OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-# Boot Section Size in *bytes*
-# Teensy halfKay 512
-# Teensy++ halfKay 1024
-# Atmel DFU loader 4096
-# LUFA bootloader 4096
-# USBaspLoader 2048
-OPT_DEFS += -DBOOTLOADER_SIZE=4096
+# Bootloader selection
+# Teensy halfkay
+# Pro Micro caterina
+# Atmel DFU atmel-dfu
+# LUFA DFU lufa-dfu
+# QMK DFU qmk-dfu
+# atmega32a bootloadHID
+BOOTLOADER = atmel-dfu
+
+
+# If you don't know the bootloader type, then you can specify the
+# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
+# Teensy halfKay 512
+# Teensy++ halfKay 1024
+# Atmel DFU loader 4096
+# LUFA bootloader 4096
+# USBaspLoader 2048
+# OPT_DEFS += -DBOOTLOADER_SIZE=4096
# Build Options