LAN-Module-1P
About the LAN-Module-1P
LAN-Module-1P 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 30.5 × 53.3 mm, with 61 components from 32 distinct parts.
Its main chip is the ESP32-U4WDH, from the ESP32 family. Other key parts include the W25Q32, LV2842XLVDDCR and CP2102N-Axx-xQFN24. By type, the board carries 23 capacitors, 19 resistors, 4 ICs, 4 diodes, 4 inductors and 3 connectors.
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-1P
LAN-Module-1P bill of materials (BOM)
61 components, 32 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 | CP2102N-Axx-xQFN24 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U4 |
| 2 | 2N7002 | SOT-23 | Q1, Q2 |
| 1 | 40MHz ±10ppm | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | ANT | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J1 |
| 1 | Conn_Left | ProtoCastellatedHeader_1x16 | J4 |
| 1 | Conn_Right | ProtoCastellatedHeader_1x16 | J5 |
| 1 | RESET | SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 4 | FM240W | D_SOD-123 | D1, D2, D4, D5 |
| 2 | FB 600R@100MHz 1.3A | R_0603_1608Metric | L1, L3 |
| 2 | 10uH 1A | L_Taiyo-Yuden_NR-40xx | L2, L4 |
| 8 | 100n | C_0603_1608Metric | C1, C5, C6, C7, C17, C19, C22, C23 |
| 3 | 1u | C_0603_1608Metric | C2, C8, C9 |
| 2 | 10u | C_0603_1608Metric | C3, C4 |
| 2 | 22p | C_0603_1608Metric | C10, C11 |
| 1 | 4.7u | C_0603_1608Metric | C12 |
| 2 | 3.3n | C_0603_1608Metric | C13, C15 |
| 2 | 10n | C_0603_1608Metric | C14, C16 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 2.2u | C_0603_1608Metric | C18, C21 |
| 1 | 4.7u | C_Elec_3x5.4 | C24 |
| 8 | 10k | R_0603_1608Metric | R1, R5, R6, R9, R10, R11, R12, R15 |
| 1 | 2k | R_0603_1608Metric | R2 |
| 1 | 20K | R_0603_1608Metric | R3 |
| 1 | 2.49k 1% | R_0603_1608Metric | R4 |
| 2 | 499R | R_0603_1608Metric | R7, R8 |
| 1 | 22k | R_0603_1608Metric | R13 |
| 1 | 47k | R_0603_1608Metric | R14 |
| 1 | 33k 1% | R_0603_1608Metric | R16 |
| 1 | 10k 1% | R_0603_1608Metric | R17 |
| 2 | 0R | R_0603_1608Metric | R18, R19 |
LAN-Module-1P 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.
- LayoutLAN-Module-1P.kicad_pcb
- SchematicLAN-Module-1P.kicad_sch
LAN-Module-1P: common questions
What microcontroller does the LAN-Module-1P use?
The LAN-Module-1P is built around the ESP32-U4WDH, from the ESP32 family.
How big is the LAN-Module-1P?
The LAN-Module-1P measures 30.5 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LAN-Module-1P?
61 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the LAN-Module-1P 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-1P 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-1P 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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