pcb: Add TLV70233 voltage converter

This IC has a small footprint and will provide the 3.3 V for the
microcontroller.

3 files changed, 318 insertions, 9 deletions

diff --git a/pcb/connectors.kicad_sch b/pcb/connectors.kicad_sch
index b05c89a..6d08c5a 100644
--- a/pcb/connectors.kicad_sch
+++ b/pcb/connectors.kicad_sch
@@ -1284,6 +1284,80 @@
 			)
 		)
 	)
+	(wire
+		(pts
+			(xy 77.47 165.1) (xy 101.6 165.1)
+		)
+		(stroke
+			(width 0)
+			(type default)
+		)
+		(uuid "005a8962-530b-469c-a8a2-cfddada1f70b")
+	)
+	(wire
+		(pts
+			(xy 77.47 158.75) (xy 77.47 165.1)
+		)
+		(stroke
+			(width 0)
+			(type default)
+		)
+		(uuid "6213ebd9-f30a-4eac-83e2-a2c96b2839de")
+	)
+	(wire
+		(pts
+			(xy 92.71 92.71) (xy 101.6 92.71)
+		)
+		(stroke
+			(width 0)
+			(type default)
+		)
+		(uuid "be5a6e88-23aa-4824-b155-1e6f91b78411")
+	)
+	(global_label "VBUS"
+		(shape input)
+		(at 101.6 92.71 0)
+		(fields_autoplaced yes)
+		(effects
+			(font
+				(size 1.27 1.27)
+			)
+			(justify left)
+		)
+		(uuid "796c18e9-bae0-452e-9457-0dfd6a1c85b4")
+		(property "Intersheetrefs" "${INTERSHEET_REFS}"
+			(at 109.4838 92.71 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left)
+				(hide yes)
+			)
+		)
+	)
+	(global_label "GND"
+		(shape input)
+		(at 101.6 165.1 0)
+		(fields_autoplaced yes)
+		(effects
+			(font
+				(size 1.27 1.27)
+			)
+			(justify left)
+		)
+		(uuid "8c677c04-4f48-4313-a237-b60ab1d867ae")
+		(property "Intersheetrefs" "${INTERSHEET_REFS}"
+			(at 108.4557 165.1 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left)
+				(hide yes)
+			)
+		)
+	)
 	(symbol
 		(lib_id "Connector:USB_C_Receptacle")
 		(at 77.47 118.11 0)
diff --git a/pcb/iot-contact.kicad_pro b/pcb/iot-contact.kicad_pro
index 747a1f0..8bc17ec 100644
--- a/pcb/iot-contact.kicad_pro
+++ b/pcb/iot-contact.kicad_pro
@@ -2,12 +2,204 @@
   "board": {
     "3dviewports": [],
     "design_settings": {
-      "defaults": {},
+      "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": 0.762,
+          "height": 1.524,
+          "width": 1.524
+        },
+        "silk_line_width": 0.1,
+        "silk_text_italic": false,
+        "silk_text_size_h": 1.0,
+        "silk_text_size_v": 1.0,
+        "silk_text_thickness": 0.1,
+        "silk_text_upright": false,
+        "zones": {
+          "min_clearance": 0.5
+        }
+      },
       "diff_pair_dimensions": [],
       "drc_exclusions": [],
-      "rules": {},
+      "meta": {
+        "version": 2
+      },
+      "rule_severities": {
+        "annular_width": "error",
+        "clearance": "error",
+        "connection_width": "warning",
+        "copper_edge_clearance": "error",
+        "copper_sliver": "warning",
+        "courtyards_overlap": "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_symbol_mismatch": "warning",
+        "footprint_type_mismatch": "ignore",
+        "hole_clearance": "error",
+        "hole_near_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": "warning",
+        "lib_footprint_mismatch": "warning",
+        "malformed_courtyard": "error",
+        "microvia_drill_out_of_range": "error",
+        "missing_courtyard": "ignore",
+        "missing_footprint": "warning",
+        "net_conflict": "warning",
+        "npth_inside_courtyard": "ignore",
+        "padstack": "warning",
+        "pth_inside_courtyard": "ignore",
+        "shorting_items": "error",
+        "silk_edge_clearance": "warning",
+        "silk_over_copper": "warning",
+        "silk_overlap": "warning",
+        "skew_out_of_range": "error",
+        "solder_mask_bridge": "error",
+        "starved_thermal": "error",
+        "text_height": "warning",
+        "text_thickness": "warning",
+        "through_hole_pad_without_hole": "error",
+        "too_many_vias": "error",
+        "track_dangling": "warning",
+        "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": 0.0,
+        "min_connection": 0.0,
+        "min_copper_edge_clearance": 0.5,
+        "min_hole_clearance": 0.25,
+        "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": 0.0,
+        "min_via_annular_width": 0.1,
+        "min_via_diameter": 0.5,
+        "solder_mask_to_copper_clearance": 0.0,
+        "use_height_for_length_calcs": true
+      },
+      "teardrop_options": [
+        {
+          "td_onpadsmd": true,
+          "td_onroundshapesonly": false,
+          "td_ontrackend": false,
+          "td_onviapad": 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": [],
-      "via_dimensions": []
+      "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": "",
@@ -285,6 +477,7 @@
   },
   "schematic": {
     "annotate_start_num": 0,
+    "bom_export_filename": "",
     "bom_fmt_presets": [],
     "bom_fmt_settings": {
       "field_delimiter": ",",
@@ -393,6 +586,10 @@
     [
       "562b8d7c-87b5-419b-9a10-da73b0ab4e4d",
       "connectors"
+    ],
+    [
+      "5a8e5d47-76b9-476b-9597-6cb603197bd2",
+      "power"
     ]
   ],
   "text_variables": {}
diff --git a/pcb/iot-contact.kicad_sch b/pcb/iot-contact.kicad_sch
index b6ba639..8091725 100644
--- a/pcb/iot-contact.kicad_sch
+++ b/pcb/iot-contact.kicad_sch
@@ -6,7 +6,7 @@
 	(paper "A4")
 	(lib_symbols)
 	(sheet
-		(at 113.03 63.5)
+		(at 38.1 78.74)
 		(size 53.34 33.02)
 		(fields_autoplaced yes)
 		(stroke
@@ -18,7 +18,7 @@
 		)
 		(uuid "562b8d7c-87b5-419b-9a10-da73b0ab4e4d")
 		(property "Sheetname" "connectors"
-			(at 113.03 62.7884 0)
+			(at 38.1 78.0284 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -27,7 +27,7 @@
 			)
 		)
 		(property "Sheetfile" "connectors.kicad_sch"
-			(at 113.03 97.1046 0)
+			(at 38.1 112.3446 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -44,7 +44,45 @@
 		)
 	)
 	(sheet
-		(at 43.18 63.5)
+		(at 118.11 78.74)
+		(size 50.8 33.02)
+		(fields_autoplaced yes)
+		(stroke
+			(width 0.1524)
+			(type solid)
+		)
+		(fill
+			(color 0 0 0 0.0000)
+		)
+		(uuid "5a8e5d47-76b9-476b-9597-6cb603197bd2")
+		(property "Sheetname" "power"
+			(at 118.11 78.0284 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left bottom)
+			)
+		)
+		(property "Sheetfile" "power.kicad_sch"
+			(at 118.11 112.3446 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left top)
+			)
+		)
+		(instances
+			(project "iot-contact"
+				(path "/856885f2-6f46-4c40-9529-c8ec9ab48dce"
+					(page "4")
+				)
+			)
+		)
+	)
+	(sheet
+		(at 198.12 78.74)
 		(size 49.53 31.75)
 		(fields_autoplaced yes)
 		(stroke
@@ -56,7 +94,7 @@
 		)
 		(uuid "bfc23983-2e62-429d-ab68-83d0a8643b81")
 		(property "Sheetname" "microcontroller"
-			(at 43.18 62.7884 0)
+			(at 198.12 78.0284 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -65,7 +103,7 @@
 			)
 		)
 		(property "Sheetfile" "microcontroller.kicad_sch"
-			(at 43.18 95.8346 0)
+			(at 198.12 111.0746 0)
 			(effects
 				(font
 					(size 1.27 1.27)