diff --git a/include/sta/bus/i2c/i2c.hpp b/include/sta/bus/i2c/i2c.hpp
index e9896fc..63d1442 100644
--- a/include/sta/bus/i2c/i2c.hpp
+++ b/include/sta/bus/i2c/i2c.hpp
@@ -9,6 +9,21 @@
 
 namespace sta
 {
+    /**
+     * @brief Possible errors that can occur during transmission-
+     * 
+     */
+    enum I2CError
+    {
+        SUCCESS,
+        ACK_FAILURE,
+        NACK, 
+        DATA_TOO_LONG,
+        TIMEOUT,
+        BUS_ERROR,
+        ARBITRATION_LOSS,
+    };
+
     /**
      * @brief Interface class for %I2C hardware.
      *