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BubblesToTheLimit 2016-09-11 18:11:26 +02:00
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@ -178,30 +178,21 @@
*** Step 2: Create the columns *** Step 2: Create the columns
The next step is to create the columns by soldering the diodes. There are two options for The next step is to create the columns by soldering the diodes. There are two options for
soldering the diodes. The end where that color-mark is denotes the direction of the diode. The soldering the diodes, all heading towards the switch or all heading away from the
way these diodes are directed is crucial for the algorithm that detects the switch. These two ways are called "row-driven" or "column-driven" and here again it is
key-press. Detecting the key-press can be done in two ways, row- or column-driven. cruciual for the firmware and the actual wiring to be on the same page.
These following sketches are supposed to make the two "driving"-options the ergodox-firmware
has more clear.
[[file:diode-diagram-drive-columns.png]] [[file:diode-diagram-drive-columns.png]]
[[file:diode-diagram-drive-rows.png]] [[file:diode-diagram-drive-rows.png]]
Luckily in our firmware "ergodox-firmware" we have the option that adapts to that. However if If you want to try and use the "tmk_keyboard" firmware which seems to be also interesting you
you want to try and use the "tmk_keyboard" firmware which seems to be also interesting you want to wire the diodes in the according way (check whether the tmk_keyboard firmware expects
want to wire the diodes the other way. This way the "columns are driving". As a side note, if a row-driven or a column-driven setup).
I understand it correctly the tmk_keyboard firmware thinks of rows as columns and the other
way around.
The tmk_keyboard firmware could also be used for this kind of wiring, but it would have to be As you can see in these following pictures I went for the "row-driven" setup. This first
rewritten, maybe in a beautiful way, such that it can also "drive rows". However I didnt go picture doesnt show how the 6 thumb-keys are actually individually connected to the 6 main
ahead and perfom that rewriting, so I had to stick with the "ergodox-firmware". In retrospect columns, but you can see very clearly that the diodes are all wired in the same direction.
I'd wish I had wired the diodes the other way around.
This first picture doesnt show how the 6 thumb-keys are actually individually connected to the 6
main columns, but you can see very clearly that the diodes are all wired in the same direction.
[[file:wiring-create-columns-left.jpg]] [[file:wiring-create-columns-left.jpg]]
@ -248,4 +239,4 @@
[[file:rows-and-columns-connected-to-chips.jpg]] [[file:rows-and-columns-connected-to-chips.jpg]]
How the TRRS jacks are wired for both sides: Good luck!