LAN-Module-WROOM32-Compatible
jorticus·esp32-poe-dev
About the LAN-Module-WROOM32-Compatible
LAN-Module-WROOM32-Compatible is an open source ESP32 PCB design by jorticus, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 18 × 26 mm, with 57 components from 31 distinct parts.
Its main chip is the ESP32-U4WDH, from the ESP32 family. Other key parts include the W25Q32, LV2842XLVDDCR and RTL8201F. By type, the board carries 26 capacitors, 18 resistors, 4 ICs, 4 connectors, 3 inductors and 1 crystal.
It belongs with the dev boards & breakouts and iot & wireless designs in this gallery.
From the project
Compact ESP32 PoE dev board
WARNING: PoE is NOT ISOLATED! Be careful what you attach.
See jared.geek.nz/esp32-poe-devboard for the story.

Main components on the LAN-Module-WROOM32-Compatible
LAN-Module-WROOM32-Compatible bill of materials (BOM)
57 components, 31 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-U4WDH | ESP32-REDUCED | U1 |
| 1 | W25Q32 | SOIC-8_5.23x5.23mm_P1.27mm | U2 |
| 1 | LV2842XLVDDCR | SOT-23-6 | U3 |
| 1 | RTL8201F | QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U4 |
| 1 | 40MHz ±10ppm | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | HR911105A | RJ45_Hanrun_HR911105A | J2 |
| 1 | Conn_Left | PinHeader_1x16_P2.54mm_Vertical | J3 |
| 1 | Conn_Right | PinHeader_1x16_P2.54mm_Vertical | J5 |
| 1 | ESP32-WROOM-CASTELLATED | ESP32-WROOM-32-CASTELLATED | J6 |
| 1 | FM240W | D_SMA | D1 |
| 2 | FB 600R@100MHz 1.3A | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | L1, L3 |
| 1 | 10uH 1A | L_Taiyo-Yuden_NR-40xx | L2 |
| 13 | 100n | C_0603_1608Metric | C1, C2, C3, C7, C8, C9, C19, C20 +5 |
| 3 | 1u | C_0805_2012Metric | C4, C10, C11 |
| 2 | 10u | C_Elec_3x5.4 | C5, C6 |
| 2 | 22p | C_0603_1608Metric | C12, C13 |
| 2 | 4.7u | C_Elec_3x5.4 | C14, C21 |
| 1 | 3.3n | C_0603_1608Metric | C15 |
| 1 | 10n | C_0603_1608Metric | C16 |
| 1 | 22u | C_Elec_6.3x5.4 | C17 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2.2u | C_0603_1608Metric | C18 |
| 6 | 10k | R_0603_1608Metric | R1, R5, R9, R10, R11, R12 |
| 1 | 2k | R_0603_1608Metric | R2 |
| 1 | 20K | R_0603_1608Metric | R3 |
| 1 | 499R | R_0603_1608Metric | R4 |
| 1 | 33k 1% | R_0603_1608Metric | R6 |
| 1 | 10k 1% | R_0603_1608Metric | R7 |
| 1 | 2.49k 1% | R_0603_1608Metric | R8 |
| 1 | 50R 1% | R_0603_1608Metric | R13 |
| 3 | 49.9R 1% | R_0603_1608Metric | R14, R17, R18 |
| 2 | 240R | R_0603_1608Metric | R15, R16 |
LAN-Module-WROOM32-Compatible design files
The KiCad project lives in the jorticus/esp32-poe-dev repository on GitHub; these links point at the commit this page was built from.
LAN-Module-WROOM32-Compatible: common questions
What microcontroller does the LAN-Module-WROOM32-Compatible use?
The LAN-Module-WROOM32-Compatible is built around the ESP32-U4WDH, from the ESP32 family.
How big is the LAN-Module-WROOM32-Compatible?
The LAN-Module-WROOM32-Compatible measures 18 × 26 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LAN-Module-WROOM32-Compatible?
57 components, from 31 distinct parts. The full bill of materials is listed on this page.
Where can I download the LAN-Module-WROOM32-Compatible design files?
From the jorticus/esp32-poe-dev repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the LAN-Module-WROOM32-Compatible design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which jorticus chose for the repository.
Can I test firmware for the LAN-Module-WROOM32-Compatible without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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