TGI: THE TEENSY GRAPHICS INTERFACE

The February and March 2018 editions of Nuts & Volts featured an article detailing the Arduino Graphics Interface (AGI) project: A general-purpose hardware and software platform that could draw graphical objects onto the face of any analog oscilloscope. A reader challenge to port the AGI concept and software library to the newer and faster TEENSY 3.6 processor resulted in the new and improved TEENSY Graphics Interface that implements a fully operational “CRT Clock” as a working demonstration of a TEENSY based graphics platform.

THE WIDE RANGE PULSE GENERATOR

If you're an electronics hobbyist, you often need to generate pulses and/or logic level signals to check out the operation of your circuit before completing a project. This simple and straightforward device will prove to be a handy addition to your workbench.

MAKING A MODERN RADIO

Design and construction of a basic analog radio has changed drastically over the years. Radio architecture has evolved from multi-tube designs, to transistors, to integrated circuits, and now, today, to a single chip. Here's a look at how digital techniques have changed and improved analog radios.

Tech Forum

Stop by our Tech Forum and share your knowledge with other readers.

PC Joystick Interfacing
Is it possible to connect a joystick to a microcontroller? PIC, PICAXE, etc.

Logging Power Data
We have a Smart Meter installed for our home electric utility billing. Is there a way to read data from it to log usage data to a computer?

Reflow Oven Opinions Needed
Anybody doing SMT reflow soldering at home? Trying to make the switch from TH to SMT. I was wondering what homebrew oven setups people are using and any tips and advice for a newbie.

Audio Replay Device
Is there a device that will continuously “listen” to audio (via a mic or an earphone jack) and allow the user to push a button so that the device will repeat the last 20 seconds of what it just heard?

Proximity Detector

I want to build a backup proximity detector like many newer cars have, as a fun, useful project.

Good Timing
I have an old model automotive timing light that attaches between the #1 spark plug and wire. How can I make an inductive pickup to…

About Resistors
Could someone explain what pull-up and pull-down resistors are, when and how they’re used, and how to calculate their values?

Tuning The Music
Is there a way to vary the speed of a music CD player? I play my instruments along with the recordings and need to vary the pitch slightly to…

HOW TO: SURFACE MOUNT SOLDERING

Some people tend to shy away from using surface mount components in their projects. It seems to be too difficult or needs an array of specialized equipment. In the past, I found myself in this same mindset — wary of using these types of parts. That all changed when…

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