USB-C BLE Dongle Design Assistance

rintoj

rintoj

hi

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
U9
J6
D2
ESP_RX
GPIO36
ESP_RX
CC1
ESP_TX
GPIO18
+5V
J6 CC2 - R32 P1
USBDP
USBDP
J6 DN2 - D6 1
USBDN
GPIO15
GPIO14
ESP_TX
GPIO21
USBDP
GPIO34
GPIO34
USBDP
GPIO25
CC2
GPIO27
ESP_IO0
LED1 K - R34 P1
GPIO25
USBDN
J6 CC1 - R31 P1
ESP_IO0
GPIO22
GPIO16
+3V3
VBUS
GPIO5
GND
ESP_IO0
CC1
USBDP
GPIO13
GPIO17
GPIO12
J6 DN2 - D6 1
LED1 K - R34 P1
+5V
GPIO35
GPIO16
GPIO18
GPIO33
GND
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
GND2
ESP_EN
GPIO19
GPIO2
GPIO39
+3V3
USBDN
ESP_IO0
GPIO32
ESP_EN
GPIO14
GPIO21
ESP_TX
USBDP
GND
ESP_EN
GPIO23
GPIO23
J6 DP2 - D5 1
ESP_IO0
GPIO5
GPIO27
D2
ESP_EN
GPIO17
USBDP
J6 DP2 - D5 1
GPIO35
C28
Capacitance
0.1uF
D3
D1
C4
Capacitance
10uF
C3
Capacitance
10uF
C20
Capacitance
Capacitance
C11
Capacitance
0.1uF
D4
C34
Capacitance
Capacitance
C8
Capacitance
10uF
C32
Capacitance
Capacitance
D4
C40
Capacitance
0.1 uF
C33
Capacitance
Capacitance
C15
Capacitance
0.1uF
C39
Capacitance
0.1 uF
C6
Capacitance
0.1uF
C7
Capacitance
0.1uF
C35
Capacitance
Capacitance
C17
Capacitance
0.1uF
C10
Capacitance
0.1uF
C23
Capacitance
Capacitance
D3
C16
Capacitance
0.1uF
C2
Capacitance
0.1uF
C1
Capacitance
0.1uF
C36
Capacitance
0.1 uF
C43
Capacitance
0.1 uF
C14
Capacitance
0.1uF
C22
Capacitance
Capacitance
C37
Capacitance
0.1 uF
C21
Capacitance
Capacitance
C41
Capacitance
0.1 uF
C38
Capacitance
0.1 uF
C26
Capacitance
0.1uF
C44
Capacitance
0.1 uF
C27
Capacitance
0.1uF
D1
C29
Capacitance
0.1uF
U8
+3V3
R23
Resistance
Resistance
VBUS
R1
Resistance
Resistance
Resistance
10kΩ
+3V3
R16
Resistance
Resistance
+5V
R2
Resistance
Resistance
Resistance
5.1kΩ
+3V3
R4
Resistance
1kΩ
R27
Resistance
Resistance
R3
Resistance
Resistance
Resistance
5.1kΩ
+5V
R25
Resistance
Resistance
R24
Resistance
Resistance
U5
+3V3
R28
Resistance
Resistance
VBUS
R26
Resistance
Resistance
+5V
R15
Resistance
Resistance
R13
Resistance
Resistance
+3V3
+3V3
R11
Resistance
Resistance
R14
Resistance
Resistance
R12
Resistance
Resistance
+3V3
+3V3
U4
R17
Resistance
Resistance
C25
Capacitance
10uF
U11
R19
Resistance
Resistance
U12
R20
Resistance
Resistance
R9
Resistance
Resistance
C12
Capacitance
10uF
R7
Resistance
Resistance
R6
Resistance
Resistance
R8
Resistance
Resistance
R18
Resistance
Resistance
U9
U7
R21
Resistance
Resistance
R10
Resistance
Resistance
C13
Capacitance
10uF
U14
U13
R22
Resistance
Resistance
C24
Capacitance
10uF
R5
Resistance
Resistance
U101
TP11
TP7
F2
C44
Capacitance
Capacitance
U6
R35
Resistance
500 Ω
R31
Resistance
500 Ω
TP3
R31
Resistance
500 Ω
TP10
R32
Resistance
500 Ω
TP12
C43
Capacitance
Capacitance
R36
Resistance
500 Ω
TP9
R34
Resistance
500 Ω
F3
TP6
U3
TP2
F2
TP5
TP1
TP8
R33
Resistance
500 Ω
R37
Resistance
500 Ω
F1
R32
Resistance
500 Ω
F1
C42
Capacitance
Capacitance
TP4
J1
L2
Inductance
4.7uH
PWR
C9
Capacitance
10uF
USB1
J2
L1
Inductance
4.7uH
C30
Capacitance
Capacitance
C5
Capacitance
10uF
LED1
C19
Capacitance
Capacitance
C31
Capacitance
Capacitance
C18
Capacitance
Capacitance
J3
RST
Q1
R37
J_PWR
R36
U2
R35
D_TVS
J4
D6
D5
BOOT
Q2
R33
R34
R30
Resistance
0 Ω
IC2
U1
J5
IC1
R29
Resistance
0 Ω
L_PWR
Inductance
4.7 uH
D_SCHOT

To get started, talk to Flux or create a New Document.

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    ESP32-WROOM-32E Reference Design-removebg-preview.png

    ESP32-WROOM-32E Reference Design-removebg-preview.png

    ESP32-WROOM-32E Reference Design-removebg-previewThumbnail

    ESP32-WROOM-32E Reference Design 3jT2

    ESP32-WROOM-32E Reference Design 3jT2 thumbnail
    Bus-Powered USB-C BLE Dongle –
    Manufacturability Cleanup and Production Readiness

    Properties

    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]

    creativecommons.org/licenses/by/4.0/

    Pricing & Availability

    Distributor

    Qty 1

    Controls