ESP32S3 Schematic Design

flux

  • Set U1's Operating Voltage to "3.3"
  • Set U2's Operating Voltage to "3.3"
  • Set U2's Role Details to "Mono I2S DAC/AMP, VDD = 3.3V"
  • Set U3's Operating Voltage to "3.3"
  • Set U4's Operating Voltage to "3.3"
  • Set U6's Output Voltage to "3.3"
  • Set U6's Operating Voltage to "3.3"
  • Set U7's Output Voltage to "5"
  • Set U7's Operating Voltage to "5"
  • Set U8's Input Voltage to "5"
  • Set U8's Charge Voltage to "4.2"
  • Set U8's Role Details to "TP4056 LiPo charger module with onboard protection; USB VBUS input -> BAT output"
  • Set U9's Output Voltage to "3.3"
  • Set U9's Operating Voltage to "3.3"
  • Set U9's Role Details to "3.3V LDO for ESP32-S3 and peripherals; input from BAT/TP4056 output"
  • Set J2's Voltage to "5"
  • Set J2's Role Details to "USB-C VBUS and data connector for programming/debug"
  • Set J5's Role Details to "1S LiPo battery connector (JST PH series)"
  • Set L1's Current Rating to "1"
  • Set MK1's Operating Voltage to "3.3"

Verified all component footprints

1:01

Started: Verify footprints for all components and update generic passive package sizes as needed.

Selected single-sided, standard stackup

1:00

Started: Select a single-sided, standard stackup.

Set board dimensions

0:57

Started: Set the board dimensions to 45 mm × 12 mm.

Configured top copper ground fill

1:16

Started: Configure copper layers (top copper only) and apply ground fill on the top layer.

Defined RF keep-out region

1:05

Started: Define the RF keep-out region or place the u.FL footprint zone.

Set board dimensions to 45×12 mm

1:49

Started: Pause for user review of board size, RF keep-out, and mounting/test-pad strategy.

flux

  • Disconnected IC1:PGND

Defined RF keep-out region

1:14

Started: Classify all nets by type and update net properties accordingly.

Setting appropriate trace widths for power nets...

0:37

Started: Set appropriate trace widths for power nets based on peak current requirements.

Setting +5V power net width...

0:41

Started: Set appropriate trace width for the +5V power net based on its peak current requirements.

Worked

0:24

U1
I need to break down this circuit diagram into functional blocks. Please analyze...
1
C6
Capacitance
10uF
R7
Resistance
4.7kΩ
UART_TXD0
IO48
VL53L0X_IRQ
IO1
R10
Resistance
500 Ω
ESP_EN
TCK
TDO
C3
Capacitance
0.1uF
IO15
IO36
IO37
IO0
TCK
IO4
3V3
IO13
I2C_SCL
IO7
IO9
TDI
TMS
IO21
UART_RXD0
IO8
IO1
IO46
3V3
TDO
IO10
UART_TXD0
IO3
IO38
IO16
C5
Capacitance
10uF
IO2
VL53L0X_IRQ
UART_RXD0
IO17
USB_D-
TDI
IO4
TMS
3V3
IO3
IO12
IO12
R8
Resistance
4.7kΩ
IO36
C7 P1 - U2 VDD_1
IO10
IO15
IO14
IO7
IO6
IO0
3V3
IO13
USB_D-
IO5
IO14
R9
Resistance
500 Ω
USB_D+
IO47
IO8
IO35
IO21
IO21
C1
Capacitance
0.1uF
IO2
IO5
IO45
IO1
C2
Capacitance
10uF
USB_D+
I2S_SDOUT1_RESERVE
3V3
IO6
3V3
3V3
U3
R1
Resistance
100kΩ
R2
Resistance
5.1KΩ
3V3
+5V
+5V
+5V
+5V
3V3
3V3
R5
Resistance
220 Ω
R4
Resistance
220 Ω
R6
Resistance
220 Ω
3V3
3V3
J3
U7
D1
D2
J1
LED1
LED2
LED3
  • Generic Inductor
    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
    16.5k
  • Generic Capacitor
    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
    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
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • Net Portal
    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
    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
    875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
    jharwinbarrozo
    700.5k

ESP32-S3-WROOM-1 Reference Design aLf8

ESP32-S3-WROOM-1 Reference Design aLf8 thumbnail
Compact ESP32-S3 Smart Glasses Starter PCB with OV2640 Camera, I2C Mux, I2S Audio, LiPo Charging, and USB-C Debug Interface

Properties

graph TD USB_TYPEC((USB-C Connector)) -->|VBUS| REG_5V3V((3.3V Regulator)) -->|3.3V| ESP32[ESP32-S3-WROOM-1] REG_5V3V -->|3.3V| MAX98357A[MAX98357A I2S DAC/AMP] REG_5V3V -->|3.3V| TCA9548A[TCA9548APWR I2C Mux] ESP32 -->|I2S| MAX98357A ESP32 -->|I2C| TCA9548A TCA9548A -->|I2C Channels| CAMERA_OV2640_OVS[OV2640 Camera via FPC] ESP32 -->|DVP: D0-D7, PCLK, HSYNC, VSYNC, XCLK| CAMERA_OV2640_OVS CAMERA_OV2640_OVS -- FPC --> FPC24_Connector((24-pin FPC Connector)) subgraph Power USB_TYPEC REG_5V3V end subgraph Connectors USB_TYPEC FPC24_Connector PROG_DEBUG(Programming/Debug Header) end ESP32 -- PROG/DEBUG --> PROG_DEBUG

graph TD USB_TYPEC((USB-C Connector)) -->|VBUS| REG_5V3V((3.3V Regulator)) -->|3.3V| ESP32[ESP32-S3-WROOM-1] REG_5V3V -->|3.3V| MAX98357A[MAX98357A I2S DAC/AMP] REG_5V3V -->|3.3V| TCA9548A[TCA9548APWR I2C Mux] ESP32 -->|I2S| MAX98357A ESP32 -->|I2C| TCA9548A TCA9548A -->|I2C Channels| CAMERA_OV2640_OVS[OV2640 Camera via FPC] ESP32 -->|DVP: D0-D7, PCLK, HSYNC, VSYNC, XCLK| CAMERA_OV2640_OVS CAMERA_OV2640_OVS -- FPC --> FPC24_Connector((24-pin FPC Connector)) subgraph Power USB_TYPEC REG_5V3V end subgraph Connectors USB_TYPEC FPC24_Connector PROG_DEBUG(Programming/Debug Header) end ESP32 -- PROG/DEBUG --> PROG_DEBUG

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