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Test & Measurement
Use a Keypad with Your Arduino
Keypads allow users to input data while a program is running. This tutorial shows you how to connect a twelve-button keypad to an Arduino and how to use the library Keypad.h.
June 15, 2015
Reading and Writing Files from an SD Card with an Arduino
In some Arduino applications, it is advantageous to be able to store and retrieve information locally. You can do this with a Secure Digital, or SD, card. An SD card is a non-volatile memory...
June 23, 2015
How to Build the Brightest LED Saber in the World
The brightest blade in the world. Fluid sound effects generated in real time. Any colour, changeable on the fly. If you want to know what it feels like to hold a Lightsaber, this project is the...
October 18, 2016
How to Build a Simple Arduino-Based Calculator
Learn how to use an Arduino in combination with an LCD display and a keypad to make a calculator.
June 13, 2016
How to Use Relays to Control High-Voltage Circuits with an Arduino
To control high-voltage or high-power circuits with an Arduino, you have to isolate them from the Arduino with a relay. Here's how!
June 11, 2015
Jennifer A. Diffley
Measuring Temperature with an NTC Thermistor
For this article, we are only concerned with one type of sensor that can measure temperature. This sensor is called a thermistor.
August 15, 2016
Arduino Motor Shield Tutorial
A tutorial for the Arduino Motor Shield with a simple project. The motor shield has quite a few features such as current measuring and the ability to drive a single stepper motor....
September 23, 2015
Make a Web Server with ESP8266
In this project, we first examine how to install an ESP8266 add-on on Arduino IDE and then we make a configurable web server with an ESP8266 and show the simplicity of this process....
July 05, 2017
Mohammad Amin Karami
Keep Your Cool: Monitor Temperature with an Arduino
The LM35 is an ideal temperature sensor for measuring ambient temperature. It provides a linear output proportional to the temperature, with 0 V corresponding to 0 degrees C and an output...
June 28, 2015
How to Build Your Own Function Generator Using Analog Devices’ AD9833
Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.
January 17, 2018
Reading Sensors with an Arduino
The ease with which an Arduino can obtain sensor values is one of the features that makes it so useful.
June 18, 2015
Build Programmable Time-based Switches Using a Real Time Clock
Use DS3231M RTC alarm functions to make programmable, time-based, switches to power devices on and off at precise times.
April 07, 2016
How to Eliminate Ground Loops with Signal Isolation
This project explains how to isolate signals to eliminate ground loops in electronic systems.
January 29, 2016
Capturing IMU Data with a BNO055 Absolute Orientation Sensor
The BNO055 is an absolute orientation sensor from Bosch that combines sensor data and a microprocessor to filter and combine the data, giving users their absolute orientation in space....
March 22, 2017
An Arduino-Controlled Light Sensor
Monitoring the output of a light-dependent resistor, or photoresistor, allows the Arduino to know how light or dark it is. When the light falls below a certain level, the Arduino turns on a...
June 01, 2015
Do-It-Yourself Soldering Station with an ATmega8
The mighty soldering iron. If you need one, want one, or just love to build stuff, then this project is for you.
May 05, 2016
Make a Wireless Thermometer with Arduino
Learn how to use a 433MHz RF module with an ATMega 328P-PU. In this article, we'll make a circuit with a DHT11 sensor and a RF transmitter. We'll also make a receiving circuit with a 433MHz RF...
October 29, 2015
How to Build a Wall-Following Robot
This is the final part in a series of articles on building a robot that can follow lines or walls and avoid obstacles!
December 01, 2015
How to Use RTC with Arduino and LCD
This article will show you one way of making an accurate clock by using the Real Time Clock IC DS1307. The time will be shown on a LCD display....
September 21, 2015
Ghostbusters Toaster—A Solenoid Lesson
With the help of some solenoids, the Dancing Ghostbusters Toaster really topped off my Halloween costume this year!
October 24, 2016
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