Just bought a Pingmaster

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gkubed

17 Nov 2017, 20:21

lancre wrote: I believe they're from 1984. But I went the fully external Pro Micro / Hasu route so haven't opened the case. Glad you like it!
By that, do you mean that you integrated it into the (rather large) DE-9 plug that can be opened, as you mentioned in your second post?

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lancre

17 Nov 2017, 21:47

No I put the plug into a DB9 breakout board and wired it up to the Pro Micro. The plug is quite large for what it is (which is why I thought it might be possible), but it's not large enough on the inside to house the Pro Micro.

You could take out the 2 screws from the plug and dismantle it to save space on a potential enclosure. There are no springs or anything so it's trivial to put it back together. After working out that there was insufficient space on the inside of the plug I put it back together but haven't bothered to get an enclosure for it...

I think you'll need this repo for Hasu's firmware if you're modding externally.

https://github.com/tmk/tmk_keyboard/tre ... bm4704_usb

And if you're using the Pro Micro the top parts of this repo (before it gets on to loading Soarer's firmware) will tell you how to get it into bootstrap mode.

https://github.com/iflowfor8hours/61128 ... controller

Stop before you execute this line and replace the .hex file with the .hex that Hasu's firmware throws up after the build process.

Code: Select all

avrdude -p atmega32u4 -P /dev/ttyACM0  -c avr109  -U flash:w:./your/path/to/Hasu/firmware.hex
Capture.PNG
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User avatar
gkubed

21 Nov 2017, 14:34

lancre wrote: No I put the plug into a DB9 breakout board and wired it up to the Pro Micro. The plug is quite large for what it is (which is why I thought it might be possible), but it's not large enough on the inside to house the Pro Micro.

You could take out the 2 screws from the plug and dismantle it to save space on a potential enclosure. There are no springs or anything so it's trivial to put it back together. After working out that there was insufficient space on the inside of the plug I put it back together but haven't bothered to get an enclosure for it...

I think you'll need this repo for Hasu's firmware if you're modding externally.

https://github.com/tmk/tmk_keyboard/tre ... bm4704_usb

And if you're using the Pro Micro the top parts of this repo (before it gets on to loading Soarer's firmware) will tell you how to get it into bootstrap mode.

https://github.com/iflowfor8hours/61128 ... controller

Stop before you execute this line and replace the .hex file with the .hex that Hasu's firmware throws up after the build process.

Code: Select all

avrdude -p atmega32u4 -P /dev/ttyACM0  -c avr109  -U flash:w:./your/path/to/Hasu/firmware.hex
Wow, that's really easy. Tempting, too, because this maintains the integrity of the board in the case that I want to have it as it was manufactured later.

I think I'll go this route, because even while the connection is relatively tacky, if I don't like it I can always just integrate the Pro Micro into the board later. Thanks for the detailed response!

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