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-rw-r--r--lock/util.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lock/util.h b/lock/util.h
index 51a990c..730beae 100644
--- a/lock/util.h
+++ b/lock/util.h
@@ -14,4 +14,6 @@ int is_btn_pressed(uint8_t pin, uint8_t btn);
void xor(const char *k, const char *s, char *d, uint8_t n);
+uint16_t getvcc(void);
+
#endif /* MY_UTIL_H */