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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."

Built for Humanity: Farmbot Genesis

Posted February 7, 2016 by Chris

"All of our software, hardware plans, and documentation is free for you to download and improve upon. Our Mission: Grow a community that produces free and open-source hardware plans, software, data, and documentation enabling everyone to build and operate a farming machine. Our Vision: Create an open and accessible technology aiding everyone to grow food and to grow food for everyone."

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"

Comparing Different Types of Capacitors

Posted January 29, 2016 by Chris

"Capacitors are filtering devices with are used abundantly in electronic circuits and applications. There are many different types of capacitors. We will discuss some of them in this article."

Office Prank DIY Zombie Selfie

Posted January 27, 2016 by Chris

"To spice up the office around Halloween I decided to make a molded zombie arm that takes pictures of zombie lunch and posted them to the Twitter account @ZombieSelfie."

A Look At Power Line Communication

Posted January 25, 2016 by Chris

"PLC (Power Line Communication) is the technology that allows data transmission over the existing Power Line network. Power Line can be the home power network or the national electricity transmission grid. The data that can be transferred is as diverse as its speed. With speeds of nearly 200Mbps, video transmission, voice, data and any other services can be transmitted successfully."

Automatic Kitty Toilet Flusher

Posted January 23, 2016 by Chris

"Dan suggested building a robot that would flush the toilet at timed intervals throughout the day. In my mind, calling something a ‘robot’ sounds like a sophisticated, possibly sentient being that can do your bidding. But simply put, a robot is a machine that can be programmed to do tasks, like flushing a toilet. An automatic kitty toilet flusher sounded perfect!"

Mini-PCIe microcontroller and make your board too

Posted January 21, 2016 by Chris

"I have just recently finished this board, and been able to test it briefly with Springboard and also with the VAB-820. The picture just below shows the shining blue LED, that is tied to D13 – the 13th digital pin, as most Arduinos do."