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MCM Electronics Daily Deal and Bulk Bargain

Triple 8 H-Bridge

Posted August 28, 2017 by Chris

"This is a motor driver board that can drive 2 DC motors in Forward or Reverse with full speed control. It can handle at least 25 amps per channel continuously at 24vdc. I designed it using a basic H-bridge with 4 switches, 1 switch going to positive (+) and 1 switch going to negative (-) for each motor terminal."

Open Source PLC

Posted August 1, 2017 by Chris

"The PLC is a general-purpose controller with a wide variety of applications. It is useful to the engineer, technician, student and hobbyist. All the source files for the small brick OSPLC are provided, including schematic diagrams so that you can build this project yourself or modify it."

Bark Opening Door System

Posted July 14, 2017 by Chris

"Sleep deprivation has been driving me mad recently. And it’s all down to a new member of the family, our new dog. She barks at night when she’s left out. She barks early in the morning when she’s left in. So once I recognized the patterns of her barking, I realized that all I needed was something that would let her out when she needed to go for a pee, usually around 6:30 in the morning."

Robotic Arm Tracks Hand Movement

Posted May 18, 2017 by Chris

"This past week, I made a robotic arm that tracks your hand in free space using a Leap Motion, Arduino, and node.js. It tracks my hand very well. It is able to pick up stuff and set it down with relatively good precision, although there is definitely some room for improvement."

Building A Traffic Light

Posted May 12, 2017 by Chris

"The traffic-light project is something we did at work (Isotope11) to monitor our software projects. We are a software development firm and we handle some large projects that have extensive test code written to make sure newly added features or changes to existing features can easily be tested by running the test code against the changes."

Domotica Controlled Room

Posted April 21, 2017 by Chris

"At first a few months ago I saw this Veear EasyVR speech recognition module, and I bought one on ebay because it looked pretty cool. When I got it I thought it might be a cool idea to control my room with it, and the idea was born to make my bedroom controlled by voice!"

The Seg Bot

Posted April 18, 2017 by Chris

"The Seg-bot is a DIY segway clone that costs around $500 to build. It will attempt to keep the rider upright at 0 degrees (level), so if you lean forward it will travel forward to correct its position – the farther you lean, the faster it will go to correct itself."

DIY Soldering Robot Project

Posted April 12, 2017 by Chris

".The DIY soldering robot which we have been building in our spare time over the past few months is now working and we have been able to solder some test Raspberry Pi expansion board headers with the machine.quot;

OSMC H-Bridge

Posted April 9, 2017 by Chris

"This is my version of the popular OSMC (open-source motor-controller) H-bridge. I have actually built several different models of this board to run various robots with, but this is the most compact version of that board."

Autoresetrrr

Posted April 6, 2017 by Chris

"AutoResetRRR is a kind electronic frustration reducing device: it cuts the power periodically to devices that can go nuts (routers, net cams, servers), but it does give a heads up. If all is well, they can shut down safely and start back up. If not, the power cycle can fix a thing or two."