2 layers25.3 × 61 mm
2 layers18 × 26 mm
LAN Module WROOM32-Compatible
jorticus/esp32-poe-dev8Compact ESP32 PoE dev board
- Size
- 18 × 26 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 57
- Nets
- 110
- Pads
- 291
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 6 (file 20211014)
- Created
- 28 Feb 2025
- Updated
- 16 Mar 2025
Overview
LAN Module WROOM32-Compatible is an open-source printed circuit board by jorticus, from the jorticus/esp32-poe-dev repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 18 × 26 mm with 57 parts on 110 nets.
It is built around the ESP32-U4WDH, LV2842XLVDDCR-JSM and HR911105A. Its parts include 26 capacitors, 18 resistors, 4 ICs, 4 connectors and 3 inductors. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-U4WDH
QFN-48-EP(5x5)-40℃~+105℃ -98dBm 130mA 150Mbps 2.3V~3.6V 2.412GHz~2.484GHz 2.4GHz 20.5dBm 95mA Bluetooth、WiFi SPI、UART、ADC、I2C、I2S、PWM、PCM、SDIO transceiver QFN-48-EP(5x5) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
LV2842XLVDDCR-JSM
TSOT-23-6L-40℃~+125℃ 1 1A 1MHz 4.6V~40V 80uA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting Step-down type Yes TSOT-23-6L DC-DC Converters ROHSJSMSEMIDC-DC Converters
HR911105A
插件0℃~+70℃ 1 Filtered Gold Non-PoE Phosphor bronze RJ45 Jack Right Angle Shielded With LED 插件 Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSHANRUNEthernet Connectors / Modular Connectors (RJ45 RJ11)
README
README.mdESP32 PoE Dev Board
A simple ESP32 ethernet + PoE dev board
WARNING: PoE is NOT ISOLATED! Be careful what you attach.
See jared.geek.nz/esp32-poe-devboard for the story.
Usage
ESPHome
esp32:
board: esp32dev
ethernet:
type: RTL8201
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_OUT
phy_addr: 0
...Arduino
main.cpp
void setup() {
// WiFi antenna not available on this board
WiFi.mode(WIFI_OFF);
ETH.begin();
ETH.config();
}platformio.ini
[platformio]
[env:esp32_poe]
platform = espressif32
framework = arduino
board = esp32_dev
build_flags =
-DETH_PHY_ADDR=0
-DETH_PHY_MDC=23
-DETH_PHY_MDIO=18
-DETH_PHY_TYPE=ETH_PHY_RTL8201
-DETH_CLK_MODE=ETH_CLOCK_GPIO0_OUTParts
57| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C7, C8, C9, C19, C20, C22, C23, C24, C25, C26 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R9, R10, R11, R12 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric | C4, C10, C11 |
| 3 | 49.9R 1% | Resistor_SMD:R_0603_1608Metric | R14, R17, R18 |
| 2 | 10u | Capacitor_SMD:C_Elec_3x5.4 | C5, C6 |
| 2 | 22p | Capacitor_SMD:C_0603_1608Metric | C12, C13 |
| 2 | 240R | Resistor_SMD:R_0603_1608Metric | R15, R16 |
| 2 | 4.7u | Capacitor_SMD:C_Elec_3x5.4 | C14, C21 |
| 2 | FB 600R@100MHz 1.3A | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | L1, L3 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 10k 1% | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 10uH 1A | Inductor_SMD:L_Taiyo-Yuden_NR-40xx | L2 |
| 1 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C18 |
| 1 | 2.49k 1% | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 20K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 22u | Capacitor_SMD:C_Elec_6.3x5.4 | C17 |
| 1 | 2k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 3.3n | Capacitor_SMD:C_0603_1608Metric | C15 |
| 1 | 33k 1% | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 40MHz ±10ppm | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | 499R | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 50R 1% | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | Conn_Left | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J3 |
| 1 | Conn_Right | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J5 |
| 1 | ESP32-U4WDH | Visclib:ESP32-REDUCED | U1 |
| 1 | ESP32-WROOM-CASTELLATED | Visclib:ESP32-WROOM-32-CASTELLATED | J6 |
| 1 | FM240W | Diode_SMD:D_SMA | D1 |
| 1 | HR911105A | Connector_RJ:RJ45_Hanrun_HR911105A | J2 |
| 1 | LV2842XLVDDCR | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | RTL8201F | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U4 |
| 1 | W25Q32 | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U2 |
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Questions
How big is the LAN Module WROOM32-Compatible PCB?
It measures 18 × 26 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LAN Module WROOM32-Compatible use?
57 parts, built around the ESP32-U4WDH, LV2842XLVDDCR-JSM and HR911105A. 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 LAN Module WROOM32-Compatible KiCad files?
From the jorticus/esp32-poe-dev repository on GitHub, at the commit this page was made from: the board is LAN-Module-WROOM32-Compatible.kicad_pcb and its schematic LAN-Module-1P.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LAN Module WROOM32-Compatible design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).