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. Nice thing about the design is that there are no specialty parts, chances are you have most of the things on hand to get building right now. “The dynamic load steps the load current so that the transient
 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
What happens when a remote control manufacturer makes their hardware robust and easy to hack? It gets turned into an Oscilloscope! Check out the Betty Check – Betty Remote control turned into a multi function electronic tester. If you are have one of these remotes and need some additional information to modify it have a look at this page, it demonstrates much of the hardware in great detail. The
  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. Love the industrial look of the project. The custom PCB looks nicely laid out!  I am thinking the next logical step is to make this project web connected
 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. There are also a ton of other fun features that should have been in place on this phone when it was originally released.Â
This Reverse Geocache called the Captain Herrmano’s Mystery Box packs a ton of sensors into the box and some slick programming brings it to like with a full on treasure hunt. “The housing – that is, the box itself – came from a Nanu Nana store (which is a German chain of stores). Inside of the housing, an Arduino Mega controls and receives information from different sensors and boards
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. snifikino shows us how he made a test jig that is connected to a
