feat: add sht v3 toolhead board

config/hardware/accelerometers/generics/lis2dw_software_spi.cfg

@@ -0,0 +1,23 @@
+# This LIS2DW file is dedicated to be used with LIS2DW boards
+# connected over the software SPI bus of the MCU boards
+
+# This include toolhead boards such as Mellow SHTv3 boards
+# If using a toolhead board, be sure to have the pin override in your mcu.cfg (toolhead:LIS2DW_CS)
+
+[lis2dw]
+cs_pin: LIS2DW_CS
+spi_software_sclk_pin: LIS2DW_SCLK
+spi_software_mosi_pin: LIS2DW_MOSI
+spi_software_miso_pin: LIS2DW_MISO
+axes_map: x,y,z
+
+[resonance_tester]
+accel_chip: lis2dw
+probe_points:
+    -1,-1,-1
+
+
+# Include the IS calibration macros to unlock them when
+# an accelerometer is installed on the machine
+[include ../../../../macros/helpers/resonance_override.cfg]
+[include ../../../../scripts/K-ShakeTune/K-SnT_*.cfg]

config/hardware/accelerometers/lis2dw_sht_v3.x.cfg

@@ -0,0 +1,7 @@
+[include generics/lis2dw_software_spi.cfg]
+
+[lis2dw]
+cs_pin: toolhead:LIS2DW
+spi_software_sclk_pin: toolhead:SCK
+spi_software_mosi_pin: toolhead:MOSI
+spi_software_miso_pin: toolhead:MISO

config/mcu_definitions/toolhead/Mellow_SHT36_v3.x.cfg

@@ -0,0 +1,20 @@
+[board_pins toolhead_manufacturer]
+mcu: toolhead
+aliases:
+    MCU_EXT_EN=gpio14 , MCU_EXT_STEP=gpio7 , MCU_EXT_DIR=gpio6 , MCU_EXT_UART=gpio15 , MCU_EXT_DIAG= ,
+
+    MCU_LIMIT_0=gpio20 , MCU_LIMIT_1=gpio16 ,
+
+    MCU_PROBE_1=gpio22 , MCU_PROBE_2=gpio24 ,
+
+    MCU_FAN0=gpio13 , MCU_FAN1=gpio21 ,
+
+    MCU_TH0=gpio27 , MCU_PT100=gpio17 , MCU_TC0= ,
+
+    MCU_HE0=gpio23 ,
+
+    MCU_RGBLED=gpio26 ,
+
+    MCU_SW_SCK=gpio2 , MCU_SW_MISO=gpio4 , MCU_SW_MOSI=gpio3 ,
+    MCU_LIS2DW_CS=gpio12 ,
+    MCU_MAX31865_CS=gpio17 ,

user_templates/mcu_defaults/toolhead/Mellow_SHT36_v3.x.cfg

@@ -0,0 +1,69 @@
+
+#--------------------------------------------#
+#### Mellow SHT36 v3.x MCU definition ########
+#--------------------------------------------#
+
+[mcu toolhead]
+##--------------------------------------------------------------------
+canbus_uuid: change-me-to-the-correct-canbus-id
+##--------------------------------------------------------------------
+
+# If you want to override the wiring of the Mellow SHT, keep in mind that this
+# board is defined using the "toolhead" name. So you should use "pin: toolhead:PIN_NAME"
+# in your own overrides.cfg files.
+
+[include config/mcu_definitions/toolhead/Mellow_SHT36_v3.x.cfg] # Do not remove this line
+[board_pins sht_mcu]
+mcu: toolhead
+aliases:
+    E_STEP=MCU_EXT_STEP , E_DIR=MCU_EXT_DIR , E_ENABLE=MCU_EXT_EN , E_TMCUART=MCU_EXT_UART ,
+
+    X_STOP=MCU_LIMIT_0 , Y_STOP=MCU_LIMIT_1 ,
+    PROBE_INPUT=MCU_PROBE_1   ,
+    TOOLHEAD_SENSOR=MCU_PROBE_2 ,
+
+    E_HEATER=MCU_HE0 , E_TEMPERATURE=MCU_TH0 ,
+
+    PART_FAN=MCU_FAN0 , E_FAN=MCU_FAN1 ,
+
+    STATUS_NEOPIXEL=MCU_RGBLED ,
+
+    LIS2DW=MCU_LIS2DW_CS ,
+    SCK=MCU_SW_SCK , MISO=MCU_SW_MISO , MOSI=MCU_SW_MOSI ,
+
+
+#----------------------------------------#
+#    Mellow SHT36 v3.x pins remapping    #
+#----------------------------------------#
+
+# These pins overrides are automatically added when you select a CANbus
+# toolhead MCU during the installation process. They should provide a
+# good base to work with. Feel free to adapt to your board if needed!
+
+[extruder]
+step_pin: toolhead:E_STEP
+dir_pin: toolhead:E_DIR
+enable_pin: !toolhead:E_ENABLE
+heater_pin: toolhead:E_HEATER
+sensor_pin: toolhead:E_TEMPERATURE
+
+[probe]
+pin: ^toolhead:PROBE_INPUT
+
+[fan]
+pin: toolhead:PART_FAN
+
+[heater_fan hotend_fan]
+pin: toolhead:E_FAN
+
+## Uncomment the following line if not using sensorless homing
+## and having the X endstop plugged to the toolhead MCU
+# [stepper_x]
+# endstop_pin: ^toolhead:X_STOP
+
+[neopixel status_leds]
+pin: toolhead:STATUS_NEOPIXEL
+
+[tmc2209 extruder]
+uart_pin: toolhead:E_TMCUART
+

user_templates/printer.cfg

@@ -201,6 +201,7 @@
 # [include config/hardware/accelerometers/adxl345_Fysetc_SB_Can_TH.cfg] # For ADXL plugged in Fysetc SB Can TH boards
 # [include config/hardware/accelerometers/adxl345_nitehawk_sb.cfg] # For built in ADXL sensor on the Nitehawk SB board
 
+# [include config/hardware/accelerometers/lis2dw_sht_v3.x.cfg] # Mellow SHT36 v3
 # [include config/hardware/accelerometers/lis2dw_usb_rp2040_spi1.cfg] # For BTT S2DW V1.0, ...
 
 # [include config/hardware/accelerometers/beacon_accelerometer.cfg] # For Beacon Rev H make sure Beacon. Do not forget to include the beacon_virtual_probe in the PROBE section!