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Author Topic: Which pins for an IBM Model F AT and Pro Micro?  (Read 2370 times)

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Offline Mallowpuff

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Which pins for an IBM Model F AT and Pro Micro?
« on: Wed, 16 May 2018, 09:13:22 »
I'm trying to convert my Model F AT to USB and remap for ANSI. I got the Pro Micro and using the diagram here https://deskthority.net/workshop-f7/how-to-use-a-pro-micro-as-a-cheap-controller-converter-like-soarer-s-t8448.html I soldered 4 wires to it in the correct spots.


I tried to figure out which pins but I think I messed up. I already took the 5 pin connector off the end of the cord that goes into the board.  So the serial connector just goes to 5 separate connectors.

And I've actually cut them off so right now the serial goes to nothing.

The Pro Micro has 4 wires soldered to it, GRD, 5v, data and clock.

I can't find anywhere that says what 4 pins on the keyboards 30 or however many, should be used.

Anyone know?
« Last Edit: Wed, 16 May 2018, 10:07:22 by Mallowpuff »
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Offline fohat.digs

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Re: Which pins for an IBM Model F AT and Pro Micro?
« Reply #1 on: Wed, 16 May 2018, 17:28:54 »
If you still have the head of the cable, you can use a multimeter to determine which pin is associated with which wire.

I don't know whether there is enough detail here to help you:

https://geekhack.org/index.php?topic=48288.msg1034243#msg1034243
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Offline Mallowpuff

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Re: Which pins for an IBM Model F AT and Pro Micro?
« Reply #2 on: Wed, 16 May 2018, 19:14:50 »
I have the head of the cable but the other end that connects to the keyboard is just separate wires and I have no idea which of the wires went into what hole on the connector.

EDIT: I just noticed the colors on the connector picture.

Using that, this picture https://camo.githubusercontent.com/cb0dddff1211614ca31ede8750dac89c72ac9445/68747470733a2f2f6661726d352e737461746963666c69636b722e636f6d2f343235322f33353233393431393934315f326266313331373333625f7a5f642e6a7067 and the Teensy layout, I think I have them in the right spots!
« Last Edit: Wed, 16 May 2018, 19:17:59 by Mallowpuff »
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Offline fohat.digs

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Re: Which pins for an IBM Model F AT and Pro Micro?
« Reply #3 on: Wed, 16 May 2018, 20:21:53 »
Never trust colors!
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Offline Mallowpuff

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Re: Which pins for an IBM Model F AT and Pro Micro?
« Reply #4 on: Wed, 16 May 2018, 20:46:10 »
Quote from: fohat.digs on Wed, 16 May 2018, 20:21:53
Never trust colors!

I'm not really trusting colors. I'm following the wires from the teensy to the board pins in the picture I linked.

If it's not right, I don't really have another way.
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Offline Phenix

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Re: Which pins for an IBM Model F AT and Pro Micro?
« Reply #5 on: Thu, 17 May 2018, 00:13:13 »
please report back if it works and take a pic of it with the pin setup to hwlp others.

maybe consider adding that pic to the wiki?

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