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Add support for active-high limit switches

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Travis Snoozy 2013-11-22 18:12:29 -08:00
parent fe03216952
commit e8345fdb88
2 changed files with 16 additions and 1 deletions
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6
config.h
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@ -171,6 +171,12 @@
// successful values for certain setups have ranged from 10 to 20us.
// #define STEP_PULSE_DELAY 10 // Step pulse delay in microseconds. Default disabled.
// Uncomment the following define if you are using hardware that drives high when your limits
// are reached. You will need to ensure that you have appropriate pull-down resistors on the
// limit switch input pins, or that your hardware drives the pins low when they are open (non-
// triggered).
// #define LIMIT_SWITCHES_ACTIVE_HIGH
// ---------------------------------------------------------------------------------------
// TODO: Install compile-time option to send numeric status codes rather than strings.