diff --git a/firmware/esp32/main/i2c.cpp b/firmware/esp32/main/i2c.cpp
index 9573042..53d5b6d 100644
--- a/firmware/esp32/main/i2c.cpp
+++ b/firmware/esp32/main/i2c.cpp
@@ -42,6 +42,7 @@ static void i2c_init(void) {
     ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &bus_handle));
 
     // Add all vases adresses here:
+    // TODO: move this to a config.cpp
     register_slave(0x30);
 }