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2014
i am a newbie, i want to make an old arcade machine, but i don't know how to do i. i still confused by CRT monitor. someone help me please P.S. i have advance monitor (year) 2003. ...
Hydrogen Fuel Cell Bench Test Rig  Background: Hydrogen Fuel Cells! Hydrogen Fuel Cell Controller Demonstration Hydrogen Fuel Cell Polarisation Curve You may have seen some previous posts (above) about my developmental test rig for hydrogen fuel cells.  Well I am pleased to say it has now finished the final stage of prototyping!   I have released the code on github and have tried to make it as user friendly as possible, however I would really appreciate some feedback! Even if ...
Hi all,   The latest update on my project for the chemical engineering nerds out there, how to get a polarisation curve from my fuel cell using a raspberryPi controller.   Unlike batteries, fuel cells do not lose voltage with time because you can keep feeding it fuel. Much like a car engine keeps working until the fuel is completely gone, whereas a battery has a gradual reduction in it's output with respect to it's state of charge (SOC). However, the voltage does vary with load, and th ...
Raspberry Pi Model B+ pops up, and I was surprised to see more USB ports. Adding more peripherals without a secondary USB hub is inspiring. So, I thought about what I could do with more USB ports.   External harddrive, CD drive, Floppy drive? Kind of boring.   How about a bunch of arcade controllers? Word!   Backgound I remember my local arcade used to give free tokens to those who received A and Bs on their report cards. Most of the time it didn’t matter for me. I woul ...
Hello Element 14!   Let me introduce my ongoing Raspberry Pi project: the Leviathan, a Raspberry Pi robot boat.     The robot hull is built from extruded polystyrene sheets by using hot-wire cutter and glue. The hull is covered with glass fibre and epoxy resin to add rigidity and to make the hull water-tight. The boat is powered using 12V 20AH AGM battery to ensure long operating time. Once our software is ready, the boat should be able to execute long surveillance operations ...

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