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Fixed TRRS cable name typo in README 

The word TRRS was misspelled as TTRS, making it difficult to identify this part.
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joe-warren 2017-05-19 10:49:51 +01:00 committed by GitHub
parent 56866216c3
commit 3a852ea99d
1 changed files with 6 additions and 6 deletions
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guide/README.org
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@ -30,9 +30,9 @@
- The main controller (right half) - The main controller (right half)
- A Teensy 2.0, I got that one from here: https://www.pjrc.com/store/teensy.html - A Teensy 2.0, I got that one from here: https://www.pjrc.com/store/teensy.html
- The chip, connectors and cable to give life to the left half - The chip, connectors and cable to give life to the left half
- TTRS cable and jacks - TRRS cable and jacks
- Got my TTRS cable from here: http://www.digikey.de/product-search/de?keywords=839-1257-ND - Got my TRRS cable from here: http://www.digikey.de/product-search/de?keywords=839-1257-ND
- Got my TTRS jacks from here: http://www.digikey.de/product-search/de?keywords=CP-43514-ND - Got my TRRS jacks from here: http://www.digikey.de/product-search/de?keywords=CP-43514-ND
- MCP23018 16 bit IO Expander - MCP23018 16 bit IO Expander
- Got mine from here: http://www.digikey.de/product-search/de?keywords=MCP23018-E%2FSP-ND - Got mine from here: http://www.digikey.de/product-search/de?keywords=MCP23018-E%2FSP-ND
@ -45,7 +45,7 @@
| teensy 2.0 | 30 | | teensy 2.0 | 30 |
| switches | 60 | | switches | 60 |
| usb cable | 10 | | usb cable | 10 |
| IO Expander, TTRS jacks and cable | 30 | | IO Expander, TRRS jacks and cable | 30 |
|-----------------------------------+------| |-----------------------------------+------|
| overall cost | 300 | | overall cost | 300 |
#+TBLFM: @9$2=vsum(@2$2..@8$2) #+TBLFM: @9$2=vsum(@2$2..@8$2)
@ -217,7 +217,7 @@
in hexadecimal) which makes great sence, since the MCP is left to the Teensy and we read from in hexadecimal) which makes great sence, since the MCP is left to the Teensy and we read from
left to right. left to right.
- When debugging this and using the ergodox-firmware, both sides have to be wired completely - When debugging this and using the ergodox-firmware, both sides have to be wired completely
and actually with the TTRS connected, dont expect the keyboard to work before that. The reason being is how and actually with the TRRS connected, dont expect the keyboard to work before that. The reason being is how
the ergodox-firmware stops completely if either the Teensy or the MCP weren't initiated the ergodox-firmware stops completely if either the Teensy or the MCP weren't initiated
properly. properly.
- In the circuit-diagram the columns on the left side (MCP side) actually go from GPA5 to INTA - In the circuit-diagram the columns on the left side (MCP side) actually go from GPA5 to INTA
@ -225,7 +225,7 @@
- The LEDs are handy for debugging, definately go ahead and connect those. When the keyboard - The LEDs are handy for debugging, definately go ahead and connect those. When the keyboard
starts successfully two of the LEDs light up shortly. starts successfully two of the LEDs light up shortly.
- From the Teensy over to the MCP go exactly 4 connections. The blue, the red and the two green - From the Teensy over to the MCP go exactly 4 connections. The blue, the red and the two green
ones. This is done using the TTRS jacks and cable. ones. This is done using the TRRS jacks and cable.
- Yes, the connection from B4 to VCC doesnt seem to make any sense, but the B4 port actually - Yes, the connection from B4 to VCC doesnt seem to make any sense, but the B4 port actually
gets used directly in the ergodox-firmware, so just connect those connections that make no gets used directly in the ergodox-firmware, so just connect those connections that make no
sense on first sight and either dont question it or find out why this is necessary by going sense on first sight and either dont question it or find out why this is necessary by going