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-rw-r--r--docs/Config_Reference.md16
1 files changed, 16 insertions, 0 deletions
diff --git a/docs/Config_Reference.md b/docs/Config_Reference.md
index 7b9a9768..94b8d88f 100644
--- a/docs/Config_Reference.md
+++ b/docs/Config_Reference.md
@@ -1574,6 +1574,22 @@ main printer config file. Wildcards may also be used (eg,
[include my_other_config.cfg]
```
+## [duplicate_pin_override]
+
+This tool allows a single micro-controller pin to be defined multiple
+times in a config file without normal error checking. This is intended
+for diagnostic and debugging purposes. This section is not needed
+where Klipper supports using the same pin multiple times, and using
+this override may cause confusing and unexpected results.
+
+```
+[duplicate_pin_override]
+pins:
+# A comma separated list of pins that may be used multiple times in
+# a config file without normal error checks. This parameter must be
+# provided.
+```
+
# Bed probing hardware
## [probe]