diff --git a/src/settings.h b/src/settings.h
index 39d03aa..1f9b18d 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -51,14 +51,14 @@
 
 
     //################## select SD card mode #############################
-    #define SD_MMC_1BIT_MODE              // run SD card in SD-MMC 1Bit mode (using GPIOs 15 + 14 + 2 is mandatory!)
+    //#define SD_MMC_1BIT_MODE              // run SD card in SD-MMC 1Bit mode (using GPIOs 15 + 14 + 2 is mandatory!)
     //#define SINGLE_SPI_ENABLE             // If only one SPI-instance should be used instead of two (not yet working!)
 
 
     //################## select RFID reader ##############################
-    //#define RFID_READER_TYPE_MFRC522_SPI    // use MFRC522 via SPI
+    #define RFID_READER_TYPE_MFRC522_SPI    // use MFRC522 via SPI
     //#define RFID_READER_TYPE_MFRC522_I2C  // use MFRC522 via I2C
-    #define RFID_READER_TYPE_PN5180       // use PN5180 via SPI
+    //#define RFID_READER_TYPE_PN5180       // use PN5180 via SPI
 
     #ifdef RFID_READER_TYPE_MFRC522_I2C
         #define MFRC522_ADDR 0x28           // default I2C-address of MFRC522