to carbon monoxide (CO) gas which is emitted by vehicles, factories, etc. Since this gas is considered toxic to humans at certain levels, the concentration of CO is used to determine the air pollution in a given area.

A fire or flame sensor is simply an infrared LED with an amplifier circuit. Flame radiates an infrared signal, which triggers the LED to produce current. This current is converted to voltage for an analog-to-digital converter to read. Let's see how we can build an Arduino fire detector using this …

A water level sensor is a simple device used to measure the level and volume of water inside a container. This tutorial shows you how to use a water level sensor with microcontrollers like an Arduino or PIC.

LoRa is a promising low-power, long-range wireless transmission protocol developed by Semtech as part of the emergence of the Internet of Things (IoT). Simply put, it is a method for sending data separate from WiFi, Zigbee, or Bluetooth. Its low power consumption amidst a very long range of transmission (up …

The number of Arduino boards have increased over the years; some have been discontinued while others are still available. The choice of which board to use depends on several factors: price, features, availability, ease of use, etc. Here’s a summary of all Arduino boards with their pros and cons.

A flex sensor can be used with an Arduino to detect bending, measure finger movement, control servos, or build gesture-based projects. In this tutorial, you’ll learn how a flex sensor works, how to connect a flex sensor to an Arduino UNO, and how to read bend values using a simple …

The MQ-6 is a semiconductor gas sensor device for detecting the levels of propane and butane in the air. Since liquefied petroleum gas (LPG) is composed of these two gases, then the MQ-6 can be used as a LPG sensor.