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-rw-r--r--puzzle/smoketest/main.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/puzzle/smoketest/main.cpp b/puzzle/smoketest/main.cpp
index 6b4d7d0..3169ed5 100644
--- a/puzzle/smoketest/main.cpp
+++ b/puzzle/smoketest/main.cpp
@@ -2,7 +2,9 @@
#include "lib/pbdrv/pb-types.h"
#include "lib/pbdrv/pb-mod.h"
+//! LED pin (on-board LED on Arduino Uno board) \ingroup puz_smoketest
#define EXTERNAL_LED_PIN 13
+//! External button pin (button shorts this pin to ground) \ingroup puz_smoketest
#define BUTTON_PIN 10
pb_global_state_t state = PB_GS_NOINIT;