diff --git a/Firmware/Chameleon-Mini/Configuration.c b/Firmware/Chameleon-Mini/Configuration.c
index 7c30348..b0e855e 100644
--- a/Firmware/Chameleon-Mini/Configuration.c
+++ b/Firmware/Chameleon-Mini/Configuration.c
@@ -505,10 +505,14 @@ void ConfigurationSetById(ConfigurationEnum Configuration) {
              &ConfigurationTable[Configuration], sizeof(ConfigurationType));
 
     //    Configure antenna load as appropriate
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
     if (Configuration == CONFIG_ISO14443A_READER)
         PORTC.OUTCLR = PIN7_bm;
     else
         PORTC.OUTSET = PIN7_bm;
+#else
+    PORTC.OUTSET = PIN7_bm;
+#endif
 
     CodecInit();
     ApplicationInit();
@@ -523,7 +527,11 @@ bool ConfigurationSetByName(const char *Configuration) {
 
     if (MapTextToId(ConfigurationMap, ARRAY_COUNT(ConfigurationMap), Configuration, &Id)) {
         //    The last configuration can only be configured as a reader
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
         if (GlobalSettings.ActiveSettingIdx >= SETTINGS_COUNT && Id != CONFIG_ISO14443A_READER) {
+#else
+        if (GlobalSettings.ActiveSettingIdx >= SETTINGS_COUNT) {
+#endif
             return false;
         }
         ConfigurationSetById(Id);
diff --git a/Firmware/Chameleon-Mini/Makefile b/Firmware/Chameleon-Mini/Makefile
index f67fa3b..cc23ac0 100644
--- a/Firmware/Chameleon-Mini/Makefile
+++ b/Firmware/Chameleon-Mini/Makefile
@@ -15,13 +15,13 @@ SETTINGS    += -DCONFIG_MF_CLASSIC_1K_7B_SUPPORT
 SETTINGS    += -DCONFIG_MF_CLASSIC_4K_SUPPORT
 SETTINGS    += -DCONFIG_MF_CLASSIC_4K_7B_SUPPORT
 SETTINGS    += -DCONFIG_MF_ULTRALIGHT_SUPPORT
-SETTINGS    += -DCONFIG_ISO14443A_SNIFF_SUPPORT
-SETTINGS    += -DCONFIG_ISO14443A_READER_SUPPORT
-SETTINGS    += -DCONFIG_VICINITY_SUPPORT
-SETTINGS    += -DCONFIG_SL2S2002_SUPPORT
-SETTINGS    += -DCONFIG_TITAGITSTANDARD_SUPPORT
-SETTINGS    += -DCONFIG_ISO15693_SNIFF_SUPPORT
-SETTINGS    += -DCONFIG_EM4233_SUPPORT
+# SETTINGS	+= -DCONFIG_ISO14443A_SNIFF_SUPPORT
+# SETTINGS	+= -DCONFIG_ISO14443A_READER_SUPPORT
+SETTINGS	+= -DCONFIG_VICINITY_SUPPORT
+SETTINGS	+= -DCONFIG_SL2S2002_SUPPORT
+SETTINGS	+= -DCONFIG_TITAGITSTANDARD_SUPPORT
+# SETTINGS	+= -DCONFIG_ISO15693_SNIFF_SUPPORT
+SETTINGS	+= -DCONFIG_EM4233_SUPPORT
 
 #Support magic mode on mifare classic configuration
 SETTINGS    += -DSUPPORT_MF_CLASSIC_MAGIC_MODE
@@ -134,6 +134,7 @@ AVRDUDE_FLAGS = -p $(AVRDUDE_MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
 AVRDUDE_WRITE_APP_LATEST = -U application:w:Latest/Chameleon-RevG.hex
 AVRDUDE_WRITE_EEPROM_LATEST = -U eeprom:w:Latest/Chameleon-RevG.eep
 
+.PHONY: program program-latest dfu-flip dfu-prog check_size style
 
 # Default target
 all:
@@ -165,27 +166,41 @@ spmhelper: $(TARGET).elf
 	$(CROSS)-objcopy -O ihex -j .spmhelper $(SPM_HELPER_OBJCOPY) $(TARGET).elf $(TARGET).hex
 
 # Program the device using avrdude
-program: $(TARGET).hex $(TARGET).eep
+program: $(TARGET).hex $(TARGET).eep check_size
 	avrdude $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_APP) $(AVRDUDE_WRITE_EEPROM)
 
 # Program the device using avrdude with the latest official firmware
-program-latest:
+program-latest: check_size
 	avrdude $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_APP_LATEST) $(AVRDUDE_WRITE_EEPROM_LATEST)
 
 # Program the device using batchisp and the DFU bootloader
 # Note that the device has to be in bootloader mode already
-dfu-flip: $(TARGET).hex $(TARGET).eep
+dfu-flip: $(TARGET).hex $(TARGET).eep check_size
 	cp $(TARGET).eep EEPROM.hex
 	batchisp -hardware usb -device $(MCU) -operation erase f memory FLASH loadbuffer $(TARGET).hex program verify memory EEPROM loadbuffer EEPROM.hex program verify start reset 0
 	rm EEPROM.hex
 
 # Program the device using dfu-programmer
-dfu-prog: $(TARGET).hex $(TARGET).eep
+dfu-prog: $(TARGET).hex $(TARGET).eep check_size
 	dfu-programmer $(MCU) erase
 	dfu-programmer $(MCU) flash-eeprom $(TARGET).eep
 	dfu-programmer $(MCU) flash $(TARGET).hex
 	dfu-programmer $(MCU) reset
 
+check_size:
+	@{ \
+	set -e; \
+	if [ ! -f $(TARGET).elf ]; then \
+		exit 0; \
+	fi; \
+	PROGMEM_SIZE=$$(avr-size $(TARGET).elf | grep -oP "\d+" | sed -n 4p); \
+	MAX_PRGMEM_SIZE=$$(printf "%d\n" $(FLASH_DATA_ADDR)); \
+	if [ $$PROGMEM_SIZE -gt $$MAX_PRGMEM_SIZE ]; then \
+		echo "make: *** $(TARGET).elf Application Section size $$PROGMEM_SIZE excedes maximum allowed $$MAX_PRGMEM_SIZE. Please disable some features in Makefile"; \
+		exit 1; \
+	fi; \
+	}
+
 style:
 	# Make sure astyle is installed
 	@which astyle >/dev/null || ( echo "Please install 'astyle' package first" ; exit 1 )
diff --git a/Firmware/Chameleon-Mini/Memory.c b/Firmware/Chameleon-Mini/Memory.c
index 3ea60ab..c950e83 100644
--- a/Firmware/Chameleon-Mini/Memory.c
+++ b/Firmware/Chameleon-Mini/Memory.c
@@ -172,10 +172,15 @@ INLINE void FRAMWrite(const void *Buffer, uint16_t Address, uint16_t ByteCount)
     SPIWriteBlock(Buffer, ByteCount);
 
     FRAM_PORT.OUTSET = FRAM_CS;
-
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
     if (0 == Address && GlobalSettings.ActiveSettingPtr->Configuration != CONFIG_ISO14443A_READER) {
         ConfigurationSetById(GlobalSettings.ActiveSettingPtr->Configuration);
     }
+#else
+    if (0 == Address) {
+        ConfigurationSetById(GlobalSettings.ActiveSettingPtr->Configuration);
+    }
+#endif
 }
 
 INLINE void FlashRead(void *Buffer, uint32_t Address, uint16_t ByteCount) {
@@ -421,8 +426,10 @@ void MemoryRecall(void) {
     if (GlobalSettings.ActiveSettingIdx < SETTINGS_COUNT)
         FlashToFRAM((uint32_t) GlobalSettings.ActiveSettingIdx * MEMORY_SIZE_PER_SETTING, ActiveConfiguration.MemorySize);
 
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
     if (GlobalSettings.ActiveSettingPtr->Configuration != CONFIG_ISO14443A_READER)
         ActiveConfiguration.ApplicationInitFunc();
+#endif
 
     SystemTickClearFlag();
 }
diff --git a/Firmware/Chameleon-Mini/Settings.c b/Firmware/Chameleon-Mini/Settings.c
index 290806c..dc557bc 100644
--- a/Firmware/Chameleon-Mini/Settings.c
+++ b/Firmware/Chameleon-Mini/Settings.c
@@ -39,7 +39,9 @@ SettingsType EEMEM StoredSettings = {
             .PendingTaskTimeout = DEFAULT_PENDING_TASK_TIMEOUT,
             .ReaderThreshold = DEFAULT_READER_THRESHOLD,
             .bSakMode = 0,
-        },
+        }
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
+        ,
         //    In the last configuration, there is no storage space. This is used as the card reader mode only
         [SETTINGS_COUNT] =
         {
@@ -55,6 +57,7 @@ SettingsType EEMEM StoredSettings = {
             .ReaderThreshold = DEFAULT_READER_THRESHOLD,
             .bSakMode = 0,
         }
+#endif
     }
 };
 
@@ -77,7 +80,9 @@ void SettingsLoad(void) {
             GlobalSettings.Settings[i].PendingTaskTimeout = DEFAULT_PENDING_TASK_TIMEOUT;
             GlobalSettings.Settings[i].ReaderThreshold = DEFAULT_READER_THRESHOLD;
         }
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
         GlobalSettings.Settings[SETTINGS_COUNT].Configuration = CONFIG_ISO14443A_READER;
+#endif
 
         SettingsSave();
     }
diff --git a/Firmware/Chameleon-Mini/Terminal/CommandLine.c b/Firmware/Chameleon-Mini/Terminal/CommandLine.c
index c6f7026..0e6e101 100644
--- a/Firmware/Chameleon-Mini/Terminal/CommandLine.c
+++ b/Firmware/Chameleon-Mini/Terminal/CommandLine.c
@@ -260,6 +260,7 @@ const PROGMEM CommandEntryType CommandTable[] = {
         .SetFunc 	= NO_FUNCTION,
         .GetFunc 	= CommandGetSysTick
     },
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
     {
         .Command	= COMMAND_SEND_RAW,
         .ExecFunc 	= NO_FUNCTION,
@@ -302,6 +303,7 @@ const PROGMEM CommandEntryType CommandTable[] = {
         .SetFunc 	= NO_FUNCTION,
         .GetFunc 	= NO_FUNCTION
     },
+#endif
     {
         .Command	= COMMAND_TIMEOUT,
         .ExecFunc 	= NO_FUNCTION,
@@ -330,6 +332,7 @@ const PROGMEM CommandEntryType CommandTable[] = {
         .SetFunc    = CommandSetField,
         .GetFunc    = CommandGetField
     },
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
     {
         .Command        = COMMAND_CLONE,
         .ExecFunc       = CommandExecClone,
@@ -337,6 +340,7 @@ const PROGMEM CommandEntryType CommandTable[] = {
         .SetFunc        = NO_FUNCTION,
         .GetFunc        = NO_FUNCTION
     },
+#endif
     {
         .Command    = COMMAND_SETUIDMODE,
         .ExecFunc   = NO_FUNCTION,
diff --git a/Firmware/Chameleon-Mini/Terminal/Commands.c b/Firmware/Chameleon-Mini/Terminal/Commands.c
index b9dd458..3ace97b 100644
--- a/Firmware/Chameleon-Mini/Terminal/Commands.c
+++ b/Firmware/Chameleon-Mini/Terminal/Commands.c
@@ -458,6 +458,7 @@ CommandStatusIdType CommandGetSysTick(char *OutParam) {
     return COMMAND_INFO_OK_WITH_TEXT_ID;
 }
 
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
 CommandStatusIdType CommandExecParamSend(char *OutMessage, const char *InParams) {
     if (GlobalSettings.ActiveSettingPtr->Configuration != CONFIG_ISO14443A_READER)
         return COMMAND_ERR_INVALID_USAGE_ID;
@@ -583,6 +584,7 @@ CommandStatusIdType CommandExecIdentifyCard(char *OutMessage) {
     CommandLinePendingTaskTimeout = &Reader14443AAppTimeout;
     return TIMEOUT_COMMAND;
 }
+#endif
 
 CommandStatusIdType CommandGetTimeout(char *OutParam) {
     snprintf_P(OutParam, TERMINAL_BUFFER_SIZE, PSTR("%u ms"), GlobalSettings.ActiveSettingPtr->PendingTaskTimeout * 100);
@@ -647,6 +649,7 @@ CommandStatusIdType CommandGetField(char *OutMessage) {
 
 
 CommandStatusIdType CommandExecAutocalibrate(char *OutMessage) {
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
     if (GlobalSettings.ActiveSettingPtr->Configuration == CONFIG_ISO14443A_READER) {
         ApplicationReset();
 
@@ -655,19 +658,22 @@ CommandStatusIdType CommandExecAutocalibrate(char *OutMessage) {
         Reader14443ACodecStart();
         CommandLinePendingTaskTimeout = &Reader14443AAppTimeout;
         return TIMEOUT_COMMAND;
-    } else if (GlobalSettings.ActiveSettingPtr->Configuration == CONFIG_ISO14443A_SNIFF) {
+    }
+#endif
+#ifdef CONFIG_ISO14443A_SNIFF_SUPPORT
+    if (GlobalSettings.ActiveSettingPtr->Configuration == CONFIG_ISO14443A_SNIFF) {
         ApplicationReset();
 
         Sniff14443CurrentCommand = Sniff14443_Autocalibrate;
         Sniff14443AAppInit();
         CommandLinePendingTaskTimeout = &Sniff14443AAppTimeout;
         return TIMEOUT_COMMAND;
-    } else {
-        return COMMAND_ERR_INVALID_USAGE_ID;
     }
-
+#endif
+    return COMMAND_ERR_INVALID_USAGE_ID;
 }
 
+#ifdef CONFIG_ISO14443A_READER_SUPPORT
 CommandStatusIdType CommandExecClone(char *OutMessage) {
     ConfigurationSetById(CONFIG_ISO14443A_READER);
 
@@ -680,6 +686,7 @@ CommandStatusIdType CommandExecClone(char *OutMessage) {
 
     return TIMEOUT_COMMAND;
 }
+#endif
 
 extern uint32_t dwBaudRate;
 CommandStatusIdType CommandGetBaudrate(char *OutParam) {