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MCM Electronics Daily Deal and Bulk Bargain

FPGA Driven Nixie Tube Speedometer

Posted July 11, 2017 by Chris

".Anyway, Luke Miller over at FPGA Expert recently bought a vintage pickup truck and wanted to trick it out a bit with some custom electronics. He decided to use GPS to measure speed rather than hooking the speedometer directly up to the truck’s sensors, this way the project could be replicated on any make/ model of vehicle. Luke is using a Pmod GPS receiver which he is then running through his Basys2 Spartan-3E FPGA board to make this thing work.quot;

Raspberrypotter

Posted May 6, 2017 by Chris

"Raspberry Potter is an open source project that lets you control things around your room or your house with a magic wand. Imagine if you had a magic wand to control everyday things. Once you make a Raspberry Potter, you’ll be able to do just that – by drawing simple gestures in the air."

PWM Dimmer for LED Lighting

Posted May 4, 2016 by Chris

"I have recently moved to a new apartment and was looking for a PWM dimmer to control some 12V LED strips. I thought that should be easy enough nowadays but it proved more difficult than I thought. All I found either didn’t meet my requirements, were uggly or expensive. So I decided to build my own, tailor-made to my needs."

Keyglove Tech In

Posted April 24, 2016 by Chris

"The Keyglove is an innovative new way to interact with your technology. A wearable, wireless, open-source input device, the Keyglove provides unprecedented flexibility and convenience for gaming, design, art, music, data entry, device control, 3D object manipulation, and even inexpensive telepresence."

Using Internet Of Things To Turn On A Computer

Posted March 23, 2016 by Chris

"I have a computer in my apartment which I mostly use for playing video games, but sometimes I like to access it remotely over the internet to do server tasks for me. The problem though is that gaming desktops use a lot of electricity when they’re running. So running the computer 24/7 would be too wasteful. Instead, I want to be able to turn on my computer from anywhere on the internet; whenever I desire to use it remotely."

Raspberry Pi GPIO driving Servo

Posted March 9, 2016 by Chris

"I have experimented with GPIO on the Raspberry Pi, just turning an LED on and off here. But since then Ben Croston has improved the RPi GPIO Python library to do most of the work in C and I can confirm that it is a lot faster. Driving servo motors requires precise timing, so I decided to see how the Pi would perform this task."

Dual Motor L298 H-Bridge Motor Control

Posted February 9, 2016 by Chris

"Dual Motor L298 H-Bridge Control project can control two DC motors connected to it. The circuit has been designed around popular dual H-Bridge L298 from ST. This circuit has current sense resistors for both H-bridges to provide voltage which enables this board to use in stepper motor applications."

Chip-8 Emulator

Posted February 5, 2016 by Chris

"I’m taking a microprocessor applications class this semester and the final project was to spend the last three weeks making whatever I wanted. I ended up making a Chip-8 emulator for the PIC32MX270F256B microcontroller. Here’s the final circuit."

Designing and Building the Macro Watch

Posted February 3, 2016 by Chris

"Three weeks before the Houston Maker Faire Chris came to me asking if we could whip up a low cost giveaway for the faire. I wanted to giveaway something more than a blinky LED badge since that is the typical electronic swag at Maker Faire. It had to be something that the person would wear and would want to show off to other Makers to spread the word about MacroFab. Blinking LEDs are always necessary though."

Motor Controlled via Eye Tracker

Posted February 1, 2016 by Chris

"This section explains the details of the hardware and software used to create the eye-tracker controlled robot arm. Hardware: USB LEGO Cam, Simulated Eye, and LEGO Mindstorms NXT Robot Hand"