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ESP32 boardV1
robertxdx/ESP32S3PD15WA 15 W USB-C powered ESP32-S3 LED-strip controller and development board.
- Size
- 60 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 57
- Pads
- 187
- Tracks, vias
- 346, 123
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 31 May 2026
- Updated
- 31 May 2026
Overview
ESP32 boardV1 is an open-source printed circuit board by robertxdx, from the robertxdx/ESP32S3PD15W repository on GitHub. It is a 4-layer board of 60 × 50 mm with 46 parts on 57 nets, routed with 346 tracks and 123 vias.
It is built around the SN74HC125PWR-TP, ESP32-S3-WROOM-1-N4 and AP63203WU, with the USBLC6-2P6, 0402F104M500NT and PTS636SK25SMTRLFS among its other parts. Its parts include 14 capacitors, 8 resistors, 5 diodes, 5 connectors and 5 switches. It belongs with the microcontroller boards boards and the ESP32 boards of this library.
Main components
12
SN74HC125PWR-TP
TSSOP-14-40℃~+125℃ 1 2V~6V 40uA 50mA 50mA 74HC Schmitt trigger Tri-State Unidirectional TSSOP-14 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, Transceivers
ESP32-S3-WROOM-1-N4
SMD,25.5x18mm-103.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AP63203WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.3V 3.8V~32V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
0402F104M500NT
0402100nF 50V Y5V ±20% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSGuangdong Fenghua Advanced Tech (FH)Multilayer Ceramic Capacitors MLCC - SMD/SMT
PTS636SK25SMTRLFS
SMD,6x3.5mm-40℃~+90℃ 12V 2.5N 3.7mm 50mA 6.1mm Gull Wing IP40 No Rectangular Button SPST-NO Surface Mount,Vertical SMD,6x3.5mm Tactile Switches ROHSC&KTactile Switches
CL31A226KAHNNNE
120622uF 25V X5R ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
SRP4020TA-4R7M
SMD,4.5x4.1mm2.6A 3.5A 4.7uH 95mΩ ±20% SMD,4.5x4.1mm Power Inductors ROHSBournsPower Inductors
KT-0603B
0603100mW 120° 175mcd 3.1V 460nm~475nm 469nm 5mA Blue Discrete Diode Water Clear 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - DiscreteKT-0603R
0603-40℃~+85℃ 1.6mm x 0.8mm square LED 1.8V~2.4V 120° 20mA 300mcd 40mW 615nm~630nm 645nm Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB ConnectorsKT-0603Y
0603-40℃~+85℃ 120° 175mcd 2.4V 40mW 584nm~594nm 596nm Discrete Diode Water Clear Yellow 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
README
README.mdESP32S3PD15W
A 15 W USB-C powered ESP32-S3 LED-strip controller and development board.
ESP32S3PD15W is a compact ESP32-S3-WROOM-1 board built to drive a 144-LED WS2812B strip while still behaving like a practical development platform. It prioritizes power delivery over the usual low-current dev-board formula: USB-C input, an efficient buck converter, level-shifted 5 V data outputs, and accessible GPIO for experiments.
Why This Board Exists
Most ESP32 development boards are convenient for firmware work but awkward when the project needs real 5 V power for addressable LEDs. This board is designed around that use case:
- Drive WS2812B LED strips from a board-level 5 V power path.
- Use USB-C as the main input, with CC resistors configured for high-current 5 V sources.
- Convert 5 V to 3.3 V efficiently with a buck regulator instead of burning power in an LDO.
- Expose both native 3.3 V GPIO and 5 V level-shifted outputs for LED/data interfaces.
- Keep boot, reset, status LEDs, UART, and general-purpose controls available for development.
Hardware At A Glance
| Area | Details |
|---|---|
| MCU | ESP32-S3-WROOM-1 module |
| Power input | USB-C, designed for up to 5 V / 3 A sources |
| Power output focus | Up to 15 W available for LED-strip use |
| 3.3 V rail | AP63203 buck converter |
| LED/data outputs | 4x 5 V level-shifted GPIO via 74AHCT125 |
| Native GPIO | 7x exposed 3.3 V GPIO |
| USB protection | USBLC6-2P6 ESD protection |
| User controls | Boot, reset, and general-purpose buttons |
| Status indicators | Multiple onboard LEDs |
Schematic Preview
Main Control And Power Sheet
Board Layout Sheet
BOM Sheet
Project Files
| Path | Purpose |
|---|---|
ESP32_boardV1/ESP32_boardV1.kicad_pro | KiCad project |
ESP32_boardV1/ESP32_boardV1.kicad_sch | Main schematic |
ESP32_boardV1/ESP32_boardV1.kicad_pcb | PCB layout |
ESP32_boardV1/production/ | BOM, position files, IPC netlist, and fabrication package |
Design documentation/ | Design notes and diagrams |
docs/images/ | README-ready board and schematic imagery |
Manufacturing Outputs
The production folder contains generated assembly and fabrication collateral, including:
- BOM CSV
- Position CSV
- Designator export
- IPC netlist
- Packaged production ZIP
Review the KiCad files and production outputs before ordering boards, especially if component footprints or USB-C power assumptions change.
Design Notes
- The board name expands to ESP32-S3 Power Delivery 15 W.
- The 5 V logic outputs are intended for WS2812B-style data inputs.
- The buck converter is used to reduce heat and preserve more of the available input power for LEDs.
- USB-C high-current behavior depends on the capabilities of the source and cable used.
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100n | Capacitor_SMD:C_0603_1608Metric | C3, C6, C7, C8, C9, C10, C13, C14, C15 |
| 5 | 510R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R6, R7, R8 |
| 5 | SW_Push | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1, SW2, SW3, SW4, SW5 |
| 4 | 22u | Inductor_SMD:L_1206_3216Metric_Pad1.22x1.90mm_HandSolder | C2, C5, C11, C12 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2, J6 |
| 2 | GREEN | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 2200u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C4 |
| 1 | 4.7uH | Inductor_SMD:IND_SRP4020TA-1R0M_BRN | L1 |
| 1 | 74AHCT125 | Package_SO:SSOP-14_5.3x6.2mm_P0.65mm | U4 |
| 1 | AP63203WU | Package_TO_SOT_SMD:TSOT-23-6 | U3 |
| 1 | BLUE | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4 |
| 1 | Conn_01x07 | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J3 |
| 1 | ESP32-S3-WROOM-1 | PCM_Espressif:ESP32-S3-WROOM-1 | U1 |
| 1 | LED Strip | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J5 |
| 1 | RED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D5 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | YEL | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
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Questions
How big is the ESP32 boardV1 PCB?
It measures 60 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ESP32 boardV1 use?
46 parts, built around the SN74HC125PWR-TP, ESP32-S3-WROOM-1-N4, AP63203WU and USBLC6-2P6. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ESP32 boardV1 KiCad files?
From the robertxdx/ESP32S3PD15W repository on GitHub, at the commit this page was made from: the board is ESP32_boardV1/ESP32_boardV1.kicad_pcb and its schematic ESP32_boardV1/Board_layout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 boardV1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask robertxdx before reusing the design.