USB-C BLE Dongle Design Assistance

rintoj

Thought for 40 sec

flux

Hi! How can I help with your USB‑C BLE dongle project today?

Options I can take care of:

Review ERC/DRC and highlight fixes
Check part availability/cost and suggest substitutions
Improve USB‑C/ESD/power input protection
Tidy schematic nets and designators
Prep for production: BOM sanity and manufacturability review

What would you like to tackle first?

Review ERC/DRC

Add surge protection

ESD diode capacitance

BLE module selection

BOM manufacturability

GND

GND2

GND

ESP_RX

GPIO36

ESP_RX

CC1

ESP_TX

GPIO18

+5V

J6 CC2 - R32 P1

USBDP

J6 DN2 - D6 1

USBDN

GPIO15

GPIO14

ESP_TX

GPIO21

USBDP

GPIO34

USBDP

GPIO25

CC2

GPIO27

ESP_IO0

LED1 K - R34 P1

GPIO25

USBDN

J6 CC1 - R31 P1

ESP_IO0

GPIO22

GPIO16

+3V3

VBUS

GPIO5

ESP_IO0

CC1

USBDP

GPIO13

GPIO17

GPIO12

J6 DN2 - D6 1

LED1 K - R34 P1

+5V

GPIO35

GPIO16

GPIO18

GPIO33

GPIO12

J6 CC2 - R32 P1

USBDN

ESP_RX

GPIO33

GPIO19

GPIO4

GPIO36

GPIO32

GPIO15

USBDN

VBUS

ESP_EN

J6 DP2 - D5 1

USBDP

GPIO2

+3V3

GPIO26

GPIO13

J6 DN2 - D6 1

GPIO22

CC2

GPIO2

GPIO4

J6 CC1 - R31 P1

GPIO39

GPIO26

ESP_EN

GPIO19

GPIO2

GPIO39

+3V3

USBDN

ESP_IO0

GPIO32

ESP_EN

GPIO14

GPIO21

ESP_TX

USBDP

ESP_EN

GPIO23

J6 DP2 - D5 1

ESP_IO0

GPIO5

GPIO27

ESP_EN

GPIO17

USBDP

J6 DP2 - D5 1

GPIO35

C28

Capacitance

0.1uF

C40

Capacitance

0.1 uF

C15

Capacitance

0.1uF

C39

Capacitance

0.1 uF

C17

Capacitance

0.1uF

C16

Capacitance

0.1uF

C36

Capacitance

0.1 uF

C43

Capacitance

0.1 uF

C14

Capacitance

0.1uF

C37

Capacitance

0.1 uF

C41

Capacitance

0.1 uF

C38

Capacitance

0.1 uF

C26

Capacitance

0.1uF

C44

Capacitance

0.1 uF

C27

Capacitance

0.1uF

C29

Capacitance

0.1uF

Capacitance

10uF

+3V3

Capacitance

10uF

VBUS

C20

Capacitance

C11

Capacitance

0.1uF

+3V3

C34

Capacitance

10uF

C32

Capacitance

+5V

C33

Capacitance

+3V3

Capacitance

0.1uF

Capacitance

0.1uF

C35

Capacitance

+5V

C10

Capacitance

0.1uF

C23

Capacitance

+3V3

Capacitance

0.1uF

Capacitance

0.1uF

VBUS

+5V

C22

Capacitance

+3V3

C21

Capacitance

+3V3

R23

Resistance

10kΩ

R16

Resistance

5.1kΩ

Resistance

1kΩ

R27

Resistance

5.1kΩ

R25

Resistance

R24

Resistance

R28

Resistance

R26

Resistance

R15

Resistance

R13

Resistance

R11

Resistance

R14

Resistance

R12

Resistance

R17

Resistance

C25

Capacitance

10uF

R19

Resistance

R20

Resistance

C12

Capacitance

10uF

Resistance

R18

Resistance

R21

Resistance

R10

Resistance

C13

Capacitance

10uF

R22

Resistance

C24

Capacitance

10uF

Resistance

U11

TP11

TP7

U12

C44

Capacitance

R35

Resistance

500 Ω

R31

Resistance

500 Ω

TP3

R31

Resistance

500 Ω

TP10

R32

Resistance

500 Ω

TP12

C43

Capacitance

R36

Resistance

500 Ω

TP9

R34

Resistance

500 Ω

TP6

TP2

TP5

TP1

TP8

R33

Resistance

500 Ω

U14

U13

R37

Resistance

500 Ω

R32

Resistance

500 Ω

C42

Capacitance

TP4

U101

Inductance

4.7uH

PWR

Capacitance

10uF

Inductance

4.7uH

C30

Capacitance

10uF

LED1

C19

Capacitance

C31

Capacitance

C18

Capacitance

USB1

RST

R37

J_PWR

R36

R35

BOOT

R33

R34

D_TVS

R30

Resistance

0 Ω

IC2

IC1

R29

Resistance

0 Ω

L_PWR

Inductance

4.7 uH

D_SCHOT

Reviews

Generic Inductor
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
jharwinbarrozo
16.4k
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, 10000uF 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, 220pF, 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 Resistor
A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
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
RMCF0805JT47K0
General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliant
jharwinbarrozo
1.2M
875105359001
10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
jharwinbarrozo
1.1M
1070TR
Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
jharwinbarrozo
700.5k
Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius

Project Name

ESP32-WROOM-32E Reference Design 3jT2

Description

Bus-Powered USB-C BLE Dongle –

Manufacturability Cleanup and Production Readiness

Layout Rules

Dimension Unit

Enabled

Yes

Grid Spacing

10mm

Layer

Top

Rotation Unit

deg

Properties

System Ar…itecture

flowchart LR HostUSB[Host USB Port] --> CC[CC Resistors/ESD Protection] CC --> PTC[PTC Fuse] PTC --> LDO[LDO 3.3V Regulator] LDO --> V33[3.3V Rail] V33 --> BLE[BLE Module] V33 --> USBIF[USB Interface]

License

creativecommons.org/licenses/by/4.0/

Pricing & Availability

Distributor	Qty 1

Controls

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