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MCM Electronics Daily Deal and Bulk Bargain

Induction Introduction

Posted April 24, 2017 by Chris

"The induction receiver shown below is very sensitive and can serve a variety of purposes. It is excellent for tracing wiring behind walls, receiving audio from an induction transmitter, hearing lightning and other electric discharges, and monitoring a telephone or other device that produces an audio magnetic field."

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."

LED Color Lamp

Posted April 15, 2017 by Chris

"Here is a new version of the classic color organ, where different color lights are triggered by different frequencies of sound, resulting in a display that flashes along to music. In this case the newer type high intensity LEDs (3000 – 5000mcd) were used along with a very simple discrete transistor drive circuit. The design goals included small size and excellent portability, as well as long battery life."

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;

Robotic Motion Controller

Posted April 9, 2017 by Chris

"The Five-Axis Robotic Motion Controller aims to bring physical input and output closer together through the design purpose-built tools for fabrication, which hopefully leads to many new creative opportunities for designers."

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."

Heatsink Tester

Posted April 3, 2017 by Chris

"It’s quite a common problem when building electronics that some components need cooling which is usually done through some sort of heatsink and optional fans. Choosing the right cooling solution can be a difficult task because the real life behavior of the system is hard to predict or model. In my case I have faced the simple question quite a few times: how much heat can a cooling system dissipate?"

TI Calculator Overclocking

Posted March 31, 2017 by Chris

"….But otherwise, it’s odd because I get to dig through all my old boxes of gadgets and electronics projects. I did, and I found my first hardware hacking project ever, an overclocked TI82."