1 files changed, 14 insertions, 0 deletions
diff --git a/SignalLevel.h b/SignalLevel.h
new file mode 100644
index 0000000..81c7ff8
--- /dev/null
+++ b/SignalLevel.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include <string>
+
+enum SignalLevel {
+	LOW,
+	HIGH,
+	UNDEFINED
+};
+
+namespace std {
+	std::string to_string(SignalLevel level);
+}
+