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Test & Measurement
How To Control a DC Motor with an Arduino
By connecting an L298 bridge IC to an Arduino, you can control a DC motor.
July 07, 2015
Interface a Seven Segment Display to an Arduino
For many applications, there's no need to use a more expensive liquid crystal display to display data. A simple seven-segment display is sufficient....
June 02, 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
DIY Synth Series Part 1 — The Exponential VCO
Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.
August 08, 2016
Breadboard and Program an ESP-01 Circuit with the Arduino IDE
The ESP8266 combination microcontroller/Wi-Fi modules can now be programmed using the Arduino IDE. Here's how!
October 20, 2015
Charles R. Hampton
How to Build Your Own Discrete 4-Bit ALU
In this project, we will build the heart of a simple 4-bit CPU, the ALU (Arithmetic Logic Unit).
August 18, 2016
Update the Firmware in Your ESP8266 Wi-Fi Module
Updating the firmware in an ESP8266 Wi-Fi module can be frustrating! Here's a procedure to reduce the pain.
October 28, 2015
Charles R. Hampton
How to Use a Rotary Encoder in an MCU-Based Project
Learn how to use a rotary encoder in an Arduino project. Rotary encoders are electromechanical, electro-optical or electro-magnetic devices which convert rotational motion into digital or...
November 01, 2015
Using a SIM900A to Send Sensor Data to a Website
In this article, I'll show you how I used one of my SIM900A GSM modules to send temperature and relative humidity to my personal website....
February 23, 2017
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
How to Use the Arduino’s Digital I/O
The digital inputs and outputs (digital I/O) on the Arduino are what allow you to connect sensors, actuators, and other ICs to the Arduino . Learning how to use the inputs and outputs will...
June 05, 2015
Create a Two-Channel Remote Control with the nRF24L01+
This article will give you the building blocks needed to create your own two-channel wireless remote controller.
July 27, 2016
NES Controller Interface with an Arduino UNO
Learn about the NES Controller's data protocol, then use this knowledge to easily integrate into an Arduino Uno.
April 29, 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
Make Your Own GPS Transmitter with the HC-12 Transceiver
Create a tracking device with an HC-12 transceiver, a GPS module, an Arduino, and Google Maps.
November 10, 2016
Building Raspberry Pi Controllers Part 5: Reading Analog Data with an RPi
Learn how to read electrical signals and data from an analog device using the Step Response technique in Part 5 of the Building Raspberry Pi Controllers series....
February 09, 2016
How to Use MAX232 to Communicate Between a PIC and a PC
This is one simple way to control a LED, fan, relay or solenoid with a computer and a PIC.
August 15, 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 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 Use the Arduino Joystick Shield v2.4
In this tutorial we are going to see how to use Arduino Joystick Shield. There are different versions but we'll be using v2.4, which has some interesting features and some extra buttons which...
June 17, 2015
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