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DIY Smart Watch

DIY Smart Watch

  Smart Watches are taking quite a while to catch on. I think when the price comes down to the $50 range or they are included with your smart phone I think we will see mass adoption but until then I think they will remain rare.

Published: February 27th, 2014

Open Bitcoin ATM

Open Bitcoin ATM

This Open Bitcoin ATM might be a simply way to distribute Bitcoin in establishments that want to use it for sales. Just make sure no one walks away with the big box of cash.

Published: February 27th, 2014

Remote Flower Watering Project

Remote Flower Watering Project

Lucy Matchett, Nicole Yi Messier, and Joselyn McDonald used Spacebrew to make this Remote Flower Watering Project. This fun little project uses a photoresistor to detect when a watering cup has been lifted off the base and sends this information to the remote unit, the remote unit then pours the water that has been prepared onto the plant using a small servo motor.

Published: February 27th, 2014

Inductive Loop Vehicle Present Sensor

Inductive Loop Vehicle Present Sensor

When leaving a parking garage have you ever wondered how the gate knows how to close only after you have pulled out? The magic lies below the concrete, there is an inductive loop in the ground under the gate arm.

Published: February 27th, 2014

Long Nose Robot of Death

Long Nose Robot of Death

  Ok, it isnt actually not a Long Nose Robot of Death even if that is what it looks like Its a Raspberry Pi controlled Tank that can shoot BBs.

Published: February 17th, 2014

Intercom made from a Pair of Corded Phones

Intercom made from a Pair of Corded Phones

Got some old corded phones kicking around from the days before 3 and 4 handset cordless system took over? Why not make them useful again by making an intercom from the.

Published: February 17th, 2014

Fluke 196B Handheld ScopeMeter Repair

Fluke 196B Handheld ScopeMeter Repair

Over at The Signal Path Blog  Shahriar Shahramian has a look at a Fluke 196B Handheld ScopeMeter that he purchased from an eBay seller. The meter was purchased for a few hundred dollars and was listed with a fault that is doesnt power up.

Published: February 12th, 2014

DIY Lab Power Supply

DIY Lab Power Supply

Kerry Wong had a few huge heat sink kicking around, instead of selling them for scrap aluminum he decided to build some useful lab equipment. The first one went into the DIY Electronic Load and the second was used in his DIY Lab Power Supply.

Published: February 9th, 2014

HP 3468A Bench Multimeter Repair

HP 3468A Bench Multimeter Repair

  There are a number of great older bench meters out there that would be perfect when upgrading from a hand held meter when working on the bench.

Published: February 9th, 2014

Use an LED as a Sensors

Use an LED as a Sensors

Michael Beyhs has a new site called Electrical Engineering and More, his first project shows us how to Use an LED as a Sensor. LEDs are normally used to produce light but like many other electrical items it works a bit in the other direction, meaning that it will produce a small voltage when you shine light into it.

Published: February 9th, 2014


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