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DIY Dynamic Electronic Load

DIY Dynamic Electronic Load

Jay_Diddy_B, a contributor on the EEVblog Forum built a great looking DIY Dynamic Electronic Load. He used LT Spice to model the design before it was built, the test result look quite good.

Published: January 20th, 2015

Raspberry Pi Controlling an HCCI Engine

Raspberry Pi Controlling an HCCI Engine

  This HCCI Engine Controlling Raspberry Pi setup reads in 240,000 samples per second. I had never heard of an Homogeneous charge compression ignition (HCCI) engine other than a diesel that simply compressed the air fuel mixture till combustion although I guess that is what some of those cars from the 80 were doing when they would continue to run after the key was turned off? I had always thought that gasoline engines needed a spark plug.

Published: January 20th, 2015

Nokia 3310 Phone Multimeter

Nokia 3310 Phone Multimeter

  If you thought your old phone in your junk drawer was just good for making calls think again. Check out this Nokia 3310 Phone Multimeter that Mastro Gippo built! It does graphing of voltage and currents, has an ohmmeter and a continuity tester.

Published: January 13th, 2015

Goal Light and Horn Project

Goal Light and Horn Project

    JLocke from the Parallax Forum put together this interesting Goal Light and Horn Project that should be a big hit with sports fans. With the press of a button you will get a celebration light and some audio of your choice.

Published: January 13th, 2015

Sound-Activated Outlet

Sound-Activated Outlet

If you have something that needs to be turned on and off why not do it in a unique way. This Sound-Activated Outlet project lets us use an Arduino to monitor for sound patterns and then control an outlet accordingly.

Published: January 6th, 2015

Repair of an Agilent Synthesized Signal Generator

Repair of an Agilent Synthesized Signal Generator

Shahriar from the SignalPath purchased a defective Agilent E4433B ESG-D Signal Generator as a teardown and repair project. Sounds expensive but this piece of equipment is an expensive piece of gear.

Published: January 6th, 2015

Airship Captain MK-I  Steampunk Keyboard

Airship Captain MK-I Steampunk Keyboard

If your computer keyboard looks a bit plain why not kick it up a notch? NeIdan built this Airship Captain MK-I Steampunk Keyboard that was built around an every day keyboard and by spending a bit of time and a few extra pieces you get an amazing data entry device.

Published: January 2nd, 2015

DIY Electronic Christmas Tree

DIY Electronic Christmas Tree

Darbin Orvar built a cool tech electronic Christmas Tree. Best of all the above video will show you how to make your own. For more inspiration you can have a look at her blog.

Published: December 30th, 2014

Bed of Nails Tests Jig

Bed of Nails Tests Jig

If you have a bunch of boards to program and test you have probably thought to automate some of the steps. Wiring all the connectors, hooking it up to a computer, programming in test firmware, running the system through a battery of tests and finally programming in the release firmware can be a tedious task.

Published: December 24th, 2014

Reverse Geocache  Captain Herrmanos Mystery Box

Reverse Geocache Captain Herrmanos Mystery Box

This Reverse Geocache called the Captain Herrmanos Mystery Box packs a ton of sensors into the box and some slick programming brings it to like with a full on treasure hunt.

Published: December 24th, 2014


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