2 layers160 × 100 mm Walle E ESP32 S3 Node v2, the printed circuit board in 3D

Walle E ESP32 S3 Node v2

Purifier control quick save on github

Size: 160 × 100 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 50
Nets: 63
Pads: 240
Tracks, vias: 385, 25
Pours: 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 14 May 2026
Updated: 21 Aug 2026

Overview

Walle E ESP32 S3 Node v2 is an open-source printed circuit board by andaniuwu, from the andaniuwu/purifier-control repository on GitHub. It is a 2-layer board of 160 × 100 mm with 50 parts on 63 nets, routed with 385 tracks and 25 vias.

It is built around the RAC05-05SK. Its parts include 16 resistors, 13 connectors, 9 capacitors, 4 ICs and 2 diodes. It belongs with the ESP32 boards of this library.

Main components

RAC05-05SK
DIP-3AC-DC Power ModulesRECOM Power

Parts

Qty	Value	Footprint	References
8	0R	Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal	R9, R10, R11, R12, R14, R15, R16, R17
6	820R	Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal	R1, R2, R3, R4, R7, R8
4	MountingHole_3.2mm_M3	MountingHole:MountingHole_3.2mm_M3	Hole 1, Hole 2, Hole 3, Hole 4
3	0.1u	Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm	C7, C8, C9
3	47n	Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm	C1, C2, C4
2	1KR	Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal	R13, R18
2	1n	Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm	C5, C10
2	ACS712	ACS712:SO08	U3, U4
2	Conn_01x08_Pin	Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical	J12, J13
2	Conn_01x22_Pin	Connector_PinHeader_2.54mm:PinHeader_1x22_P2.54mm_Vertical	J10, J11
2	LED	LED_THT:LED_D3.0mm	D1, D2
2	Screw_Terminal_01x08	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-8-2.54_1x08_P2.54mm_Horizontal	J7, J8
1	+5VdcSupply	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal	J6
1	127VAC_input	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal	J9
1	22u	Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm	C6
1	Conn_01x04_Pin	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J5
1	CurrentSens01_ACS712_5A	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal	J2
1	CurrentSens03_ACS712_5A	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal	J4
1	Diff_Pressure_Sens LWLP5000	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-3-4-5.08_1x04_P5.08mm_Horizontal	J14
1	ESP32-S3-DEVKITC-1-N16R8V	ESP32-S3-DEVKITC-1-N16R8V footprint:XCVR_ESP32-S3-DEVKITC-1-N16R8V	U1
1	RA-02_LORA	RA-02_LORA footprint:MODULE_RA-02_LORA	U2
1	RAC05-05SK	RAC05-05SK_schematic:CONV_RAC05-05SK	PS2
1	RAC05-05SK_277_W	RAC05-05SK_277_W:CONV_RAC05-05SK_277_W	PS1
1	Voltage01_ZMPT101B	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal	J1

Questions

How big is the Walle E ESP32 S3 Node v2 PCB?

It measures 160 × 100 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Walle E ESP32 S3 Node v2 use?

50 parts, built around the RAC05-05SK. 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 Walle E ESP32 S3 Node v2 KiCad files?

From the andaniuwu/purifier-control repository on GitHub, at the commit this page was made from: the board is hardware/Walle_E_ESP32_S3_Node_v2.kicad_pcb and its schematic hardware/Walle_E_ESP32_S3_Node_v2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Walle E ESP32 S3 Node v2 design in my own project?

Its repository states no licence, so its author keeps all rights: ask andaniuwu before reusing the design.

Category and platform

ESP32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/andaniuwu-purifier-control" title="Walle E ESP32 S3 Node v2 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/andaniuwu-purifier-control.jpg" alt="Walle E ESP32 S3 Node v2" width="1200" height="900">

A picture that opens the board, for a README

[![Walle E ESP32 S3 Node v2](https://pcbkit.io/embed/boards/andaniuwu-purifier-control.jpg?size=s)](https://pcbkit.io/boards/andaniuwu-purifier-control)

Source

Repository: andaniuwu/purifier-control
Board file: hardware/Walle_E_ESP32_S3_Node_v2.kicad_pcb
Commit: d10962c
Licence: Not stated

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