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element14 presents

70 Posts authored by: airbornesurfer
After a brief departure onto a couple of other projects, I'm back to complete Project Mego--my 2XL-Google Assistant conversion--and I needed to come up with a way to change the voice from one of the stock Assistant voices to more of a robotic sound. So, I started playing with the Velleman MK171 Voice Changer Kit as a jumping-off point for my own voice modulator. But before I could play with the circuit, I needed to assemble it! ...
One of the first challenges with restoring the 2XL at the heart of Project Mego is repairing and restoring the malfunctioning 8-track player mechanism in his belly. This particular unit has a few broken pieces and a misaligned head, so I'll point out how to correct those minor issues while illustrating a few other interesting features of this "ancient" format. PARTS/TOOLS: Rotary potentionmeter switch De-Ox-Id spray ...
This segment was cut from the completed project video, but I thought it interesting to have a look inside one of these cheapo voice changer toys that retails for way more than it should. I'm certainly nota531016, but I like to pretend every so often ...
After studying the Velleman MK171 Voice Changer kit that I assembled in a previous video, I wanted to play around with some elements of the circuit to see if I could customize it. In this video, I'll walk through the circuit schematic and explain how the voice changer works before replicating the design on breadboard, then soldering it to protoboard.   PARTS/TOOLS:  https://www.newark.com
experia/bzx79-c3v0-133/zener-single-diode-3-v-500-mw/dp/96K7357 https://www.newark.com/multic ...
When you're building a project that has multiple modules with different voltage requirements, you may need to build a 5V buck converter. This video walks through the process to build a converter that will take up to 40V input down to 5V at up to 5A, and you can get the schematic as well as the necessary parts in the show notes below! PARTS/TOOLS: https://www.newark.com/tdk/slf10145t-220m1r9-pf/power-line-ind-22uh-1-9a-20/dp/90R0605 https://www.newark.com
ichicon/upw1c181med1td/aluminum-elect ...
****EPISODE TITLE**** element14 presents  |  AirborneSurfer's VCP Profile |  Project Videos   Arduino sketch://Project ColorTyme //Hexadecimal Color Code Clock //CC-BY-SA Matthew Eargle //element14 Presents http://element14.com/presents //AirborneSurfer Productions http://airbornesurfer.com //Included Libraries #include <Wire.h> #include <LedControl.h> #include <SPI.h> #include <Adafruit_RA8875.h> #include <RealTimeClockDS1307.h> /* Setup MAX ...
****EPISODE TITLE**** element14 presents  |  AirborneSurfer's VCP Profile |  Project Videos   In a previous project, we looked at how to attach a TFT LCD screen to a Raspberry Pi to build a small-form-factor project. But what if your project doesn't need quite as much horsepower? What if you just need to display shapes and colors on a screen with no operating system and nearly instant boot times? This is where a TFT LCD screen on Arduino comes in handy. In this video, we'l ...
****EPISODE TITLE**** element14 presents  |  AirborneSurfer's VCP Profile |  Project Videos   The Arduino platform is great for making LEDs blink and driving small displays, but what happens when you need to display more complex information? For Project ColorTyme, I need to drive 6x 14-segment "starburst" style alphanumeric LED displays, but pins are at a premium. To solve the problem, we'll incorporate the MAX7219 LED display driver; however, it's an imperfect solution: T ...
****EPISODE TITLE**** element14 presents  |  AirborneSurfer's VCP Profile |  Project Videos   Previously, we looked at how to build a simple DIY Arduino clock. Unfortunately, if power to the clock is disconnected, the whole thing has to be reset. To solve that problem, we're going to add an Arduino battery backup real time clock module based on the DS1307 RTC package. Instead of purchasing a pre-made part, we'll walk through how to build a DIY Arduino RTC module from scrat ...
*****TITLE HERE***** element14 presents  |  Matt Eargle's VCP Profile |  Project Videos   Clocks are a rite of passage for hardware hackers, and with this video you can start working on your DIY Clock merit badge using the Arduino platform to build a basic Arduino clock. This project builds on the Arduino Fortune Teller project and teaches programming concepts like timing and actively updating a display, so you can use it as a springboard for many more complicated project ...
****EPISODE TITLE**** element14 presents  |  AirborneSurfer's VCP Profile |  Project Videos   Where does one person's interpretation of a color end and another person's begin? How do we universally define colors displayed on modern screens? What is the equivalent of Pantone for digital documents? In this video, we'll explore how color is displayed on modern LCD/LED screens before going into depth on how hexadecimal color codes work as a technological standard to convey col ...
EPISODE TITLE AND LINK element14 presents  |  AirborneSurfer's VCP Profile |  Project Videos   Hexadecimal notation may look daunting, but with a little know-how and the right perspective, it can become extremely easy to learn how to read hex numbers. In this video, we'll learn how to read hexadecimal numbers, how to count hexadecimal numbers, how to write hexadecimal numbers, and how to convert hexadecimal numbers. ...
Here are the BASIC programs I included in my demo of the RC2104 project on element14 presents   10 PRINT TAB(30);"SINE WAVE" 20 PRINT TAB(15);"CREATIVE COMPUTING MORRISTOWN, NEW JERSEY" 25 PRINT TAB(15);"ADAPTED FOR ELEMENT14 PRESENTS M. EARGLE 2020" 30 PRINT: PRINT: PRINT: PRINT: PRINT 50 B=0 100 REM START LONG LOOP 110 FOR T=0 TO 40 STEP .25 120 A=INT(26+25*SIN(T)) 130 PRINT TAB(A); 140 IF B=1 THEN 180 150 PRINT "element14" 160 B=1 170 GOTO 200 180 PRINT "Presents" 190 B=0 200 NEXT T 999 ...
Raspberry Pi 2XL Robot Assistant Part 1 element14 presents  |  Matt Eargle's VCP Profile |  Project Videos   Following up to my primer on using Snowboy for custom Google Assistant wake words, in this video, I'll walk you through using Snowboy's "Hotword As A Service" to train your own wake words. PARTS/TOOLS: https://www.newark.com/adafruit/4080/google-aiy-voice-kit-for-raspberry/dp/96AC6443?st=google%20aiy%20voice https://www.newark.com/raspberry-pi/rpi3-modbp/sbc-arm ...
Raspberry Pi 2XL Robot Assistant Part 1 element14 presents  |  Matt Eargle's VCP Profile |  Project Videos   The new voice assistants like Siri, Cortana, Alexa, and Google (itself?) are becoming more and more ubiquitous as we race toward a "Star Trek"-style omnipresent computing interface, but what if you don't like invoking the name of your chosen corporate overlord when you use the assistant's features? What if you could speak "Okay, Computer" into an Apple mouse like S ...