Learn how to build a setup that will help you predict a battery's performance as it ages using a Trinket M0 and software algorithms.
Learn how to build a setup that will help you predict a battery's performance as it ages using a Trinket M0 and software algorithms.
Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.
Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.
This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.
This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.
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.
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.
In this article, I'll show you how I used one of my SIM900A GSM modules to send temperature and relative humidity to my…
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.
This project will show you how to make a device that can measure resistances as low as 0.1 ohms.
This project will show you how to make a device that can measure resistances as low as 0.1 ohms.
We’ll discuss some important layout and manufacturing concepts as we look at the PCB for the Robot Control Board.
We’ll discuss some important layout and manufacturing concepts as we look at the PCB for the Robot Control Board.
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.
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.
Continuing the C-BISCUIT series, this article outlines how to populate and test the surface mount PCBs designed in a…
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.
Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical…
Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical characteristics, and the application programming interface.
Use DS3231M RTC alarm functions to make programmable, time-based, switches to power devices on and off at precise times.
Use DS3231M RTC alarm functions to make programmable, time-based, switches to power devices on and off at precise times.
Build a simple solar powered battery charger for Ni-MH batteries.
Build a simple solar powered battery charger for Ni-MH batteries.
In this project, Jason Poel Smith builds a battery backup system that you can use for small electronics to make sure that…
In this project, Jason Poel Smith builds a battery backup system that you can use for small electronics to make sure that they never lose power.
In this project, we use an Arduino and an attached charging circuit to control the charging of NiMH rechargeable batteries.
In this project, we use an Arduino and an attached charging circuit to control the charging of NiMH rechargeable batteries.
Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an…
Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an EFM8 microcontroller, a DAC, and the MAX31855 thermocouple-to-digital converter.
What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for…
What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for 9 voltages from 2.5V to 15V on the same PCB design.
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel…
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.