Category Archives: Projects

e14 Project: Raspberry Pi 2 Laser Dog Watcher

My dog Penny is one of the best. She has the two critical commands of ‘come’ and ‘stay’ down pat so well that I can go for a run with her off-leash here in Denver. She’s gentile with our newborn … Continue reading

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Using a Raspberry Pi 2 and ownCloud v8 to Control My Cloud Data

A couple years ago, I showed how to setup an ownCloud server on a Raspberry Pi.  The system worked, but there were some performance hiccups. Most importantly was the ability for the system to handle large files and for the … Continue reading

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e14: EAGLE ULPs Every User Should Know

I love designing PCBs. It’s more than just connecting wires in a given area; it’s devising clever ways to make connections while controlling the design for things like EMC, switcher noise, signal integrity, heat dissipation, and many more. But the … Continue reading

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e14: Laser Doorbell in the Cloud!

Sometimes the notion of the Internet of Things (IoT) strikes me as silly; why would anyone want to connect their dishwasher to the internet? But still, I wanted to develop a hobby project that would explore some of the tech. … Continue reading

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e14 Project: A Silent Wireless Laser Tripwire Doorbell

I’ve had a problem since moving into my new place that I can’t hear people knock at my front door. Sure I could get a doorbell at the hardware store, but those things stink. Instead, I thought I’d create a … Continue reading

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Arduino Clones Can Be Better Than Shields

  Arduino is certainly the most popular method of getting info electronics, or at least embedded electronics.  My BlueStamp Engineering students seem to gravitate to them when selecting their projects.  But what about after the first few projects have been created … Continue reading

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Finally, an Arduino library for EAGLE!

Have you put together an Arduino-based circuit and looking to nicely (but easily) document it?  Or perhaps you’re looking to create an Arduino Shield with EAGLE and want to start with the correct dimensions of the headers.  Element14 has come … Continue reading

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Frame-It: A Tool For Wading Through Millions of Parts

Hardware engineers everywhere know how crrazy selecting parts can be. Especially when a part change needs to occur months after intiial part selection. Why was this part so special? What were the nuances of it again?  Frame-it is a chrome … Continue reading

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Chevy Keyless Entry Remote Failure & Repair

I currently drive a 2005 Chevrolet Cobalt which is a remarkable automobile in the most fundamental sense: providing reasonable transportation for a reasonable cost.  She currently has ~102k miles and going strong.  Although this last year I’ve had both of … Continue reading

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E14 Article: EAGLE Autorouter Exploration

Anyone who is getting into PCB design will automatically be intrigued by the autorouter. It would make sense to the outside observer that an algorithm would be able to process millions of iterations of routings that finds the best balance … Continue reading

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