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NEW: Screw Terminal Board for Propeller Platform — Parallax Forums

NEW: Screw Terminal Board for Propeller Platform

Nick McClickNick McClick Posts: 1,003
edited 2010-03-17 00:26 in Propeller 1
The idea of the TermBoard is to give you a more sturdy connection than a breadboard, but still give you flexibility to change wiring. It uses 16 sets of Molex® Terminal Blocks to connect P0..P27, Vin, V50, V33 and Ground and has a standard shortboard footprint with matching mounting holes. Here it is on top of the upcoming Propeller Platform SD;

4424297100_510c586e52.jpg
project page


Of course, it also fits just fine on the Through-Hole Propeller Platform. It's also nice when connecting un-tinned braided wires - here it is connected to WBA's TH1M Temp-Humidity sensor and a power supply I picked up at Halted:

4423532427_5f0e7a26af.jpg

Anyway - more info on the project page. I also put up a few more photos on flickr.

As usual, the design is available under the MIT license. Design files are available for download on the project page. Let me know if you have any questions!

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Comments

  • TonyWaiteTonyWaite Posts: 219
    edited 2010-03-11 18:53
    @Nick

    I see that you supply a DIY electrocution kit with every model ...

    Get the casing back on that Mains PSU before there's a nasty accident!

    T o n y
  • Nick McClickNick McClick Posts: 1,003
    edited 2010-03-11 19:02
    Ha!!!

    Sadly, my power supply death-trap came without a case, so I don't use it. But I'm sure 120VAC @15A would really 'light up my life'.

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  • LeonLeon Posts: 7,620
    edited 2010-03-11 20:02
    Of course, you only have that wimpish 115V over there. Tony was probably thinking of our 240V, that's a real mains supply. smile.gif

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  • jazzedjazzed Posts: 11,803
    edited 2010-03-11 20:15
    Leon said...
    Of course, you only have that wimpish 115V over there. Tony was probably thinking of our 240V, that's a real mains supply. smile.gif
    Must be another wondrous source of Brit Pride wink.gif Is that 240 @ 50Hz?
    We do use 220 @ 60Hz in the US for big house-hold appliances and 110 for everything else ....

    Nick, you've been on a roll lately. Must be nice having a partnership on those boards with Jon and "free-press" advertising.

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    Short answers? Not available at this time since I think you deserve more information than you requested.
  • Nick McClickNick McClick Posts: 1,003
    edited 2010-03-11 20:42
    @jazzed - There are still more in the pipeline! Jon definitely helped kickstart things, although he's actually only done 3 modules (Propeller, LCD UI and DMX IO). The most recent was the DMX IO, which came out in October. He's working on a really awesome module, though - I think it will be in his next column.

    A lot of modules were published by designers on the site - James Long, mctrivia, rayman, Tim S., and so on. I've done a few designs, too.

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  • mctriviamctrivia Posts: 3,772
    edited 2010-03-11 21:05
    50hz power wastes a lot.

    Industrial companies in north america usually use 3 phase 600v or 347v single phase.

    120v single phase in homes. The 240v is achieved by using a second phase that is 180 deg out. Or 208v by using a phase that is 120 deg out.


    I missed this board design. Look good though spring connectors would have been nicer

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  • Toby SeckshundToby Seckshund Posts: 2,027
    edited 2010-03-12 07:38
    I used to work at a transmitter station that took the three phase 11KV strait onto the full wave rectifiers, strait onto the PA stage anodes. They had to use 50Hz phase delays to stagger the onset of the arc rectifiers or it put holes into the mains. There was so much RF in the air that anything metal, longer than a couple of feet, would talk (usually Russian , or simular)

    The dangerous bit of that PSU is the DC Volts across the cap

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  • Nick McClickNick McClick Posts: 1,003
    edited 2010-03-12 18:50
    Whenever I see caps that big, it always feels pretty sketchy. I've only been shocked once, but it wasn't fun.

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  • yarisboyyarisboy Posts: 245
    edited 2010-03-12 20:26
    I used to work in a copper plating facility making copper foil for our circuit boards. They took 12,000 volts and rectified it down to 2 to 5 volts DC. The copper buss bar into the room for the platters was about 1 foot square in cross section. When 30,000 amps was flowing the magnetic field would turn a crescent wrench in your back pocket until it was on the flux line. Watches with a second hand escapement would stop while you were in the rectifier room even if they were electronic. At that gauss level even flowing blood will be effected.

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  • VaatiVaati Posts: 712
    edited 2010-03-15 21:20
    Hmmm.... Could you send me the board files for this? I am planning on making a module similar to this for a CNC Stepper Motor Controller for a milling machine, and it would help to have a basic design to start from.

    EDIT: Not sure if it was already there, but I found the .dip file on the project page. I have diptrace installed, but the file doesn't open and an error message pops up saying "Format is incorrect!" Do you have it in a different file format (preferably eagle) that you can upload?

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    Quit buying all those fixed voltage regulators, and·get an Adjustable Power Supply·for your projects!· Includes an LED testing terminal!

    (no longer new) SD Card Adapter·Now available!· Add extra memory to your next Propeller project with ease!

    Post Edited (Vaati) : 3/15/2010 9:48:43 PM GMT
  • Nick McClickNick McClick Posts: 1,003
    edited 2010-03-17 00:26
    It was there. I attach the dip files to the project so I don't lose them myself!

    Nope, I don't have an eagle version of the file. You just need to download the latest version of diptrace to read the file.

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