This article discusses the ideas involved in measuring and interpreting the current-voltage curves of solar cells, batteries, and unknown materials.
This article discusses the ideas involved in measuring and interpreting the current-voltage curves of solar cells, batteries, and unknown materials.
Low power consumption has become an important design goal in many electronic systems. This article introduces essential…
Low power consumption has become an important design goal in many electronic systems. This article introduces essential concepts and techniques.
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver…
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver IC, three phototransistors, and a few other components will do the trick.
Need to ventilate a room? This article will show you how I made a relay-operated, GPS-timed fan to vent out the moist air…
Need to ventilate a room? This article will show you how I made a relay-operated, GPS-timed fan to vent out the moist air in my boat's cabin. It is controlled with a PIC16F628A and has an LCD.
This article discusses I-V curves for passive components, voltage sources, and current sources.
This article discusses I-V curves for passive components, voltage sources, and current sources.
Finally, we have everything we need for a functional robot. Let’s put the pieces together and see what the C-BISCUIT…
Finally, we have everything we need for a functional robot. Let’s put the pieces together and see what the C-BISCUIT demo bot can do.
Wireless Power Transfer holds the promise of freeing us from the tyranny of power cords. This technology is being…
Wireless Power Transfer holds the promise of freeing us from the tyranny of power cords. This technology is being incorporated into all kinds of devices and systems.
In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.
In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.
In part 2 of the LED saber project, we'll assemble the power and audio systems.
In part 2 of the LED saber project, we'll assemble the power and audio systems.
The brightest blade in the world. Fluid sound effects generated in real time. Any colour, changeable on the fly. If you…
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 closest you can get today.
We’ll continue our discussion of the C-BISCUIT demo bot by looking at portions of the RCB schematic that weren’t…
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.
Having a logic probe handy is always a must for an electronics workshop. But instead of buying one, why not build your…
Having a logic probe handy is always a must for an electronics workshop. But instead of buying one, why not build your own for a fraction of the cost and have it working in an hour?
The C-BISCUIT saga continues as we combine the various system components into a demo bot.
The C-BISCUIT saga continues as we combine the various system components into a demo bot.
Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.
Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.
In this article, we are going to learn some basics about RFID technology and use an Arduino MEGA to a play around with a…
In this article, we are going to learn some basics about RFID technology and use an Arduino MEGA to a play around with a popular RFID module, the ID12LA.
The Sabertooth 2x32 motor controller can be used to create a robust drive platform for your next robotic endeavour. This…
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 controller.
This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1…
This two-part project will begin by showing you how to create a robot base from a used electric wheelchair. Part 1 creates a simple robot platform for use with remote control. Part 2 will develop a platform for use with and Arduino.
Harvesting energy from non-conventional sources has received an increased interest as designers look for alternative…
Harvesting energy from non-conventional sources has received an increased interest as designers look for alternative power sources. Even though the power is usually harvested in small amounts, it is adequate for various low-power applications.
This project details the process by which AC-powered speaker sets can typically be converted to battery power. I'll…
This project details the process by which AC-powered speaker sets can typically be converted to battery power. I'll detail my own projects and provide advice for converting almost any set of speakers.
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