Schematic for Particular Blue KITT: Integration of 2.9" Raw E-...

Raspberry Pi HAT Design

0:00

Autopilot

Work completed

Removed Waveshare connector and associated nets
Added raw 2.9" e-paper FPC connector placeholder (J2) with pins Gx, Sx, VCOM, VGL, VGH, VDD, RES, CLK, DIN, CS, AUX
Placed TI TPS65185RSLR as the e-paper driver (U6)
Added supporting passive components:
- Capacitors C17, C18, C19, C20, C21
- Series damping resistor R9 on SCLK
- Pull-ups R10 on BUSY and R11 on RST
Wired PMIC power rails:
- U6:VGH to FPC VGH
- U6:VGL to FPC VGL
- U6:VCOM to FPC VCOM
- U6:VIN to boost converter 5 V net
- U6:VIN3P3 to Pi 3.3 V net
Rewired Pi SPI and control lines:
- MOSI, MISO, SCLK (via R9), CS, DC, RST, BUSY remapped to J2 pins
Added test points for MOSI, MISO, SCK, CS, DC, RST, BUSY
Renamed nets to PANEL_MOSI, PANEL_MISO, PANEL_SCLK, PANEL_CS, PANEL_DC, PANEL_BUSY
Documented FPC connector orientation and added layout keepout note: "Maintain 5 mm clearance for high-voltage nets (VGH, VGL, VCOM)"

Success criteria

✅ Waveshare connector replaced with raw FPC connector ✅ High-voltage rails implemented via PMIC ✅ SPI (with series damping) and control signals correctly rewired ✅ ERC passes and BOM placeholders integrated

Next step Prepare PCB layout: review footprints, set up stackup, place components, and run Auto-Layout for routing.

89 days

Plan completed.

Show Plan

J1 GPIO 17 - J2 6

J1 GPIO3 (I2C1 SCL) - U2 SCLK/SCL

J1 GPIO 17 - J2 6

C2 P1 - U1 VI

C3 P2 - L1 P2

J1 GPIO 20 (PCM Data-In) - U4 SD

J1 GPIO 19 (PCM Frame Sync) - U4 WS

R6 P2 - U4 CLOCK

J1 GPIO 10 (SPI0 MOSI) - J2 1

J1 GPIO 8 (SPI Chip Select 0) - J2 4

J1 GPIO 20 (PCM Data-In) - U4 SD

J1 GPIO 9 (SPI0 MISO) - J2 2

J1 GPIO 11 (SPI0 SCLK) - J2 8

J1 GPIO 20 (PCM Data-In) - U4 SD

J1 GPIO 17 - J2 6

R7 P2 - U4 CLOCK

J1 GPIO 17 - J2 6

J1 GPIO 9 (SPI0 MISO) - J2 2

R6 P2 - U4 CLOCK

J1 GPIO 8 (SPI Chip Select 0) - J2 4

J1 GPIO3 (I2C1 SCL) - U2 SCLK/SCL

J1 GPIO 17 - J2 6

U1 VOUT - J1 5V PWR

J1 3v3 - C4 P1

J1 GPIO 19 (PCM Frame Sync) - U4 WS

J1 GPIO 11 (SPI0 SCLK) - J2 3

J1 GPIO2 (I2C1 SDA) - U2 MISO/SDA

J1 GPIO 17 - J2 6

R6 P2 - U4 CLOCK

J1 3v3 - C4 P1

J1 GPIO 17 - J2 6

U1 VOUT - J1 5V PWR

J1 GPIO 17 - J2 6

J1 GPIO 11 (SPI0 SCLK) - J2 3

J1 GPIO 11 (SPI0 SCLK) - J2 8

J1 GPIO 18 (PCM Clock) - U4 SCK

J1 GPIO 17 - J2 6

J1 3v3 - C4 P1

R6 P2 - U4 CLOCK

J1 GPIO 20 (PCM Data-In) - U4 SD

J1 GPIO 18 (PCM Clock) - U4 SCK

J1 GPIO2 (I2C1 SDA) - U2 MISO/SDA

J1 GPIO 11 (SPI0 SCLK) - J2 3

J1 GPIO 10 (SPI0 MOSI) - J2 1

R7 P2 - U4 CLOCK

J1 GPIO 17 - J2 6

J1 GPIO 20 (PCM Data-In) - U4 SD

U1 VOUT - J1 5V PWR

J1 GPIO 17 - J2 6

J1 GPIO 20 (PCM Data-In) - U4 SD

C16

Capacitance

C20

Capacitance

C18

Capacitance

TP_MOSI

GND

MK1

C15

Capacitance

C13

Capacitance

Hole4

C11

Capacitance

Hole3

TP_MISO

C18

Capacitance

C19

Capacitance

Hole2

C17

Capacitance

TP_SCK

C17

Capacitance

100nF

C14

Capacitance

Hole1

C21

Capacitance

100nF

C12

Capacitance

C10

Capacitance

MK2

C19

Capacitance

Not Recommended for New Designs

Reviews

Electrical Rule Checks

Duplicate Designators • 10

	Components
	C20, C20
	C18, C18, C18
	R9, R9
	R10, R10
	J2, J2
	U6, U6
	C19, C19, C19
	C17, C17, C17
	R11, R11, R11
	C21, C21

No-Connect Violation

Reports no-connect pins that are connected.

Missing Power • 2

	Component
	ST25R3918-AQWT U2
	TPS65185RSLR U6

Single Pin Nets

Reports nets that have only one pin connected.

Missing Designator

Reports components without a designator.

Design Rule Checks

Overlapping Copper • 49

Des	Net	Des	Net
Trace 4bc5	BATTERY_FILTER	SW1:2	None
Trace 4fba	BATTERY_FILTER	J2:SHIELD__1	None
Trace 4fba	BATTERY_FILTER	SW1:P1	None
Trace 1171	BATTERY_FILTER	J2:9	None
Trace a682	BATTERY_FILTER	J2:9	None
C2:P2	GND	Trace 4803	BATTERY_FILTER
C2:P2	GND	Trace fe43	BATTERY_FILTER
C14:P2	GND	Trace d3ee	PDM_DAT
J1:GROUND	GND	Trace 82cd	VCOM
Trace 3ea5	MISO	TP_I2S_CLK:TP	PDM_CLK
Trace 09a1	MISO	TP_I2S_CLK:TP	PDM_CLK
J1:GPIO 19 (PCM Frame Sync)	PANEL_DC	Trace 2f6b	PDM_CLK
Trace 3b07	PANEL_DC	U6:PGND1	None
Trace 3b07	PANEL_DC	U6:VB	None
Trace 3b07	PANEL_DC	U6:VB_SW	None
Trace 05f1	PANEL_DC	J1:GPIO 16	None
Trace 05f1	PANEL_DC	J1:GPIO 26	None
Trace 7568	PANEL_DC	U6:VN	None
Trace 7568	PANEL_DC	U6:VN_SW	None
Trace a5cc	PANEL_DC	U6:c2c9066b	None
Trace a5cc	PANEL_DC	U6:EP	None
Trace 78c2	PDM_DAT	C14:P2	GND
Trace 3170	PDM_DAT	C21:P1	None
Trace 145e	VGL	J1:GPIO 22	GND
Trace 145e	VGL	J1:GROUND	None
C18:P2	None	C14:P1	GND
C18:P2	None	Trace d3ee	PDM_DAT
C20:P1	None	Trace 3b07	PANEL_DC
J1:GPIO 0 (HAT EEPROM i2c Data)	None	Trace fdfc	MISO
J1:GPIO 1 (HAT EEPROM i2c Clock)	None	Trace fdfc	MISO
J1:GPIO 5	None	Trace 82cd	VCOM
J1:GPIO 7 (SPI Chip Select 1)	None	Trace e6df	MOSI
J1:GPIO 10 (SPI0 MOSI)	None	TP_DC:TP	GND
J1:GPIO 13 (PWM1)	None	Trace 78c2	PDM_DAT
J1:GPIO 13 (PWM1)	None	Trace c9d9	PDM_DAT
J1:GPIO 26	None	Trace 5a66	PANEL_DC
J1:GPIO 26	None	Trace fe03	PANEL_DC
J1:Ground	None	Trace e6df	MOSI
J1:GROUND	None	Trace 2f6b	PDM_CLK
J1:GROUND	None	Trace 27dd	PDM_CLK
J1:GROUND	None	Trace 78c2	PDM_DAT
J2:SHIELD__1	None	Trace d5f4	5V
R3:P2	None	Trace e6df	MOSI
SW1:2	None	Trace b84b	BATTERY_FILTER
SW1:2	None	Trace eba4	BATTERY_FILTER
SW1:2	None	Trace fe43	BATTERY_FILTER
U6:EP	None	Trace e08d	PANEL_DC
U6:VB	None	Trace e08d	PANEL_DC
U6:VDDH_FB	None	U6:VIN	5V

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides

Reports components that have been modified using the "!important" flag.

Airwires • 56

	Designators	Net
	C3:P1, U1:VOUT	5V
	J1:5V PWR, U1:VOUT	5V
	U6:VIN, C3:P1	5V
	D1:Anode, BAT1:+	BATTERY
	C2:P1, C1:P1	BATTERY_FILTER
	C2:P1, D1:Cathode	BATTERY_FILTER
	L1:P1, C1:P1	BATTERY_FILTER
	L1:P1, U1:VI	BATTERY_FILTER
	BAT1:-, TP_BUSY:TP	GND
	C1:P2, C4:P1	GND
	C2:P2, U3:A0	GND
	C3:P2, L1:P2	GND
	C4:P1, C4:P2	GND
	C4:P2, C5:P1	GND
	C5:P1, C5:P2	GND
	C6:P1, C6:P2	GND
	C6:P1, SW1:P2	GND
	C6:P2, C5:P1	GND
	C7:P1, C2:P2	GND
	C7:P1, C7:P2	GND
	C8:P1, C1:P2	GND
	C9:P2, C15:P1	GND
	C15:P1, C15:P2	GND
	J1:GPIO2 (I2C1 SDA), R11:P2	GND
	R2:P1, SW1:P2	GND
	R4:P2, R4:P1	GND
	R4:P2, R11:P2	GND
	TP_BUSY:TP, R11:P2	GND
	TP_BUSY:TP, TP_SDA:TP	GND
	TP_DC:TP, TP_RST:TP	GND
	U2:SCLK/SCL, U2:MISO/SDA	GND
	U2:VDD_IO, U2:MISO/SDA	GND
	U2:VDD_IO, U2:VDD	GND
	U2:VDD, SW1:P2	GND
	U3:A0, U3:A1	GND
	U3:A2, C5:P2	GND
	U3:A2, U3:A1	GND
	U3:SCL, U3:A2	GND
	U3:SCL, U3:WP	GND
	U3:SDA, U3:SCL	GND
	U6:VIN3P3, U6:V3P3	GND
	U6:VIN3P3, U6:VPOS	GND
	Via-Island-3:Via-Island-3, SW2:P2	GND
	Via-Island-12:Via-Island-12, U4:SELECT	GND
	TP_SCK:TP, U6:VCOM	Net 1
	J1:GPIO 18 (PCM Clock), R7:P1	PDM_CLK
	R6:P1, R7:P1	PDM_CLK
	R6:P2, TP_I2S_CLK:TP	PDM_CLK
	U5:CLOCK, TP_I2S_CLK:TP	PDM_CLK
	U4:CLOCK, R7:P2	PDM_CLK_L
	U4:DATA, TP_I2S_SD:TP	PDM_DAT
	U5:DATA, J1:GPIO 20 (PCM Data-In)	PDM_DAT
	U5:DATA, U4:DATA	PDM_DAT
	J1:GPIO 11 (SPI0 SCLK), R9:P2	VCOM
	R9:P2, R9:P1	VCOM
	TP_CS:TP, U6:VNEG	VGL

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper • 11

	Name
	Trace 0323, Trace 6193, Trace df98, Trace ced7, Trace 2e4b
	Trace 2f6b, Trace a715
	Trace 4522, Trace a6c6, Trace b33b, Trace 6d48
	Trace 477b, Trace 9469, Trace ea91
	Trace 5c4c
	Trace 012a, Trace 06a1, Trace b923, Trace e5a4, Trace ccd2, Trace 0bcb, Trace 25e6
	Trace 0ac8, Trace ac8e, Trace 8b12, Trace 535b
	Trace 4198, Trace 59ad, Trace d91d, Trace effb
	Trace 118e, Trace 570e, Through-hole - 1, Trace 145e
	Trace 6466, Through-hole - 1, Trace 869d, Trace 9041
	Trace 2aab, Trace 3105, Through-hole - 1, Trace fcb4

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Missing Footprints

Reports components that need a footprint but don't have one.

Manufacturing

Manufacturer Part Number • 50

	Designator	MPN
	C1	None
	C2	None
	C3	None
	C4	None
	C5	None
	C6	None
	C7	None
	C8	None
	C9	None
	C10	None
	C11	None
	C12	None
	C13	None
	C14	None
	C15	None
	C16	None
	C17	None
	C17	None
	C17	None
	C18	None
	C18	None
	C18	None
	C19	None
	C19	None
	C19	None
	C20	None
	C20	None
	C21	None
	C21	None
	Hole1	None
	Hole2	None
	Hole3	None
	Hole4	None
	J1	None
	L1	None
	R1	None
	R2	None
	R3	None
	R4	None
	R5	None
	R6	None
	R7	None
	R8	None
	R9	None
	R9	None
	R10	None
	R10	None
	R11	None
	R11	None
	R11	None

Parts Available

Beta

Checks that all components are available from distributors.

System Checks

Auto-Layout

Beta

Reports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.

Passive Components

Resistor Power Rating

Beta

Checks that the power traveling across a given resistor is under its rating with 50% headroom.

Learn more

Pull Up/Pull Down Presence

Beta

Checks that IC pins that require pull up or pull down resistors have them.

Learn more

Capacitor Voltage Rating

Beta

Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.1k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Inspect

Particular Blue KITT

Controls

Properties

Layout Note

Maintain 40–60 mm spacing between the two microphones for optimal beamforming.

System Architecture

graph LR Pi[Pi Zero 2 W 40-pin header] MIC_L[Left PDM MEMS Microphone] MIC_R[Right PDM MEMS Microphone] EInk[2.9" E-Ink Display] NFC[NFC Tag IC] EEPROM[HAT ID EEPROM] Batt[AA Battery Pack] Boost[5V Boost Converter] SW_R[Reed Switch] SW_T1[Tactile Switch 1] SW_T2[Tactile Switch 2] Ant[13.56 MHz PCB Loop Antenna] Pi -- MOSI --> EInk Pi -- MISO --> EInk Pi -- SCK --> EInk Pi -- CS --> EInk Pi -- DC --> EInk Pi -- RST --> EInk Pi -- BUSY --> EInk Pi -- PDM_CLK --> MIC_L Pi -- PDM_CLK --> MIC_R Pi -- PDM_DAT --> MIC_L Pi -- PDM_DAT --> MIC_R Pi -- SDA --> NFC Pi -- SCL --> NFC Pi -- SDA --> EEPROM Pi -- SCL --> EEPROM Batt --> Boost --> Pi Pi -- GND --> GND Pi -- GPIO_R --> SW_R Pi -- GPIO_T1 --> SW_T1 Pi -- GPIO_T2 --> SW_T2 NFC -. Antenna .-> Ant

ERC_Results

[{"type":"erc_missing_power_pin_connection","data":{"designator":"U2","pin":7,"description":"Unconnected power pin (U2, pin 7: VDD_A)"}},{"type":"erc_missing_power_pin_connection","data":{"designator":"U2","pin":8,"description":"Unconnected power pin (U2, pin 8: VDD)"}},{"type":"erc_missing_power_pin_connection","data":{"designator":"U2","pin":9,"description":"Unconnected power pin (U2, pin 9: VDD_RF)"}},{"type":"erc_missing_power_pin_connection","data":{"designator":"U2","pin":10,"description":"Unconnected power pin (U2, pin 10: VDD_TX)"}},{"type":"erc_missing_power_pin_connection","data":{"designator":"U2","pin":11,"description":"Unconnected power pin (U2, pin 11: VDD_AM)"}},{"type":"erc_missing_power_pin_connection","data":{"designator":"U2","pin":14,"description":"Unconnected power pin (U2, pin 14: VDD_DR)"}}]

FPC Connector Orientation

Pin 1 (Gx) nearest PCB edge, orientation per panel datasheet

Trace Keepout - VGH, VGL, VCOM

Maintain 5 mm clearance around VGH, VGL, and VCOM nets mm

Microphone Spacing

40–60 mm

Availability & Pricing

Distributor		Qty 1
	Arrow	$10.10–$13.18
	Digi-Key	$12.56–$15.54
	LCSC	$37.89–$38.00
	Mouser	$26.26–$26.32
	TME	$0.07
	Verical	$11.31–$17.75

Assets

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