The pullups go to the I/O expander, not switches!

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Erin Call 2017-06-25 10:38:55 -07:00
parent 05a90f3fee
commit 73ac960e79
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@ -142,7 +142,7 @@
[[teensy-1.jpg]]
The two 2.2kΩ (Red Red Red Gold) pull-up resistors ensure the switches give a clear reading when open.
The two 2.2kΩ (Red Red Red Gold) pull-up resistors ensure a clear signal between the USB controller and the I/O expander.
[[https://learn.sparkfun.com/tutorials/pull-up-resistors][Read more about pull-up resistors here]].
[[teensy-2-fuxor-reziztorrs.jpg]]