Controller board: ESP32 + 2x StepStick carrier (v0.4), FluidNC config

- KiCad project generated by pcb/tools (design, route, schematic, fab outputs).
- v0.4 fixes the v0.3 review findings: low-dropout 3.3 V regulator, OR'd 5 V
  supply, polyfuse, USB ESD protection, input clamps, ceramic decoupling at the
  drivers, A4988/DRV8825 jumper, ground stitching. DRC/ERC clean.
- v0.3 (as ordered) kept in pcb/archive/v0.3.
- FluidNC config.yaml for the board; rho hard limit on.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ckochandClaude Opus 5.5 committed 2026-11-01 13:40:23 -05:00
1 parent c498882bbb
commit 1400cc8afd
46 files changed
+226470

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(fp_lib_table
(version 7)
(lib (name "Button_Switch_SMD")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Button_Switch_SMD.pretty")(options "")(descr ""))
(lib (name "Capacitor_SMD")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Capacitor_SMD.pretty")(options "")(descr ""))
(lib (name "Connector_BarrelJack")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Connector_BarrelJack.pretty")(options "")(descr ""))
(lib (name "Connector_JST")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Connector_JST.pretty")(options "")(descr ""))
(lib (name "Connector_PinHeader_2.54mm")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Connector_PinHeader_2.54mm.pretty")(options "")(descr ""))
(lib (name "Connector_USB")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Connector_USB.pretty")(options "")(descr ""))
(lib (name "Converter_DCDC")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Converter_DCDC.pretty")(options "")(descr ""))
(lib (name "Diode_SMD")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Diode_SMD.pretty")(options "")(descr ""))
(lib (name "Fuse")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Fuse.pretty")(options "")(descr ""))
(lib (name "Jumper")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Jumper.pretty")(options "")(descr ""))
(lib (name "LED_SMD")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/LED_SMD.pretty")(options "")(descr ""))
(lib (name "Module")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Module.pretty")(options "")(descr ""))
(lib (name "MountingHole")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/MountingHole.pretty")(options "")(descr ""))
(lib (name "Package_SO")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Package_SO.pretty")(options "")(descr ""))
(lib (name "Package_TO_SOT_SMD")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Package_TO_SOT_SMD.pretty")(options "")(descr ""))
(lib (name "RF_Module")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/RF_Module.pretty")(options "")(descr ""))
(lib (name "Resistor_SMD")(type "KiCad")(uri "${KICAD9_FOOTPRINT_DIR}/Resistor_SMD.pretty")(options "")(descr ""))
)
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{
"board": {
"3dviewports": [],
"design_settings": {
"defaults": {
"apply_defaults_to_fp_fields": false,
"apply_defaults_to_fp_shapes": false,
"apply_defaults_to_fp_text": false,
"board_outline_line_width": 0.05,
"copper_line_width": 0.2,
"copper_text_italic": false,
"copper_text_size_h": 1.5,
"copper_text_size_v": 1.5,
"copper_text_thickness": 0.3,
"copper_text_upright": false,
"courtyard_line_width": 0.05,
"dimension_precision": 4,
"dimension_units": 3,
"dimensions": {
"arrow_length": 1270000,
"extension_offset": 500000,
"keep_text_aligned": true,
"suppress_zeroes": false,
"text_position": 0,
"units_format": 1
},
"fab_line_width": 0.1,
"fab_text_italic": false,
"fab_text_size_h": 1.0,
"fab_text_size_v": 1.0,
"fab_text_thickness": 0.15,
"fab_text_upright": false,
"other_line_width": 0.1,
"other_text_italic": false,
"other_text_size_h": 1.0,
"other_text_size_v": 1.0,
"other_text_thickness": 0.15,
"other_text_upright": false,
"pads": {
"drill": 0.0,
"height": 8.0,
"width": 2.54
},
"silk_line_width": 0.12,
"silk_text_italic": false,
"silk_text_size_h": 1.0,
"silk_text_size_v": 1.0,
"silk_text_thickness": 0.15,
"silk_text_upright": false,
"zones": {
"min_clearance": 0.508
}
},
"diff_pair_dimensions": [],
"drc_exclusions": [],
"meta": {
"filename": "board_design_settings.json",
"version": 2
},
"rule_severities": {
"annular_width": "error",
"clearance": "error",
"connection_width": "warning",
"copper_edge_clearance": "error",
"copper_sliver": "warning",
"courtyards_overlap": "error",
"creepage": "error",
"diff_pair_gap_out_of_range": "error",
"diff_pair_uncoupled_length_too_long": "error",
"drill_out_of_range": "error",
"duplicate_footprints": "warning",
"extra_footprint": "warning",
"footprint": "error",
"footprint_filters_mismatch": "ignore",
"footprint_symbol_mismatch": "warning",
"footprint_type_mismatch": "ignore",
"hole_clearance": "error",
"hole_near_hole": "error",
"hole_to_hole": "error",
"holes_co_located": "warning",
"invalid_outline": "error",
"isolated_copper": "warning",
"item_on_disabled_layer": "error",
"items_not_allowed": "error",
"length_out_of_range": "error",
"lib_footprint_issues": "ignore",
"lib_footprint_mismatch": "ignore",
"malformed_courtyard": "error",
"microvia_drill_out_of_range": "error",
"mirrored_text_on_front_layer": "warning",
"missing_courtyard": "ignore",
"missing_footprint": "warning",
"net_conflict": "warning",
"nonmirrored_text_on_back_layer": "warning",
"npth_inside_courtyard": "ignore",
"padstack": "warning",
"pth_inside_courtyard": "ignore",
"shorting_items": "error",
"silk_edge_clearance": "ignore",
"silk_over_copper": "ignore",
"silk_overlap": "ignore",
"skew_out_of_range": "error",
"solder_mask_bridge": "error",
"starved_thermal": "error",
"text_height": "ignore",
"text_thickness": "warning",
"through_hole_pad_without_hole": "error",
"too_many_vias": "error",
"track_angle": "error",
"track_dangling": "warning",
"track_segment_length": "error",
"track_width": "error",
"tracks_crossing": "error",
"unconnected_items": "error",
"unresolved_variable": "error",
"via_dangling": "warning",
"zones_intersect": "error"
},
"rules": {
"max_error": 0.005,
"min_clearance": 0.16,
"min_connection": 0.0,
"min_copper_edge_clearance": 0.3,
"min_groove_width": 0.0,
"min_hole_clearance": 0.2,
"min_hole_to_hole": 0.25,
"min_microvia_diameter": 0.2,
"min_microvia_drill": 0.1,
"min_resolved_spokes": 2,
"min_silk_clearance": 0.0,
"min_text_height": 0.8,
"min_text_thickness": 0.08,
"min_through_hole_diameter": 0.3,
"min_track_width": 0.16,
"min_via_annular_width": 0.15,
"min_via_diameter": 0.6,
"solder_mask_to_copper_clearance": 0.0,
"use_height_for_length_calcs": true
},
"teardrop_options": [
{
"td_onpthpad": true,
"td_onroundshapesonly": false,
"td_onsmdpad": true,
"td_ontrackend": false,
"td_onvia": true
}
],
"teardrop_parameters": [
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_round_shape",
"td_width_to_size_filter_ratio": 0.9
},
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_rect_shape",
"td_width_to_size_filter_ratio": 0.9
},
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_track_end",
"td_width_to_size_filter_ratio": 0.9
}
],
"track_widths": [],
"tuning_pattern_settings": {
"diff_pair_defaults": {
"corner_radius_percentage": 80,
"corner_style": 1,
"max_amplitude": 1.0,
"min_amplitude": 0.2,
"single_sided": false,
"spacing": 1.0
},
"diff_pair_skew_defaults": {
"corner_radius_percentage": 80,
"corner_style": 1,
"max_amplitude": 1.0,
"min_amplitude": 0.2,
"single_sided": false,
"spacing": 0.6
},
"single_track_defaults": {
"corner_radius_percentage": 80,
"corner_style": 1,
"max_amplitude": 1.0,
"min_amplitude": 0.2,
"single_sided": false,
"spacing": 0.6
}
},
"via_dimensions": [],
"zones_allow_external_fillets": false
},
"ipc2581": {
"dist": "",
"distpn": "",
"internal_id": "",
"mfg": "",
"mpn": ""
},
"layer_pairs": [],
"layer_presets": [],
"viewports": []
},
"cvpcb": {
"equivalence_files": []
},
"erc": {
"erc_exclusions": [],
"meta": {
"version": 0
},
"pin_map": [
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],
"rule_severities": {
"bus_definition_conflict": "error",
"bus_entry_needed": "error",
"bus_to_bus_conflict": "error",
"bus_to_net_conflict": "error",
"conflicting_netclasses": "error",
"different_unit_footprint": "error",
"different_unit_net": "error",
"duplicate_reference": "error",
"duplicate_sheet_names": "error",
"endpoint_off_grid": "warning",
"extra_units": "error",
"footprint_filter": "ignore",
"footprint_link_issues": "warning",
"four_way_junction": "ignore",
"global_label_dangling": "warning",
"hier_label_mismatch": "error",
"label_dangling": "error",
"label_multiple_wires": "warning",
"lib_symbol_issues": "warning",
"lib_symbol_mismatch": "warning",
"missing_bidi_pin": "warning",
"missing_input_pin": "warning",
"missing_power_pin": "error",
"missing_unit": "warning",
"multiple_net_names": "warning",
"net_not_bus_member": "warning",
"no_connect_connected": "warning",
"no_connect_dangling": "warning",
"pin_not_connected": "error",
"pin_not_driven": "error",
"pin_to_pin": "warning",
"power_pin_not_driven": "error",
"same_local_global_label": "warning",
"similar_label_and_power": "warning",
"similar_labels": "warning",
"similar_power": "warning",
"simulation_model_issue": "ignore",
"single_global_label": "ignore",
"unannotated": "error",
"unconnected_wire_endpoint": "warning",
"unit_value_mismatch": "error",
"unresolved_variable": "error",
"wire_dangling": "error"
}
},
"libraries": {
"pinned_footprint_libs": [],
"pinned_symbol_libs": []
},
"meta": {
"filename": "sandtable-controller.kicad_pro",
"version": 3
},
"net_settings": {
"classes": [
{
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"clearance": 0.16,
"diff_pair_gap": 0.25,
"diff_pair_via_gap": 0.25,
"diff_pair_width": 0.2,
"line_style": 0,
"microvia_diameter": 0.3,
"microvia_drill": 0.1,
"name": "Default",
"pcb_color": "rgba(0, 0, 0, 0.000)",
"priority": 2147483647,
"schematic_color": "rgba(0, 0, 0, 0.000)",
"track_width": 0.2,
"via_diameter": 0.6,
"via_drill": 0.3,
"wire_width": 6
},
{
"bus_width": 12,
"clearance": 0.2,
"diff_pair_gap": 0.25,
"diff_pair_via_gap": 0.25,
"diff_pair_width": 0.2,
"line_style": 0,
"microvia_diameter": 0.3,
"microvia_drill": 0.1,
"name": "Power",
"pcb_color": "rgba(0, 0, 0, 0.000)",
"priority": 0,
"schematic_color": "rgba(0, 0, 0, 0.000)",
"track_width": 0.8,
"via_diameter": 0.6,
"via_drill": 0.3,
"wire_width": 6
},
{
"bus_width": 12,
"clearance": 0.2,
"diff_pair_gap": 0.25,
"diff_pair_via_gap": 0.25,
"diff_pair_width": 0.2,
"line_style": 0,
"microvia_diameter": 0.3,
"microvia_drill": 0.1,
"name": "Motor",
"pcb_color": "rgba(0, 0, 0, 0.000)",
"priority": 0,
"schematic_color": "rgba(0, 0, 0, 0.000)",
"track_width": 0.5,
"via_diameter": 0.6,
"via_drill": 0.3,
"wire_width": 6
},
{
"bus_width": 12,
"clearance": 0.2,
"diff_pair_gap": 0.25,
"diff_pair_via_gap": 0.25,
"diff_pair_width": 0.2,
"line_style": 0,
"microvia_diameter": 0.3,
"microvia_drill": 0.1,
"name": "Rail",
"pcb_color": "rgba(0, 0, 0, 0.000)",
"priority": 0,
"schematic_color": "rgba(0, 0, 0, 0.000)",
"track_width": 0.5,
"via_diameter": 0.6,
"via_drill": 0.3,
"wire_width": 6
}
],
"meta": {
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},
"net_colors": null,
"netclass_assignments": null,
"netclass_patterns": [
{
"netclass": "Power",
"pattern": "/GND"
},
{
"netclass": "Power",
"pattern": "/VIN_RAW"
},
{
"netclass": "Power",
"pattern": "/VIN_FUSED"
},
{
"netclass": "Power",
"pattern": "/+12V"
},
{
"netclass": "Motor",
"pattern": "/X_1A"
},
{
"netclass": "Motor",
"pattern": "/X_1B"
},
{
"netclass": "Motor",
"pattern": "/X_2A"
},
{
"netclass": "Motor",
"pattern": "/X_2B"
},
{
"netclass": "Motor",
"pattern": "/Y_1A"
},
{
"netclass": "Motor",
"pattern": "/Y_1B"
},
{
"netclass": "Motor",
"pattern": "/Y_2A"
},
{
"netclass": "Motor",
"pattern": "/Y_2B"
},
{
"netclass": "Rail",
"pattern": "/+5V"
},
{
"netclass": "Rail",
"pattern": "/+5V_REG"
},
{
"netclass": "Rail",
"pattern": "/VBUS"
},
{
"netclass": "Rail",
"pattern": "/+3V3"
}
]
},
"pcbnew": {
"last_paths": {
"gencad": "",
"idf": "",
"netlist": "",
"plot": "",
"pos_files": "",
"specctra_dsn": "",
"step": "",
"svg": "",
"vrml": ""
},
"page_layout_descr_file": ""
},
"schematic": {
"annotate_start_num": 0,
"bom_export_filename": "${PROJECTNAME}.csv",
"bom_fmt_presets": [],
"bom_fmt_settings": {
"field_delimiter": ",",
"keep_line_breaks": false,
"keep_tabs": false,
"name": "CSV",
"ref_delimiter": ",",
"ref_range_delimiter": "",
"string_delimiter": "\""
},
"bom_presets": [],
"bom_settings": {
"exclude_dnp": false,
"fields_ordered": [
{
"group_by": false,
"label": "Reference",
"name": "Reference",
"show": true
},
{
"group_by": true,
"label": "Value",
"name": "Value",
"show": true
},
{
"group_by": false,
"label": "Datasheet",
"name": "Datasheet",
"show": true
},
{
"group_by": false,
"label": "Footprint",
"name": "Footprint",
"show": true
},
{
"group_by": false,
"label": "Qty",
"name": "${QUANTITY}",
"show": true
},
{
"group_by": true,
"label": "DNP",
"name": "${DNP}",
"show": true
}
],
"filter_string": "",
"group_symbols": true,
"include_excluded_from_bom": false,
"name": "Grouped By Value",
"sort_asc": true,
"sort_field": "Reference"
},
"connection_grid_size": 50.0,
"drawing": {
"dashed_lines_dash_length_ratio": 12.0,
"dashed_lines_gap_length_ratio": 3.0,
"default_line_thickness": 6.0,
"default_text_size": 50.0,
"field_names": [],
"intersheets_ref_own_page": false,
"intersheets_ref_prefix": "",
"intersheets_ref_short": false,
"intersheets_ref_show": false,
"intersheets_ref_suffix": "",
"junction_size_choice": 3,
"label_size_ratio": 0.25,
"operating_point_overlay_i_precision": 3,
"operating_point_overlay_i_range": "~A",
"operating_point_overlay_v_precision": 3,
"operating_point_overlay_v_range": "~V",
"overbar_offset_ratio": 1.23,
"pin_symbol_size": 0.0,
"text_offset_ratio": 0.08
},
"legacy_lib_dir": "",
"legacy_lib_list": [],
"meta": {
"version": 1
},
"net_format_name": "",
"page_layout_descr_file": "",
"plot_directory": "",
"space_save_all_events": true,
"spice_current_sheet_as_root": false,
"spice_external_command": "spice \"%I\"",
"spice_model_current_sheet_as_root": true,
"spice_save_all_currents": false,
"spice_save_all_dissipations": false,
"spice_save_all_voltages": false,
"subpart_first_id": 65,
"subpart_id_separator": 0
},
"sheets": [
[
"d585c3d2-c803-5c74-8a05-da481956c6b2",
"Root"
]
],
"text_variables": {}
}
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(kicad_symbol_lib
(version 20241209)
(generator "sandtable-gen")
(generator_version "9.0")
(symbol "CH340C_3V3"
(exclude_from_sim no)
(in_bom yes)
(on_board yes)
(property "Reference" "U"
(at -5.08 13.97 0)
(effects
(font
(size 1.27 1.27)
)
(justify right)
)
)
(property "Value" "CH340C"
(at 1.27 13.97 0)
(effects
(font
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)
(justify left)
)
)
(property "Footprint" "Package_SO:SOIC-16_3.9x9.9mm_P1.27mm"
(at -18.542 30.226 0)
(effects
(font
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)
(justify left)
(hide yes)
)
)
(property "Datasheet" "https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf"
(at -6.604 33.274 0)
(effects
(font
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)
(hide yes)
)
)
(property "Description" "USB serial converter, crystal-less, UART, SOIC-16"
(at -1.524 36.068 0)
(effects
(font
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)
(hide yes)
)
)
(property "ki_keywords" "USB UART Serial Converter Interface"
(at 0 0 0)
(effects
(font
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(hide yes)
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)
(property "ki_fp_filters" "SOIC*3.9x9.9mm*P1.27mm*"
(at 0 0 0)
(effects
(font
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)
(hide yes)
)
)
(symbol "CH340C_3V3_0_1"
(rectangle
(start -7.62 12.7)
(end 7.62 -12.7)
(stroke
(width 0.254)
(type default)
)
(fill
(type background)
)
)
)
(symbol "CH340C_3V3_1_1"
(pin input line
(at -10.16 7.62 0)
(length 2.54)
(name "R232"
(effects
(font
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+19
View File
@@ -0,0 +1,19 @@
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(lib (name "Transistor_BJT")(type "KiCad")(uri "${KICAD9_SYMBOL_DIR}/Transistor_BJT.kicad_sym")(options "")(descr ""))
(lib (name "power")(type "KiCad")(uri "${KICAD9_SYMBOL_DIR}/power.kicad_sym")(options "")(descr ""))
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