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geekhack Projects => Making Stuff Together! => Topic started by: tjweir on Wed, 18 March 2015, 08:44:31

Title: I need help tracing the Viper columns
Post by: tjweir on Wed, 18 March 2015, 08:44:31

I'm adding Viper support to TMK[1] and my lack of experience is making it hard to map the columns.

Given the notched bottom of the PCB, I not sure of the columns of the bottom row.
There are 6 switch positions, and I think it starts on Column B, but I'm not sure I'm tracing the paths correctly.

Am I explaining this correctly?  Can anyone help?

Column A - Left side when looking at the keys
(http://i.imgur.com/v744sar.jpg)

Column N - Right side when looking at the keys
(http://i.imgur.com/9sp2LZJ.jpg)

Whole PCB
(http://i.imgur.com/NfB3ZKr.jpg)

[1] -https://github.com/tjweir/tmk_keyboard

Title: Re: I need help tracing the Viper columns
Post by: slickmamba on Wed, 18 March 2015, 08:51:05

No idea how to help you, but I am super intrigued! 

Title: Re: I need help tracing the Viper columns
Post by: tjweir on Wed, 18 March 2015, 08:55:48

Quote from: slickmamba on Wed, 18 March 2015, 08:51:05

No idea how to help you, but I am super intrigued! 

:)

My brute force attempts fell short, so I need some help from those who know better.

Title: Re: I need help tracing the Viper columns
Post by: phoenix1234 on Wed, 18 March 2015, 09:02:56

Maybe someone already did can help you. But if you want to do it on your own, I think the best way to trace is to have a digital multimeter, it will help to trace where electrical connections have been connected. Otherwise, you can ask the Viper owner to provide the schematic of the PCB.

Title: Re: I need help tracing the Viper columns
Post by: tjweir on Sun, 22 March 2015, 17:40:50

Ok, I grabbed my multimeter and traced the columns. 

Time to get tmk working.