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Fix undefined probe reporting if inverted.

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bdring
2020-12-21 16:55:01 -06:00
parent 83cced5e4c
commit 25dc57c7a2
1 changed files with 1 additions and 1 deletions
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Grbl_Esp32/src/Probe.cpp
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@@ -50,7 +50,7 @@ void set_probe_direction(bool is_away) {
// Returns the probe pin state. Triggered = true. Called by gcode parser and probe state monitor.
bool probe_get_state() {
return digitalRead(PROBE_PIN) ^ probe_invert->get();
return (PROBE_PIN == UNDEFINED_PIN) ? false : digitalRead(PROBE_PIN) ^ probe_invert->get();
}
// Monitors probe pin state and records the system position when detected. Called by the