Add a convenience function to return the board serial number

SignalK · Jun 3, 2024 · 62ee197 · 62ee197
1 parent 01d0db7
commit 62ee197
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/src/sensesp/system/serial_number.h b/src/sensesp/system/serial_number.h
@@ -0,0 +1,16 @@
+#ifndef SENSESP_SRC_SENSESP_SYSTEM_SERIAL_NUMBER_H_
+#define SENSESP_SRC_SENSESP_SYSTEM_SERIAL_NUMBER_H_
+
+#include <esp_mac.h>
+
+#include <cstdint>
+
+uint64_t GetBoardSerialNumber() {
+  uint8_t chipid[6];
+  esp_efuse_mac_get_default(chipid);
+  return ((uint64_t)chipid[0] << 0) + ((uint64_t)chipid[1] << 8) +
+         ((uint64_t)chipid[2] << 16) + ((uint64_t)chipid[3] << 24) +
+         ((uint64_t)chipid[4] << 32) + ((uint64_t)chipid[5] << 40);
+}
+
+#endif  // SENSESP_SRC_SENSESP_SYSTEM_SERIAL_NUMBER_H_