diff --git a/platformio.ini b/platformio.ini
index 8656613..d468130 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -20,6 +20,12 @@ lib_deps =
 	waspinator/AccelStepper@^1.61
 lib_ldf_mode = chain
 
+[env:uno]
+platform = atmelavr
+board = uno
+build_flags = -D MCU_UNO
+
+
 [env:nano]
 platform = atmelavr
 board = nanoatmega328new
@@ -42,14 +48,14 @@ platform = ststm32
 board = bluepill_f103c8
 upload_protocol = stlink
 build_flags =
-  -D MCU_BLUEPILL
-  -D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC
-  -D USBCON
-  -D USBD_VID=0x0483
-  -D USBD_PID=0x5740
-  -D USB_MANUFACTURER="Unknown"
-  -D USB_PRODUCT="\"BLUEPILL_F103C8\""
-  -D HAL_PCD_MODULE_ENABLED
+	-D MCU_BLUEPILL
+	-D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC
+	-D USBCON
+	-D USBD_VID=0x0483
+	-D USBD_PID=0x5740
+	-D USB_MANUFACTURER="Unknown"
+	-D USB_PRODUCT="\"BLUEPILL_F103C8\""
+	-D HAL_PCD_MODULE_ENABLED
 
 [env:esp32]
 platform = espressif32
diff --git a/src/boards.h b/src/boards.h
index 0ade14f..4482bd0 100644
--- a/src/boards.h
+++ b/src/boards.h
@@ -9,6 +9,8 @@
         #define BOARD_SANGABOARDv5
     #elif defined(MCU_ESP32)
         #define BOARD_CUSTOM_ESP32
+    #elif defined(MCU_UNO)
+        #define BOARD_CUSTOM
     #else
         #error "Invalid build config - must specify MCU type"
     #endif
@@ -23,6 +25,7 @@
     #define ENDSTOPS_PULLUPS true
     #define WIRING_ENDSTOPS_MIN {A0,A1,A2}
     #define WIRING_ENDSTOPS_MAX {A3,A4,A5}
+    #define SERIAL_PORT Serial
 #elif defined(BOARD_SANGABOARDv2)
     #define BOARD_STRING "Sangaboard v0.2"
     #define WIRING_MOTOR_X 13, 12, 11, 10
@@ -32,6 +35,7 @@
     #define ENDSTOPS_PULLUPS true
     #define WIRING_ENDSTOPS_MIN {A0,A1,A2}
     #define WIRING_ENDSTOPS_MAX {A3,A4,A5}
+    #define SERIAL_PORT Serial
 #elif defined(BOARD_CUSTOM_BLUEPILL)
     #define BOARD_STRING "Custom Bluepill board"
     #define WIRING_MOTOR_X PB11, PB10, PB1, PB0
@@ -41,6 +45,7 @@
     #define ENDSTOPS_PULLUPS true
     #define WIRING_ENDSTOPS_MIN {A0,A1,A2}
     #define WIRING_ENDSTOPS_MAX {A3,A4,A5}
+    #define SERIAL_PORT Serial
 #elif defined(BOARD_CUSTOM_PICO)
     #define BOARD_STRING "Custom Pico board"
     #define WIRING_MOTOR_X 2, 3, 4, 5
@@ -54,6 +59,7 @@
     #define WIRING_ADDITIONAL_STEPPERS = {{0, 1, 22, 23}}
     #define WIRING_STEPSTICK {13,14,15} //enable, step, dir todo: move to boards.h
     //TODO: illumination, 4th motor wiring
+    #define SERIAL_PORT Serial
 #elif defined(BOARD_SANGABOARDv5)
     #define BOARD_STRING "Sangaboard v0.5"
     #define WIRING_MOTOR_X 2, 3, 4, 5
@@ -66,7 +72,14 @@
     #define ADDITIONAL_STEPPERS 1
     #define WIRING_ADDITIONAL_STEPPERS = {{0, 1, 22, 23}}
     #define WIRING_STEPSTICK {23,22,1} //enable, step, dir todo: move to boards.h
-    //TODO: illumination, 4th motor wiring
+    #define WIRING_SERIAL_TX 8
+    #define WIRING_SERIAL_RX 9
+    #ifdef USB_SERIAL
+        #define SERIAL_PORT Serial
+    #else
+        #define SERIAL_PORT Serial2
+    #endif
+    //TODO: move illumination wiring here, 4th motor support
 #elif defined(BOARD_CUSTOM_ESP32)
     #define BOARD_STRING "Custom ESP32 board"
     #define WIRING_MOTOR_X 34, 32, 25, 27
@@ -76,9 +89,10 @@
     #define ENDSTOPS_PULLUPS true
     #define WIRING_ENDSTOPS_MIN {A0,A1,A2}
     #define WIRING_ENDSTOPS_MAX {A3,A4,A5}
-    #define WIRING_STEPSTICK {13,12,27} 
+    #define WIRING_STEPSTICK {13,12,27}
+    #define SERIAL_PORT Serial
 #elif defined(BOARD_CUSTOM)
-    #define BOARD_STRING "Sangaboard v0.5"
+    #define BOARD_STRING "Custom board"
     #define WIRING_MOTOR_X 2, 3, 4, 5
     #define WIRING_MOTOR_Y 2, 3, 4, 5
     #define WIRING_MOTOR_Z 2, 3, 4, 5
@@ -89,4 +103,5 @@
     #define ADDITIONAL_STEPPERS 1
     #define WIRING_ADDITIONAL_STEPPERS = {{0, 1, 22, 23}}
     #define WIRING_STEPSTICK {8,9,10} //enable, step, dir todo: move to boards.h
+    #define SERIAL_PORT Serial
 #endif
\ No newline at end of file
diff --git a/src/config.h b/src/config.h
index 5fb4fed..c43e0db 100644
--- a/src/config.h
+++ b/src/config.h
@@ -1,24 +1,19 @@
 #ifndef CONFIGURED
     //board choice
-    //#define BOARD_AUTO
-    //#define BOARD_SANGABOARDv3
-    //#define BOARD_SANGABOARDv2
-    #define BOARD_SANGABOARDv5
-    //#define BOARD_CUSTOM_ESP32
-    //#define BOARD_CUSTOM_PICO
+    #define BOARD_AUTO
+    //#define BOARD_SANGABOARDv5
 
-    //default to USB serial for now
-    //#define SERIAL_PORT PiSerial
-    #define SERIAL_PORT Serial
+    //without this, default to HW serial where available
+    //the details are board specific and configured in boards.h
+    //#define USB_SERIAL
 
-    //#define BOARD_CUSTOM
     #include <boards.h> //defines wiring
 
     //general settings
     #define MAX_COMMANDS 50
     #define MAX_MODULES 10
     #define MAX_ARGUMENT_LENGTH 20 //used in argument parsing, takes up ram
-    #define VERSION_STRING "Sangaboard Firmware v0.4" //temporary hack
+    #define VERSION_STRING "Sangaboard Firmware v1.0-beta"
     #define DEBUG_ON
 
     //module choice
diff --git a/src/main.cpp b/src/main.cpp
index 71753b9..c8a19ab 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -44,10 +44,6 @@
     #include "modules/light_sensor/light_sensor.h"
 #endif
 
-#ifdef BOARD_SANGABOARDv5
-    //arduino::UART PiSerial(8, 9, NC, NC); //TODO this shouldn't be here
-#endif
-
 const Command *registered_commands[MAX_COMMANDS];
 void (*registered_loop_functions[MAX_MODULES])(void);
 
@@ -140,7 +136,11 @@ void get_modules(String)
 void setup()
 {
     // initialise serial port
-    //SERIAL_PORT.begin(115200);
+    #ifdef WIRING_SERIAL_TX
+        Serial2.setTX(WIRING_SERIAL_TX);
+        Serial2.setRX(WIRING_SERIAL_RX);
+    #endif
+
     SERIAL_PORT.begin(115200);
     while (!SERIAL_PORT)
         delay(1);
diff --git a/src/main.h b/src/main.h
index e09d56f..e69ec23 100644
--- a/src/main.h
+++ b/src/main.h
@@ -13,12 +13,6 @@
     }
 #define CHECK_END_COMMAND(C) check_end_command(C)
 
-//TODO: temporarily disabled for philhower compatibilty
-//extern arduino::UART PiSerial;
-
-#ifdef BOARD_SANGABOARDv5
-#endif
-
 struct Command
 {
     const char * command;
diff --git a/src/modules/illumination/illumination.cpp b/src/modules/illumination/illumination.cpp
index c9ab59a..259616c 100644
--- a/src/modules/illumination/illumination.cpp
+++ b/src/modules/illumination/illumination.cpp
@@ -9,11 +9,10 @@
 
 #define PWM_NUM 1
 #define WIRING_PWM_LEDS {25}
-//TODO: implement some fancier features of TMC controllers
+
 const uint8_t pwm_led_pins[] = WIRING_PWM_LEDS;
 void illumination_pwm_freq(String command)
 {
-    //TODO: make this properly, this is just a test for hacked on/off
     char * args[1];
     parse_arguments(args, command, 2);
     #ifdef MCU_PICO
diff --git a/src/modules/stepstick/stepstick.cpp b/src/modules/stepstick/stepstick.cpp
index 606bb3f..6a26c8a 100644
--- a/src/modules/stepstick/stepstick.cpp
+++ b/src/modules/stepstick/stepstick.cpp
@@ -1,5 +1,4 @@
 #include "config.h"
-#define STEPSTICK //TODO: remove
 #ifdef STEPSTICK
 #include "stepstick.h"
 #ifdef SUPPORT_EEPROM