UART connection for Orange Pi Zero 2W

[mysteryjeans]

Uart cable connector for RX & TX should be separate from 5V, 5V & GND.

Orange Pi Zero 2W has reserved GPIO pin 8 & 10 for UART0 for debugging & console.

If RX & TX cable were separate, then UART5_TX on GPIO pin 11 and UART5_RX on GPIO pin 13 can be utilised.

serial: /dev/ttyS5
restart_method: command

[andriib-huma]

@mysteryjeans Any solution found?

[mysteryjeans]

@andriib-huma I had to use USB LAN to setup WiFi. Using UART5 for data, check the picture & screenshot of BOM file.

[andriib-huma]

@mysteryjeans Thanks for update. I tried to use UART5 and for some reason did not get any success. Used Debian Bullseye from OrangePi website. Tested UART5 pins according to this guide. Saw pings according to the test. Did't get it working for actual MCU connection. Only via USB connection. Can I ask you to share orangepi-config/System/Hardware config? Is there any extra steps that you did to make it work?

[mysteryjeans]

@andriib-huma did you compiled MCU firmware with UART5? You need to put MCU in boot mode before flashing firmware.

I followed this guide https://youtu.be/qtmPxSt6baU?si=DljXsvXGmKQBSn27

`[include shell_command.cfg]
[include mainsail.cfg]
[virtual_sdcard]
path: /home/klipper/printer_data/gcodes
on_error_gcode: CANCEL_PRINT

[mcu]
serial: /dev/ttyS5
restart_method: command

[printer]
kinematics: corexy
max_velocity: 400
#max_accel: 30000
#max_accel_to_decel: 24000
max_accel: 10000
max_accel_to_decel: 8000
max_z_velocity: 30
max_z_accel: 500
#square_corner_velocity: 18 # 5 is default value

[respond]
default_type: echo
default_prefix:

[force_move]
enable_force_move: true

#####################################################################

X/Y/Z Stepper Settings

#####################################################################

[stepper_x]
step_pin: gpio11
dir_pin: !gpio10
enable_pin: !gpio12
rotation_distance: 40
microsteps: 16
endstop_pin: tmc2209_stepper_x:virtual_endstop
position_min: -3
position_endstop: -3
position_max: 224
homing_speed: 40
homing_retract_dist: 0
#homing_positive_dir: true

[tmc2209 stepper_x]
uart_pin: gpio9
tx_pin: gpio8
uart_address: 0
run_current: 0.9
diag_pin: ^gpio4
driver_SGTHRS: 90
interpolate: true
stealthchop_threshold: 0

[stepper_y]
step_pin: gpio6
dir_pin: gpio5
enable_pin: !gpio7
microsteps: 16
rotation_distance: 40
#endstop_pin: ^gpio3
endstop_pin: tmc2209_stepper_y:virtual_endstop
homing_retract_dist: 0
position_min: 0
position_endstop: 181
position_max: 181
homing_speed: 40
#homing_positive_dir: true

[tmc2209 stepper_y]
uart_pin: gpio9
tx_pin: gpio8
uart_address: 2
run_current: 0.9
diag_pin: ^gpio3
driver_SGTHRS: 85
interpolate: true
stealthchop_threshold: 0

[stepper_z]
step_pin: !gpio19
dir_pin: gpio28
enable_pin: !gpio2
microsteps: 32
rotation_distance: 8
#endstop_pin: ^!gpio25
#endstop_pin: tmc2209_stepper_z:virtual_endstop
endstop_pin: probe:z_virtual_endstop
position_min: -1
position_max: 150
homing_speed: 10
homing_retract_dist: 0

[tmc2209 stepper_z]
uart_pin: gpio9
tx_pin: gpio8
uart_address: 1
run_current: 0.9
#diag_pin: ^gpio25
#driver_SGTHRS: 90
stealthchop_threshold: 999999

#####################################################################

Extruder Settings

#####################################################################

[extruder]
step_pin: gpio14
dir_pin: !gpio13
enable_pin: !gpio15
microsteps: 16

rotation_distance: 22.67895 Sherpa Micro

gear_ratio: 50:10 Sherpa Micro

rotation_distance: 53.494165 # LGX Lite gears clone, Hammingbird
gear_ratio: 44:10, 37:17 # LGX Lite gears clone, Hammingbird
full_steps_per_rotation: 200
nozzle_diameter: 0.4
filament_diameter: 1.75
heater_pin: gpio23
sensor_type: ATC Semitec 104NT-4-R025H42G
sensor_pin: gpio27
#control: pid
#pid_Kp: 22.2
#pid_Ki: 1.08
#pid_Kd: 114
min_temp: 0
max_temp: 310
max_extrude_cross_section: 1
pressure_advance: 0.04

Sherpa Micro Annex Firmware

max_extrude_only_distance: 1400.0
max_extrude_only_velocity: 120.0
max_extrude_only_accel: 1500

[tmc2209 extruder]
uart_pin: gpio9
tx_pin: gpio8
uart_address: 3
run_current: 0.700
hold_current: 0.500
stealthchop_threshold: 0
interpolate: true

#####################################################################

Probe

#####################################################################

[safe_z_home]
home_xy_position: 100.2, 34.08

A X, Y coordinate (e.g. 100, 100) where the Z homing should be

performed. This parameter must be provided.

#speed: 50.0

Speed at which the toolhead is moved to the safe Z home

coordinate. The default is 50 mm/s

z_hop: 5

Distance (in mm) to lift the Z axis prior to homing. This is

applied to any homing command, even if it doesn't home the Z axis.

If the Z axis is already homed and the current Z position is less

than z_hop, then this will lift the head to a height of z_hop. If

the Z axis is not already homed the head is lifted by z_hop.

The default is to not implement Z hop.

#z_hop_speed: 15.0

Speed (in mm/s) at which the Z axis is lifted prior to homing. The

default is 15 mm/s.

#move_to_previous: False

When set to True, the X and Y axes are reset to their previous

positions after Z axis homing. The default is False.

[output_pin probe_enable]
pin: gpio29 # The control IO pin
value: 0 # Probe default retracted

Probe deploy command

[gcode_macro PROBE_DOWN]
gcode:
SET_PIN PIN=probe_enable VALUE=1

Probe stow command

[gcode_macro PROBE_UP]
gcode:
SET_PIN PIN=probe_enable VALUE=0

[probe]
pin: ^!gpio22 # The detection IO, ^ means high-level triggered, V2 should be ^! means low-level triggered.
deactivate_on_each_sample: False
x_offset: 9.98 # Actual installed offset of MicroProbe
y_offset: 55.92 # Actual installed offset of MicroProbe
#z_offset: 0.0 # Actual installed offset of MicroProbe
speed: 5
samples: 2
samples_tolerance: 0.02
activate_gcode:
PROBE_DOWN
G4 P500 # Allow 500 milliseconds for the probe to deploy
deactivate_gcode:
PROBE_UP

[filament_switch_sensor filament_sensor]
switch_pin: ^!gpio16
pause_on_runout: TRUE
event_delay: 1.0
pause_delay: 0.5

#####################################################################

Bed Settings

#####################################################################

[bed_screws]
screw1: 20, 20
screw2: 200, 20
screw3: 200, 160
screw4: 20, 160

[bed_mesh]
speed: 250
horizontal_move_z: 3
mesh_min: 20, 60
mesh_max: 200, 160
probe_count: 8, 8
fade_start: 1
fade_end: 10
fade_target: 0
algorithm: bicubic

[screws_tilt_adjust]
screw1: 1, 0
screw1_name: front left screw
screw2: 200, 0
screw2_name: front right screw
screw3: 200, 120
screw3_name: rear right screw
screw4: 1, 120
screw4_name: rear left screw
horizontal_move_z: 5.0
speed: 200.0
screw_thread: CW-M3

[heater_bed]
heater_pin: gpio21
sensor_type: EPCOS 100K B57560G104F
sensor_pin: gpio26
#control: pid
#pid_Kp: 54.027
#pid_Ki: 0.770
#pid_Kd: 948.182
min_temp: 0
max_temp: 130

#####################################################################

Cooling Settings

#####################################################################

[heater_fan hotend_fan]
pin: gpio20
heater: extruder
heater_temp: 50.0

[fan]
pin: gpio17

[heater_fan air_filter_fan]
pin: gpio18
heater: heater_bed
heater_temp: 45.0

#####################################################################

Sensor Settings

#####################################################################

[temperature_sensor skr_pico]
sensor_type: temperature_mcu
min_temp: 0
max_temp: 90

[temperature_sensor orangepi]
sensor_type: temperature_host
min_temp: 10
max_temp: 90

#####################################################################

Input Shaper

#####################################################################

#[include PIS.cfg]

[input_shaper]
shaper_freq_x: 69.8
shaper_type_x: mzv
shaper_freq_y: 61.6
shaper_type_y: mzv

[gcode_shell_command plot_graph]
command: bash /home/klipper/printer_data/config/scripts/plot_graphs.sh
timeout: 500.0
verbose: True

#####################################################################

Macros

#####################################################################
[gcode_macro M80]
gcode:
SET_STEPPER_ENABLE STEPPER=stepper_x ENABLE=1
SET_STEPPER_ENABLE STEPPER=stepper_y ENABLE=1
SET_STEPPER_ENABLE STEPPER=stepper_z ENABLE=1

[gcode_macro M600]
gcode:
PAUSE

[gcode_macro SENSORLESS_DELAY]
gcode:
# Pause to ensure driver stall flag is clear
G4 P2000

[gcode_macro SENSORLESS_HOME_X]
gcode:
# Home
G280 X
# Move away
G1 X{ printer.toolhead.axis_minimum.x + 5 } F3000
M400

[gcode_macro SENSORLESS_HOME_Y]
gcode:
G280 Y
G1 Y{ printer.toolhead.axis_maximum.y - 5 } F3000
M400

[gcode_macro SENSORLESS_HOME_Z]
gcode:
{% if "z" in printer.toolhead.homed_axes %}
G1 Z130 F1500
M400
G280 Z
{% else %}
G280 Z
G1 Z{ printer.toolhead.axis_maximum.z - 8 } F1200
M400
G280 Z
{% endif %}

M400

[gcode_macro PROBE_HOME_Z]
gcode:
{% if "xy" not in printer.toolhead.homed_axes %}
G280
{% else %}
G280 Z
{% endif %}

[gcode_macro G28]
rename_existing: G280
gcode:
{% set flag_O = params.O|default("false") %}
{% set flag_X = params.X|default("false") %}
{% set flag_Y = params.Y|default("false") %}
{% set flag_Z = params.Z|default("false") %}

{% if (flag_Y == "false" and flag_X == "false" and flag_Z == "false") %}
{% set flag_X = "true" %}
{% set flag_Y = "true" %}
{% set flag_Z = "true" %}
{% endif %}

{% if flag_O !="false" and 'x' in printer.toolhead.homed_axes %}
{% set flag_X = "false" %}
{% endif %}

{% if flag_O !="false" and 'y' in printer.toolhead.homed_axes %}
{% set flag_Y = "false" %}
{% endif %}

{% if flag_O !="false" and 'z' in printer.toolhead.homed_axes %}
{% set flag_Z = "false" %}
{% endif %}

{% if flag_Y != "false" %}
SENSORLESS_HOME_Y
{% endif %}

{% if flag_X != "false" %}
SENSORLESS_HOME_X
{% endif %}

{% if flag_Z != "false" %}
PROBE_HOME_Z
{% endif %}

[gcode_macro START_PRINT]
gcode:
{% set BED_TEMP = params.BED|default(60)|int %}
{% set EXTRUDER_TEMP = params.EXTRUDER|default(220)|int %}
CLEAR_PAUSE

G90 ; use absolute coordinates
G92 E0 ; reset extruder

M104 S0 ; Setting extruder temp to cool down without waiting

{% if "xyz" not in printer.toolhead.homed_axes %}
G28 ; home all axis
{% endif %}

SCREWS_TILT_CALCULATE MAX_DEVIATION=0.1 # Abort print if mesh deviation is > 0.1
G1 X{ printer.toolhead.axis_minimum.x + 5 } Y{ printer.toolhead.axis_maximum.y - 5 } Z50 F6000

M190 S{BED_TEMP}
M104 S140

G28 Z
#BED_MESH_CALIBRATE PROFILE=default
BED_MESH_PROFILE LOAD=default
G1 X{ printer.toolhead.axis_minimum.x + 5 } Y{ printer.toolhead.axis_maximum.y - 5 } Z50 F6000

M109 S{EXTRUDER_TEMP}
DRAW_LINE SPEED=1800
G1 E-1.5 F900

[gcode_macro CANCEL_PRINT]
rename_existing: BASE_CANCEL_PRINT
gcode:
M220 S100 ; Reset Speed factor override percentage to default (100%)
M221 S100 ; Reset Extrude factor override percentage to default (100%)
G91 ; Set coordinates to relative
{% if printer.extruder.temperature >= 170 %}
G1 F1800 E-1 ; Retract filament 3 mm to prevent oozing
{% endif %}
;if all axis are homed, lift the hotend to leave room for hot filament to ooze and to keep it clear of the bed.
{% if printer.toolhead.homed_axes == "xyz" %}
G1 F1200 Z20 ; Move Z Axis up 10 mm to allow filament ooze freely
G90 ; Set coordinates to absolute
G1 X{ printer.toolhead.axis_minimum.x + 5 } Y{ printer.toolhead.axis_maximum.y - 5 } F3600 ; Move Printer Head Out of Way
; M84 ; Disable stepper motors - don't so the gantry stays aligned
{% endif %}
;set part fan speed to zero.
M140 S0
M104 S0
M106 S0

CLEAR_PAUSE
BASE_CANCEL_PRINT

[gcode_macro END_PRINT]
gcode:

# Move nozzle away from print while retracting
G91 ;releative positioning
G1 E-2 F2700 ;Retract a bit
G1 E-2 Z0.2 F2400 ;Retract and raise Z
G1 X-3 Y-3 F3000 ;Wipe out
G1 Z10 F1800 ;Raise Z more
    
# Turn off bed, extruder, and fan
M140 S0
M104 S0
M106 S0

G90 ; Absolute Positioning
G1 X{ printer.toolhead.axis_minimum.x + 5 } Y{ printer.toolhead.axis_maximum.y - 5 } F6000 ; Move Printer Head Out of Way
M84 X Y E ;Disable all steppers but Z

[gcode_macro DRAW_LINE]
gcode:
{% set SPEED = params.SPEED|default(900)|int %}
G92 E0 ;Reset Extruder
G1 Z2.0 F1800 ;Move Z Axis up
G1 X5.3 Y40 Z0.3 F5000 ;Move to start position
G1 X5.3 Y140.0 Z0.3 F{SPEED} E10 ;Draw the first line
G1 X5.0 Y140.0 Z0.3 F{SPEED} ;Move to side a little
G1 X5.0 Y40 Z0.3 F{SPEED}.0 E20 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
#G4 P2000

[gcode_macro WAIT_FOR_BED_TEMP]
gcode:
#Parameters
{% set s = params.S|float %}

{% if (s-20) > 0 %}
    TEMPERATURE_WAIT SENSOR=heater_bed MINIMUM={s-20} MAXIMUM={s+1}  ; Wait for bed temp (within 1 degree)
{% endif %}

[gcode_macro TEST_SPEED]
gcode:
# Speed
{% set speed = params.SPEED|default(printer.configfile.settings.printer.max_velocity)|int %}
# Iterations
{% set iterations = params.ITERATIONS|default(5)|int %}
# Acceleration
{% set accel = params.ACCEL|default(printer.configfile.settings.printer.max_accel)|int %}
# Bounding inset for large pattern (helps prevent slamming the toolhead into the sides after small skips, and helps to account for machines with imperfectly set dimensions)
{% set bound = params.BOUND|default(20)|int %}
# Size for small pattern box
{% set smallpatternsize = SMALLPATTERNSIZE|default(20)|int %}

# Large pattern
    # Max positions, inset by BOUND
    {% set x_min = printer.toolhead.axis_minimum.x + bound %}
    {% set x_max = printer.toolhead.axis_maximum.x - bound %}
    {% set y_min = printer.toolhead.axis_minimum.y + bound %}
    {% set y_max = printer.toolhead.axis_maximum.y - bound %}

# Small pattern at center
    # Find X/Y center point
    {% set x_center = (printer.toolhead.axis_minimum.x|float + printer.toolhead.axis_maximum.x|float ) / 2 %}
    {% set y_center = (printer.toolhead.axis_minimum.y|float + printer.toolhead.axis_maximum.y|float ) / 2 %}
    
    # Set small pattern box around center point
    {% set x_center_min = x_center - (smallpatternsize/2) %}
    {% set x_center_max = x_center + (smallpatternsize/2) %}
    {% set y_center_min = y_center - (smallpatternsize/2) %}
    {% set y_center_max = y_center + (smallpatternsize/2) %}

# Save current gcode state (absolute/relative, etc)
SAVE_GCODE_STATE NAME=TEST_SPEED

# Output parameters to g-code terminal
{ action_respond_info("TEST_SPEED: starting %d iterations at speed %d, accel %d" % (iterations, speed, accel)) }

# Home and get position for comparison later:
    M400 # Finish moves - https://github.com/AndrewEllis93/Print-Tuning-Guide/issues/66
    G28
    # QGL if not already QGLd (only if QGL section exists in config)
    {% if printer.configfile.settings.quad_gantry_level %}
        {% if printer.quad_gantry_level.applied == False %}
            QUAD_GANTRY_LEVEL
            G28 Z
        {% endif %}
    {% endif %} 
    # Move 50mm away from max position and home again (to help with hall effect endstop accuracy - https://github.com/AndrewEllis93/Print-Tuning-Guide/issues/24)
    G90
    G1 X{printer.toolhead.axis_maximum.x-50} Y{printer.toolhead.axis_maximum.y-50} F{30*60}
    M400 # Finish moves - https://github.com/AndrewEllis93/Print-Tuning-Guide/issues/66
    G28 X Y
    G0 X{printer.toolhead.axis_maximum.x-1} Y{printer.toolhead.axis_maximum.y-1} F{30*60}
    G4 P1000 
    GET_POSITION

# Go to starting position
G0 X{x_min} Y{y_min} Z{bound + 10} F{speed*60}

# Set new limits
SET_VELOCITY_LIMIT VELOCITY={speed} ACCEL={accel} ACCEL_TO_DECEL={accel / 2}

{% for i in range(iterations) %}
    RESPOND PREFIX="TEST_SPEED:" MSG="{"starting iteration no %d at speed %d, accel %d" % (i + 1, speed, accel)}"
    # Large pattern diagonals
    G0 X{x_min} Y{y_min} F{speed*60}
    G0 X{x_max} Y{y_max} F{speed*60}
    G0 X{x_min} Y{y_min} F{speed*60}
    G0 X{x_max} Y{y_min} F{speed*60}
    G0 X{x_min} Y{y_max} F{speed*60}
    G0 X{x_max} Y{y_min} F{speed*60}
    
    # Large pattern box
    G0 X{x_min} Y{y_min} F{speed*60}
    G0 X{x_min} Y{y_max} F{speed*60}
    G0 X{x_max} Y{y_max} F{speed*60}
    G0 X{x_max} Y{y_min} F{speed*60}

    # Small pattern diagonals
    G0 X{x_center_min} Y{y_center_min} F{speed*60}
    G0 X{x_center_max} Y{y_center_max} F{speed*60}
    G0 X{x_center_min} Y{y_center_min} F{speed*60}
    G0 X{x_center_max} Y{y_center_min} F{speed*60}
    G0 X{x_center_min} Y{y_center_max} F{speed*60}
    G0 X{x_center_max} Y{y_center_min} F{speed*60}
    
    # Small patternbox
    G0 X{x_center_min} Y{y_center_min} F{speed*60}
    G0 X{x_center_min} Y{y_center_max} F{speed*60}
    G0 X{x_center_max} Y{y_center_max} F{speed*60}
    G0 X{x_center_max} Y{y_center_min} F{speed*60}
{% endfor %}

# Restore max speed/accel/accel_to_decel to their configured values
SET_VELOCITY_LIMIT VELOCITY={printer.configfile.settings.printer.max_velocity} ACCEL={printer.configfile.settings.printer.max_accel} ACCEL_TO_DECEL={printer.configfile.settings.printer.max_accel_to_decel} 

# Re-home and get position again for comparison:
    M400 # Finish moves - https://github.com/AndrewEllis93/Print-Tuning-Guide/issues/66
    G28 # This is a full G28 to fix an issue with CoreXZ - https://github.com/AndrewEllis93/Print-Tuning-Guide/issues/12
    # Go to XY home positions (in case your homing override leaves it elsewhere)
    G90
    G0 X{printer.toolhead.axis_maximum.x-1} Y{printer.toolhead.axis_maximum.y-1} F{30*60}
    G4 P1000 
    GET_POSITION

# Restore previous gcode state (absolute/relative, etc)
RESTORE_GCODE_STATE NAME=TEST_SPEED

[gcode_macro AXES_SHAPER_CALIBRATION]
description: Run standard input shaper test for all axes
gcode:
{% set verbose = params.VERBOSE|default(true) %}
{% set min_freq = params.FREQ_START|default(5)|float %}
{% set max_freq = params.FREQ_END|default(133.3)|float %}
{% set hz_per_sec = params.HZ_PER_SEC|default(1)|float %}

TEST_RESONANCES AXIS=X FREQ_START={min_freq} FREQ_END={max_freq} HZ_PER_SEC={hz_per_sec}
M400
TEST_RESONANCES AXIS=Y FREQ_START={min_freq} FREQ_END={max_freq} HZ_PER_SEC={hz_per_sec}
M400

{% if verbose %}
    RESPOND MSG="Graphs generation... Please wait a minute or two and look in the configured folder."
{% endif %}
RUN_SHELL_COMMAND CMD=plot_graph PARAMS=SHAPER

[gcode_macro BELTS_SHAPER_CALIBRATION]
description: Run custom demi-axe test to analyze belts on CoreXY printers
gcode:
{% set verbose = params.VERBOSE|default(true) %}
{% set min_freq = params.FREQ_START|default(5)|float %}
{% set max_freq = params.FREQ_END|default(133.33)|float %}
{% set hz_per_sec = params.HZ_PER_SEC|default(1)|float %}

TEST_RESONANCES AXIS=1,1 OUTPUT=raw_data NAME=b FREQ_START={min_freq} FREQ_END={max_freq} HZ_PER_SEC={hz_per_sec}
M400
TEST_RESONANCES AXIS=1,-1 OUTPUT=raw_data NAME=a FREQ_START={min_freq} FREQ_END={max_freq} HZ_PER_SEC={hz_per_sec}
M400

{% if verbose %}
    RESPOND MSG="Graphs generation... Please wait a minute or two and look in the configured folder."
{% endif %}
RUN_SHELL_COMMAND CMD=plot_graph PARAMS=BELTS

[gcode_macro EXCITATE_AXIS_AT_FREQ]
description: Maintain a specified input shaper excitating frequency for some time to diagnose vibrations
gcode:
{% set FREQUENCY = params.FREQUENCY|default(25)|int %}
{% set TIME = params.TIME|default(10)|int %}
{% set AXIS = params.AXIS|default("x")|string|lower %}

TEST_RESONANCES OUTPUT=raw_data AXIS={AXIS} FREQ_START={FREQUENCY-1} FREQ_END={FREQUENCY+1} HZ_PER_SEC={1/(TIME/3)}
M400

## <---------------------- SAVE_CONFIG ---------------------->
## DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
##
## [extruder]
## control = pid
## pid_kp = 21.848
## pid_ki = 1.601
## pid_kd = 74.556
##
## [heater_bed]
## control = pid
## pid_kp = 67.001
## pid_ki = 2.774
## pid_kd = 404.517
##
## [probe]
## z_offset = 0.570
##
## [bed_mesh default]
## version = 1
## points =
## 0.064375, 0.056250, 0.054375, 0.056250, 0.050625, 0.063125, 0.062500, 0.055000
## 0.068125, 0.065000, 0.046250, 0.059375, 0.075000, 0.043125, 0.058750, 0.051875
## 0.068750, 0.053750, 0.046875, 0.033125, 0.045000, 0.024375, 0.048750, 0.033750
#*# 0.075000, 0.065000, 0.058750, 0.041875, 0.041250, 0.032500, 0.034375, 0.03`

[andriib-huma]

@mysteryjeans Thanks again. I was also inspired to give my first printer a new coat of paint because of The 100 Project)). So I was able to to make it work. Not sure why it didn't in the first place. But I reflashed the SD Card, enabled UART5, connected everything, and it worked.

So I will leave some of my steps for troubleshooting the issues.

1. /boot/orangepiEnv.txt should look like this

verbosity=1
bootlogo=false
console=both
disp_mode=1920x1080p60
overlay_prefix=sun50i-h616
rootdev=UUID=6cd6cb54-48bc-4b6a-a615-2abfb7d74fe0
rootfstype=ext4
overlays=ph-uart5
dtoverlay=pi3-miniuart-bt
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u

2. My printer.cfg

[mcu]
serial: /dev/ttyS5
restart_method: command

3. Created the flash image using ./kiauh/kiauh.sh -> 4) [Advanced] -> 2) [Build only] ->

And then copied to BTT Pico with USB and Bootloader jumpers installed. Also before I copied, I pressed Reset button.

4. Connected same as on attached picture by @mysteryjeans. And it worked. (Didn't work for the first time, and I still not sure why)