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C-BISCUIT: Schematic Design for the RCB—Power, Stepper

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.


Projects Oct 07, 2016 by Robert Keim
Retro Teardown: The ZX Spectrum

Retro Teardown: The ZX Spectrum

In this Retro Teardown, we will look at the most iconic computer of British History—the ZX Spectrum!


News Sep 29, 2016 by Robin Mitchell
Build an Arduino BLE-Enabled Indoor Air Quality Monitor

Build an Arduino BLE-Enabled Indoor Air Quality Monitor

Use an Arduino/Genuino 101 with iAQ-Core air quality and HIH-6131 temperature/humidity sensors to make an Indoor Air Quality Monitor with Bluetooth low energy (BLE) connectivity.


Teardown Tuesday: Bluetooth Toothbrush

Teardown Tuesday: Bluetooth Toothbrush

Philips has made a Bluetooth-connected toothbrush. Let's tear it down!


News Sep 06, 2016 by Alex Udanis
Build a Wireless “Tipping Bucket” Rain Gauge, Part 2—Adding the Transmitter

Build a Wireless “Tipping Bucket” Rain Gauge, Part 2—Adding the Transmitter

A tipping bucket rain gauge is a clever way to measure rainfall. Learn how to add wireless capability, a PICAXE microcontroller, and an LCD display to your weather station.


Teardown Tuesday: Wi-Fi-Connected LED Bulb

Teardown Tuesday: Wi-Fi-Connected LED Bulb

What's inside of a Wi-Fi-controlled light bulb? Find out in this Teardown Tuesday!


News Aug 16, 2016 by Alex Udanis
Build a Wireless “Tipping Bucket” Rain Gauge, Part 1—Assembling the Bucket

Build a Wireless “Tipping Bucket” Rain Gauge, Part 1—Assembling the Bucket

A tipping bucket rain gauge, an RF transmitter and receiver, a PICAXE microcontroller, and an LCD can make a great addition to your weather station.


Stencil Design for Exposed-Pad Packages

Stencil Design for Exposed-Pad Packages

A properly designed solder stencil helps to ensure successful reflow soldering with IC packages that have an exposed thermal pad.


Teardown Tuesday: IoT Camera

Teardown Tuesday: IoT Camera

In this teardown, we are going to take a look at the insides of an internet-connected camera.


News Aug 02, 2016 by Alex Udanis
Driving LED Arrays with an Arduino

Driving LED Arrays with an Arduino

All you need to know about LED arrays. If you want to learn about them, drive one using an Arduino, or build them, this is the place to start.


Understanding Arduino UNO Hardware Design

Understanding Arduino UNO Hardware Design

This article explains how Arduino works from an electronic design perspective. It also explains the role of every part of the Arduino.


Teardown Tuesday: Wireless Mice!

Teardown Tuesday: Wireless Mice!

Once a luxury item, they are now commonplace. Wireless mice are pretty popular, but what's in them?


News Jun 14, 2016 by Alex Udanis
Reflow Soldering? It’s So Much Easier with a Solder Paste Stencil

Reflow Soldering? It’s So Much Easier with a Solder Paste Stencil

In spite of their convenience, the cost of solder paste stencils has prevented many hobbyists from using them. But the use of polyimide film has brought the prices within reach... if you know how and where to get them.


C-BISCUIT Power: Assembly and Testing of Regulator and Crowbar Circuits

C-BISCUIT Power: Assembly and Testing of Regulator and Crowbar Circuits

Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a previous article using a hot air rework station and other various electronics tools.


Projects May 31, 2016 by Patrick Lloyd
How to Build an Arduino-Controlled AM/FM/SW Radio

How to 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.


Build a Development Platform for a PICAXE 40X2

Build a Development Platform for a PICAXE 40X2

The PICAXE 40X2 features 32 I/O ports and speeds up to 64MHz; a development platform simplifies project design using this workhorse.


Introduction to Capacitive Touch Sensing

Introduction to Capacitive Touch Sensing

In this article, we will take a detailed (but not too detailed) look at the electrical principles that allow us to detect the presence of a human finger using little more than a capacitor.


Do-It-Yourself Soldering Station with an ATmega8

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.


Projects May 05, 2016 by Cezar Chirila
Build a 2-Digit Up/Down Counter with a PICAXE 20M2

Build a 2-Digit Up/Down Counter with a PICAXE 20M2

Counters using 7-segment LEDs are fun and useful projects for scoreboards and other numerical displays; here's one you can build.


Build an Automatic Computer Display Rotator With an Arduino

Build an Automatic Computer Display Rotator With an Arduino

Learn how to build a device which senses when your computer monitor is physically rotated, and automatically tells your computer to rotate the display accordingly.


Projects Apr 12, 2016 by Matthew Davis