diff --git a/src/tinylor.h b/src/tinylor.h
index 92b6dae..2f04548 100644
--- a/src/tinylor.h
+++ b/src/tinylor.h
@@ -115,6 +115,14 @@ typedef union lor_effect_data {
 /// @brief The length of the LOR heartbeat message \p LOR_HEARTBEAT_BYTES.
 #define LOR_HEARTBEAT_SIZE 5
 
+/// @def LOR_HEARTBEAT_DELAY_MS
+/// @brief The intended delay in milliseconds between sending LOR heartbeats.
+#define LOR_HEARTBEAT_DELAY_MS 500
+
+/// @def LOR_HEARTBEAT_DELAY_NS
+/// @brief The intended delay in nanoseconds between sending LOR heartbeats.
+#define LOR_HEARTBEAT_DELAY_NS 500000000
+
 /// @struct lor_req
 /// @brief Represents a request to apply an effect to a set of channels on a
 ///        specific unit. The effect may require additional arguments, which are
diff --git a/tinylor.h b/tinylor.h
index 35282ba..1259f5a 100644
--- a/tinylor.h
+++ b/tinylor.h
@@ -123,6 +123,14 @@ typedef union lor_effect_data {
 /// @brief The length of the LOR heartbeat message \p LOR_HEARTBEAT_BYTES.
 #define LOR_HEARTBEAT_SIZE 5
 
+/// @def LOR_HEARTBEAT_DELAY_MS
+/// @brief The intended delay in milliseconds between sending LOR heartbeats.
+#define LOR_HEARTBEAT_DELAY_MS 500
+
+/// @def LOR_HEARTBEAT_DELAY_NS
+/// @brief The intended delay in nanoseconds between sending LOR heartbeats.
+#define LOR_HEARTBEAT_DELAY_NS 500000000
+
 /// @struct lor_req
 /// @brief Represents a request to apply an effect to a set of channels on a
 ///        specific unit. The effect may require additional arguments, which are