diff --git a/bin/kaleidoscope-builder b/bin/kaleidoscope-builder
index b1b3ce5d..8742be93 100755
--- a/bin/kaleidoscope-builder
+++ b/bin/kaleidoscope-builder
@@ -237,7 +237,13 @@ clean () {
     rm -rf "${OUTPUT_PATH}"
 }
 
-reset_device () {
+reset_device() {
+	find_device_port
+    	check_device_port
+	reset_device_cmd
+}
+
+check_device_port () {
     if [ -z $DEVICE_PORT ]; then
         echo "Couldn't autodetect the keyboard's serial port."
         echo "If you see this message and your keyboard is connected to your computer,"
@@ -246,10 +252,9 @@ reset_device () {
         echo "Please report this issue at https://github.com/keyboardio/Kaleidoscope";
         exit 0;
     fi
-
-    ${RESET_DEVICE}
 }
 
+
 usage () {
     cat <<EOF
 Usage: $0 SKETCH commands...
diff --git a/etc/kaleidoscope-builder.conf b/etc/kaleidoscope-builder.conf
index 6cc54dbc..015c187a 100644
--- a/etc/kaleidoscope-builder.conf
+++ b/etc/kaleidoscope-builder.conf
@@ -10,8 +10,10 @@ LIBRARY="${LIBRARY:-${SKETCH}}"
 ######## Keyboard hardware definitions
 ########
 
-
-
+# These should be pulled from Arduino boards.txt
+VID="${VID:-1209}"
+BOOTLOADER_PID="${BOOTLOADER_PID:-2300}"
+SKETCH_PID="${SKEYCH_PID:-2301}"
 BOARD="${BOARD:-model01}"
 MCU="${MCU:-atmega32u4}"
 if [ "${BOARD}" = "virtual" ]; then
@@ -31,24 +33,43 @@ fi
 uname_S=$(uname -s 2>/dev/null || echo not)
 
 
-  
-DEVICE_PORT="$(ls /dev/ttyACM* 2>/dev/null || echo '')"
-RESET_DEVICE="stty -F ${DEVICE_PORT} 1200 hupcl"
+find_device_port() {
+	DIR=$(dirname "$(readlink -f "$0")")
+	DEVICE_PORT_PROBER="${DIR}/find-device-port-linux-udev"
+	DEVICE_PORT="$(perl ${DEVICE_PORT_PROBER} ${VID} ${SKETCH_PID})"
+}
+
+
+reset_device_cmd() {
+	stty -F ${DEVICE_PORT} 1200 hupcl
+
+}
+
+
 MD5="md5sum"
 
 find_bootloader_ports() {
-	DEVICE_PORT_BOOTLOADER="$(ls /dev/ttyACM* 2>/dev/null || echo '')"
+	DIR=$(dirname "$(readlink -f "$0")")
+	DEVICE_PORT_PROBER="${DIR}/find-device-port-linux-udev"
+	DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER} ${VID} ${BOOTLOADER_PID})"
+
 }
 
 
 
 if [ "${uname_S}" = "Darwin" ]; then
+
+find_device_port() {
     DEVICE_PORT="$(ls /dev/cu.usbmodemkbio* 2> /dev/null || echo '')"
     DEVICE_PORT="${DEVICE_PORT:-$(ls /dev/cu.usbmodemCkbio* 2> /dev/null || echo '')}"
     DEVICE_PORT="${DEVICE_PORT:-$(ls /dev/cu.usbmodemHID* 2> /dev/null || echo '')}"
     DEVICE_PORT="${DEVICE_PORT:-$(ls /dev/cu.usbmodemCHID* 2> /dev/null || echo '')}"
     DEVICE_PORT="${DEVICE_PORT:-$(ls /dev/cu.usbmodem14* 2> /dev/null || echo '')}"
-    RESET_DEVICE="/bin/stty -f ${DEVICE_PORT} 1200"
+}
+
+reset_device_cmd() {
+    /bin/stty -f ${DEVICE_PORT} 1200
+}
 
 
     ARDUINO_PATH="${ARDUINO_PATH:-/Applications/Arduino.app/Contents/Java/}"