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Test & Measurement
How to Build a Weighing Scale Using a Load Cell and a Microcontroller
In this project, we're making a weighing scale using a C8051 microcontroller development kit, a load cell, and the Simplicity Studio IDE. The measured weight will be displayed on an LCD screen....
October 10, 2017
How to Use a Robot to Record and Transfer Audio Signals
This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.
September 15, 2017
Incorporating Microphone Functionality into a Robot System
In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.
September 11, 2017
The Holiday Season Analog Alarm! A Gift-Defending System
Nowhere to hide presents this holiday season? No problem! This alarm will sound anytime a loved one tries to get a sneak peek at his or her surprise....
December 05, 2016
Flash Freeze Photography with an Arduino
Freeze moments in time to easily produce extraordinary close-up pictures with your digital camera, an Arduino, and these simple circuits....
November 14, 2016
How to Build a Touchless MIDI Controller with Arduino
Learn how to build your own touchless MIDI controller using an Arduino... video and code file included.
November 03, 2016
Build Your Own Low-Resistance Meter
This project will show you how to make a device that can measure resistances as low as 0.1 ohms.
October 26, 2016
C-BISCUIT: Schematic Design for the RCB—Power, Stepper
We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t covered in the previous article....
October 07, 2016
C-BISCUIT: Schematic Design for the RCB—Microcontroller, Motor Controller
In this article we’ll take a close look at two sections of the custom-designed control board for the C-BISCUIT demo bot.
September 21, 2016
How to Build a Class-D Power Amp
Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.
August 29, 2016
How to Build a Pi Camera
In part 8 of the "Building Raspberry Pi Controller" series, readers will learn how to attach a camera board to a Raspberry Pi and write Python code for photo imaging projects....
August 01, 2016
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
Building an RC Robot Using a Wheelchair Base—Part 2
The Sabertooth 2x32 motor controller can be used to create a robust drive platform for your next robotic endeavour. This article uses an Arduino Uno to communicate with the Sabertooth 2x32...
July 13, 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
Build Your Own Negative Voltage Generator
Everyone needs a negative voltage rail eventually, but most only have a single rail supply. This project will show you how to build a negative voltage generator that runs off a single rail...
June 07, 2016
Build an Arduino-Controlled AM/FM/SW Radio
Combine the Si4844-A10 analog-tuned radio receiver with an Arduino to make a full-featured multiband radio.
May 26, 2016
Digital-to-Analog Conversion with the SAM4S Peripheral DMA Controller
Part Three in this three-article series shows you how to generate values for a discrete sinusoid and continuously convert this data into an analog signal without overburdening the CPU....
May 09, 2016
Understanding and Using the SAM4S Digital-to-Analog Converter
Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical characteristics, and the application programming interface....
May 04, 2016
DMA Digital-to-Analog Conversion with a SAM4S Microcontroller: The Timer/Counter
Part One in this three-article series focuses on using the SAM4S timer/counter peripheral to precisely control the DAC’s sampling rate....
April 28, 2016
Use a DC Motor to Power LED Headlights on a Longboard
Build a generator-powered LED headlight for a longboard for very cheap.
April 20, 2016
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