Electronics projects like movement and obstacle detection, drone fleet management, and robots require a camera for capturing images. I personally recommend using a Raspberry Pi or BeagleBone Black for these kind of projects because the Arduino doesn’t have enough juice to handle the complexities of pictures and, more so, videos. However, if the …
Read More »How to Use a Digital Motion Sensor with Arduino
I’ve already covered the basics of how a PIR motion sensor work on my previous tutorial. DFRobot was kind enough to send me a free sample of their PIR motion sensor. So naturally, I got to play with and write about it today. Two of a Kind It turns out, …
Read More »Interrupt Tutorial II - Arduino Timer Interrupt
In my previous Arduino Interrupt tutorial, I showed how to use the external and pin change interrupts for the ATMega328p-based Arduinos. There, I showed an example where pressing a button halts the normal program execution at any time and serves another routine (Interrupt Service Routine or ISR). In this article, …
Read More »Arduino Interrupt Tutorial
An interrupt, in microcontroller context, is a signal that temporarily stops what the CPU is currently working at. Programming using interrupts is very different from the usual top-to-bottom sequence in an Arduino program and thus can be confusing for some. This article aims to introduce how an interrupt works and …
Read More »Arduino RGB LED Tutorial
A RGB LED is a special light-emitting diode that can produce 16 million possible colors, all by combining the colors red, green, and blue in varying intensities. This tutorial will show you how to use a RGB LED with Arduino. Introduction to RGB LEDs RGB LEDs typically have four pins …
Read More »Using an Arduino Turbidity Sensor
Turbidity refers to the haziness of a fluid caused by the increased number of very tiny particles which, individually, is invisible to us. Moreover, turbidity measurement is important in testing the quality of water. This Arduino turbidity sensor tutorial provides a guide on how to implement this setup using a …
Read More »How to Use a Microphone with Arduino
How can an Arduino capture sound? Just like how your computer captures sound: through a microphone. In this Arduino microphone tutorial, we’ll look at how a sound sensor works. Also, we’ll build a simple clap switch project as an example of how to use a microphone with Arduino.
Read More »How to Use I2C LCD with Arduino
The classic parallel LCD sometimes poses a problem for projects that use a lot of Arduino pins. The least amount of pins you can use is six, excluding the power pins and the potentiometer contrast adjust (optional) pin. Thankfully, by using an I2C LCD "backpack", the pin use can be …
Read More »Arduino BMP085 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 …
Read More »Vibration Sensor Tutorial
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.
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