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  • Hack Chat Transcript, Part 1
  • Log     from Amateur Rocketry Hack Chat
  • Dan Maloney10:27 AMHi @Kip Daugirdas! Welcome aboard! mark joined  the room.10:52 AM bsigler joined  the room.11:24 AM Alex Mi joined  the room.11:31 AM Alex Mi11:32 AMmy question :) - how people decide between liquid fuel and solid fuel...

  • Hack Chat Transcript, Part 2
  • Log     from Life at CERN Hack Chat
  • caladan12:39 PMI think it's C++ on CentOS 7 daniel valuch12:39 PMactually, guess what it was Rosy Schechter12:39 PMHere are the libraries for data analysis: https://root.cern/ daniel valuch12:40 PMwhat was the mean time between failures when LHC started...

  • Securing the LEDs
  • Log     from FLED
  • Now that we had most of the LEDs it was time to start fixing them to the backboard.First off we hot glued all the LEDs into place on the backboard which was a sheet of plywood. This took a little while but John P, Tom M, and Albert all pitched in and...

  • Software stack
  • Log     from FLED
  • The display is looking great, but we really need to make this into more than just a pretty rainbow colored matrix.To do this we decided we wanted to be able to open up the control of the lights to all our developers, and we want to be able to feed data...

  • Nginx and Memcached
  • Log     from FLED
  • With FLED we are trying to make a visualization platform, somewhere all our apps and monitoring tools can send data and where we can then use that data to make interesting visualizations.As such we need to be able to accept data from a variety of sources...

  • A new start....
  • Log     from FLED
  • So the LEDs have died again. Typical really, we fixed them up just two days ago replacing another blown unit, but it once again died. These really have been the worst LEDs I have ever encountered, bright and cheap, but completely unreliable.Therefore...

  • 1728 leds is a lot more data than you think
  • Log     from FLED
  • In the original FLED implementation we had a Raspberry Pi inside the case. This Pi ran a NodeJS application that executed the animation code written in JavaScript and provided a web interface for users to create animations within. This all worked fairly...

  • Success!
  • Log     from FLED
  • After much soldering....and a little debugging we managed to get the array lit up.If you look carefully you can see the grounding braid we used as a power and ground bus at either end of the strips. We then simply hooked up data and clock (these are...

  • The Design And Construction Of A Backplane
  • Log     from MC68000 Computer
  • This entire project is a little bit of an odd bird. In terms of electronic sophistication, it’s not too different than any of the other homebrew computers you might see on Hackaday. This isn’t a project that will just sit on my workbench until I die...

  • Theory of RAM and ROM modules
  • Log     from MC68000 Computer
  • Although it might make sense to start this project by building a CPU module first, I decided it would make more sense to start with the memory for this system. This serves two purposes: as an explanation of how the 68000's memory-mapped I/O works, and...

  • Conclusion
  • Log     from Electric Car Conversion
  • We did it. We took a 1993 Honda Del Sol, and a equally old electric forklift and merged them together into something we like to call the Delsolectric Car.→InsertImageIt might not be pretty. But it worked. We even managed to get it up to 100km/h on the...

  • A little Arduino goes a long way...
  • Log     from L.A.S.E.R. Tag Control
  • Yes yes, I know, Arduinos are lame. But... they are incredibly handy for getting certain things done really quickly.→InsertImageFor the control system we need to emulate a USB keyboard, it just so happens the Arduino Micro is especially good at this....

  • LayerOne 2014 Conference Badge
  • Log     from LayerOne 2014 Conference Badge
  • rev3 board, rerouted and moved components around to try to be closer to final design and clean up noise, split ground planes.Changed SPI's to use the hardware SPIs of the Cortex, they were all Software SPI before, adding all the names to the pins on...

  • power....
  • Log     from LayerOne 2014 Conference Badge
  • Arko started putting the rev3 board together last night, we usually build the power section first and measure how it looks, make sure none of the power is shorted in the PCB ( it happens). This board has one always on regulator, its a 3.3V LDO  that...
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