diff --git a/platformio.ini b/platformio.ini
index b1a0652..68d6a0c 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -78,5 +78,23 @@ extends = env:promicro16, debug
 [env:uno_cnc_shield]
 board = uno
 extends = env:A4988driver
-build_flags = -DPIN_DRIVER_SLEEP=8 -DPIN_DRIVER_DIR=5 -DPIN_DRIVER_STEP=2 -DONE_WIRE_BUS=3 -DBTN_OUT=4
-upload_port = /dev/ttyACM0
\ No newline at end of file
+build_flags = 
+	-DUSE_DRIVER 
+	# using x-header
+	-DPIN_DRIVER_SLEEP=8
+	-DPIN_DRIVER_DIR=5 
+	-DPIN_DRIVER_STEP=2
+	-DPIN_DRIVER_SLEEP_INVERTED=true
+	# Connect temp sensor to CodeEn
+	-DONE_WIRE_BUS=A3
+	# Connect buttons to Z/Y limit switch
+	-DBTN_IN=10
+	-DBTN_OUT=11
+	# Connect speed poti to Abort
+	-D BTN_POTI_SPEED=A0
+	# enable debug, RX/TX on Hold/Resume
+	-DDEBUG
+	-DDEBUG_RX=A1
+	-DDEBUG_TX=A2
+upload_port = /dev/ttyACM0
+monitor_port = /dev/ttyUSB0
\ No newline at end of file
diff --git a/src/arduino-motorfocus.cpp b/src/arduino-motorfocus.cpp
index 319e650..1d185c4 100644
--- a/src/arduino-motorfocus.cpp
+++ b/src/arduino-motorfocus.cpp
@@ -7,31 +7,66 @@
 #include <TimerOne.h>
 #include "DummySerial.h"
 
+// button and button speed config
+#ifndef BTN_IN
 #define BTN_IN 7
+#endif
+#ifndef BTN_OUT
 #define BTN_OUT 8
+#endif
+#ifndef BTN_POTI_SPEED
 #define BTN_POTI_SPEED A0
+#endif
+
 #define BTN_MIN_SPEED 8
 #define BTN_MAX_SPEED 512
 #define BTN_ACCEL_FACTOR 1.05f
 
+// driver config
+#ifndef PIN_DRIVER_SLEEP
 #define PIN_DRIVER_SLEEP 4
+#endif
+
+#ifndef PIN_DRIVER_DIR
 #define PIN_DRIVER_DIR 3
+#endif
+#ifndef PIN_DRIVER_STEP
 #define PIN_DRIVER_STEP 5
+#endif
+
+#ifndef PIN_DRIVER_SLEEP_INVERTED
+#define PIN_DRIVER_SLEEP_INVERTED false
+#endif
 
+#ifndef PIN_DRIVER_DIR_INVERTED
+#define PIN_DRIVER_DIR_INVERTED false
+#endif
+
+#ifndef PIN_DRIVER_STEP_INVERTED
+#define PIN_DRIVER_STEP_INVERTED false
+#endif
+
+// one wire bus / temperature sensor config
+#ifndef ONE_WIRE_BUS
 #define ONE_WIRE_BUS 2
+#endif
 
 #define PERIOD_US 2000
 
+
 // Maximum motor speed multiplicator in steps per second
 #define SPEED_MULTIPLICATOR 30
 // Motor acceleration in steps per second per second
 #define ACCELERATION 100
 
-// #define USE_DRIVER
-
-// #define DEBUG
+#ifndef DEBUG_RX
+#define DEBUG_RX A1
+#endif
+#ifndef DEBUG_TX
+#define DEBUG_TX A2
+#endif
 #ifdef DEBUG
-SoftwareSerial debugSerial(9, 10);
+SoftwareSerial debugSerial(DEBUG_RX, DEBUG_TX);
 #else
 DummySerial debugSerial;
 #endif
@@ -90,6 +125,7 @@ void setup()
 #ifdef USE_DRIVER
   debugSerial.println("Using A4988 driver");
   stepper.setEnablePin(PIN_DRIVER_SLEEP);
+  stepper.setPinsInverted(PIN_DRIVER_DIR_INVERTED, PIN_DRIVER_STEP_INVERTED, PIN_DRIVER_SLEEP_INVERTED);
   stepper.disableOutputs();
   isEnabled = false;
 #endif