diff --git a/fdrs_types.h b/fdrs_types.h
new file mode 100644
index 0000000..9687d01
--- /dev/null
+++ b/fdrs_types.h
@@ -0,0 +1,9 @@
+#ifndef __FDRS_TYPES_H__
+
+typedef struct __attribute__((packed)) DataReading {
+    float data;
+    uint16_t id;
+    uint8_t type;
+} DataReading;
+
+#endif
\ No newline at end of file