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How to Generate a High-Precision Waveform Using a DAC and a Custom PCB

In this article, we’ll develop firmware that will serve as the basis for high-precision, high-speed signal generation.

December 01, 2017 by Robert Keim

How to Check and Calibrate a Humidity Sensor

How accurate is your humidity sensor? Find out with this project.

November 29, 2017 by Raymond Genovese

The MIT-i Color Blender! RGB LED Color Blending

Blending colors may sound elementary but it is vital in drawing attention to your project with RGB LEDs!

November 08, 2017 by Ryan Jones

Tamper Detection with Differential Inductive Sensing Coils

This article demonstrates the creation of an inductive switch cabinet lock that can detect the movement of a conductive target. The purpose is to create a door that cannot be opened without triggering an alarm.

November 06, 2017 by Mark Hughes

How to Interface an Ultrasonic Sensor with an LCD Using a Microcontroller Dev Kit

Let's interface an ultrasonic sensor and a lighting system! In this project, we'll design a sensor subsystem and then use it in a parking sensor application.

November 02, 2017 by Nick Davis

Arduino Multitasking! How to Use Milli in Arduino Code

Delay statements are great and all, especially for their simplicity, but they can really put a damper on things when trying to multitask your Arduino. Forget delay and hop on the millis() train!

October 11, 2017 by Ryan Jones

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 by Nick Davis

Testing for a Robot’s Collision Detection System with Varying Impact Resistance

We’ll use real collision data to refine the detection algorithm, and even better, we’ll confirm that the system actually works.

September 28, 2017 by Robert Keim

Build a Temperature and/or Humidity Controlled Fan with a Picaxe 08M2 Microcontroller

A Picaxe 08M2 microcontroller and an HIH6030 sensor team up to easily control a ventilation fan using temperature or humidity or both.

September 25, 2017 by Raymond Genovese

How to Protect Your Robot with Automatic Collision Detection

In this article, we’ll develop and test an algorithm for automatically shutting down a robot in response to a collision (or some other violent event).

September 21, 2017 by Robert Keim

Adding an LCD and Keypad to a Tachometer and Speedometer

In part two of the tachometer/speedometer project, we'll add a keypad and LCD for easier user interaction.

September 18, 2017 by Nick Davis

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 by Robert Keim

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 by Robert Keim

F.U.N. with B.L.E.

With all these invisible radio frequencies flying through the air, we should know a little bit about what exactly they are!

September 08, 2017 by Ryan Jones

How to Build a Tachometer/Speedometer with an Optoelectronic Sensor, a Microcontroller, and a Disc

Learn how to make a tachometer and speedometer using a C8051 microcontroller, an optoelectronic sensor, and a spinning disc.

September 06, 2017 by Nick Davis

Gathering and Analyzing a Robot’s Accelerometer Data

An accelerometer can be a valuable addition to a robotics project. This article will show you one approach to generating and analyzing acceleration data.

September 01, 2017 by Robert Keim

Build Your Own Motion Detection System Using an Accelerometer

This project uses a C8051 microcontroller development kit, an accelerometer evaluation board, and Simplicity Studio IDE—all from Silicon Labs—to rather quickly and easily build a motion-detecting alarm system.

August 31, 2017 by Nick Davis

Design a Control Board for a Romi Robot Chassis

In this article, we’ll discuss the hardware design for a robotics PCB, and we’ll write firmware for controlling two DC motors.

August 25, 2017 by Robert Keim

Mitigate Power Failure Programming Issues Using EERAM

In this how-to article, we explore the use of I2C EERAM to save critical program variables when power fails and restore them when power returns to easily preserve program continuity.

August 07, 2017 by Raymond Genovese

Fruit Drums with Circuit Playground’s Capacitive Touch Sensors

Use Adafruit's Circuit Playground to make your own fruity (drum) loops!

August 04, 2017 by Ryan Jones