ESP32-PoE Rev B2
About the ESP32-PoE Rev B2 PCB
ESP32-PoE Rev B2 is an open source ESP32 PCB design by frankshieh, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 28 × 75 mm, with 111 components from 57 distinct parts.
Its main chip is the ESP-WROOM-32, from the ESP32 family. Other key parts include the CH340T(SSOP20W), MCP73833(MSOP10), LAN8710A-EZC(QFN32), SY8089AAAC(SOT23-5) and Si3402-B-GM(QFN-20_5x5mm). By type, the board carries 44 resistors, 26 capacitors, 6 ICs, 5 LEDs, 5 diodes and 5 inductors.
It belongs with the iot & wireless designs in this gallery.
From the project
ESP32-PoE is an IoT WIFI/BLE/Ethernet development board with Power-Over-Ethernet feature.
ESP32-PoE is an IoT WIFI/BLE/Ethernet development board with Power-Over-Ethernet feature.
The Si3402-B chip is IEEE 802.3-compliant, including pre-standard (legacy) PoE support.
Perfect solution for Internet-of-Things that can be expanded with sensors and actuators taking power from Ethernet cable.
Low-power design consuming less then 100uA in deep sleep mode!
Product page: https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware
Main components on the ESP32-PoE Rev B2
ESP32-PoE Rev B2 bill of materials (BOM)
111 components, 57 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CH340T(SSOP20W) | SSOP-20W | U1 |
| 1 | MCP73833(MSOP10) | MSOP-10_Pitch-0.5mm_3.00x3.00x1.00mm | U3 |
| 1 | LAN8710A-EZC(QFN32) | QFN32_EP(33)_5.00x5.00x0.90mm_Pitch_0.50mm | U4 |
| 1 | SY8089AAAC(SOT23-5) | SOT-23-5 | U7 |
| 1 | Si3402-B-GM(QFN-20_5x5mm) | QFN-20_5x5mm(Si3402-B-GM) | U8 |
| 1 | ESP-WROOM-32 | ESP-WROOM-32_MODULE | U9 |
| 1 | Q12MHz/20pF/10ppm/4P/3.2x2.5mm | TSX-3.2x2.5mm_GND(3) | Q1 |
| 2 | BC817-40(SOT23) | SOT23 | Q2, Q3 |
| 1 | DW02R | LIPO_BAT-CON2DW02R | BAT1 |
| 2 | IT1185AU2 | IT1185AU2_V2 | BUT1, RST1 |
| 2 | Soldered | SJ_1_SMALLER | EN_CT1, EN_CT2 |
| 2 | NS(HN1x10) | HN1x10 | EXT1, EXT2 |
| 3 | WPM2015-3/TR | SOT23 | FET1, FET2, FET3 |
| 1 | TFC-9P-1.7H(ATFFS150A01BR016) | uSD(TFC-9P-1.xH(ATFFS150A01BR016)) | MICRO_SD1 |
| 3 | RA1206_(4X0603)_4B8_2.2k | R_MATRIX_4 | RM1, RM2, RM3 |
| 1 | DTC114YKA(SOT-23) | SOT23 | T1 |
| 1 | B-V-10-LF(GBH254SMT-10) | GBH-254-SMT-10 | UEXT1 |
| 1 | MISB-SWMM-5B-LF(USB_MICRO) | USB-MICRO_MISB-SWMM-5B_LF | USB-UART1 |
| 2 | LED/YELLOW/0603 | LED_0603_KA | ACT1, CHRG1 |
| 2 | LED/GREEN/0603 | LED_0603_KA | COMPL1, LNK1 |
Show 37 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LED/RED/0603 | LED_0603_KA | PWR1 |
| 2 | 1N5822/SS34/SMA | SMA-KA | D1, D3 |
| 1 | BAT54C(SOT23-3) | SOT23-3 | D2 |
| 1 | 1N5819S4(SOD-123) | SOD-123_1C-2A_KA | D4 |
| 1 | SS510/100V/5A/0.85V/DO214AB(SMC) | DO214AB(SMC)_1(K)-2(A) | D5 |
| 3 | FB0805/600R/2A | L_0805_5MIL_DWS | L1, L5, L6 |
| 1 | 2.2uH/1.5A/DCR<0.1R/CD32 | CD32 | L2 |
| 1 | 33uH/2.1A/DCR=0.1R/20%/DBS135(PD3316MT330) | DBS135 | L4 |
| 8 | 22uF/6.3V/20%/X5R/C0603 | C_0603_5MIL_DWS | C1, C6, C7, C9, C10, C13, C22, C30 |
| 1 | 1nF/2000V/10%/X7R/C1206 | C_1206_5MIL_DWS_ISO | C2 |
| 1 | 47uF/6.3V/20%/X5R/C0805 | C_0805_5MIL_DWS | C3 |
| 2 | 27pF/50V/5%/C0G/C0402 | C_0402_5MIL_DWS | C4, C5 |
| 7 | 100nF/16V/10%/X7R/C0402 | C_0402_5MIL_DWS | C8, C11, C14, C15, C16, C18, C25 |
| 1 | 2.2uF/100V/20%/X7R/C01206 | C_1206_5MIL_DWS_ISO | C12 |
| 1 | 2.2uF/6.3V/10%/X5R/C0603 | C_0603_5MIL_DWS | C17 |
| 1 | NA(10uF/6.3V/20%/X5R/C0603) | C_0603_5MIL_DWS | C21 |
| 1 | 100nF/100V/20%/C1206 | C_1206_5MIL_DWS | C24 |
| 1 | 1nF/50V/10%/X7R/C0603 | C_0603_5MIL_DWS | C26 |
| 1 | 15uF/100V/20%/RM2.5/6.3x11mm(Farnell:1281844 ) | CPOL-RM2.5mm_6.3x11mm_SMD | C27 |
| 1 | 680uF/10V/20%/105C/RM3.5/8x11.5mm | CPOL-RM3.5mm_8.0x11.5mm_SMD | C29 |
| 8 | 10k/R0402 | R_0402_5MIL_DWS | R1, R2, R17, R25, R36, R37, R39, R48 |
| 5 | 1k/R0402 | R_0402_5MIL_DWS | R3, R16, R20, R21, R32 |
| 8 | 2.2k/R0402 | R_0402_5MIL_DWS | R5, R6, R8, R14, R15, R22, R31, R35 |
| 1 | 0R(board_mounted) | 0R_0603 | R7 |
| 4 | 49.9R/1%/R0402 | R_0402_5MIL_DWS | R10, R11, R12, R13 |
| 5 | 220R/R0402 | R_0402_5MIL_DWS | R18, R19, R24, R46, R47 |
| 1 | 12.1k/1%/R0402 | R_0402_5MIL_DWS | R26 |
| 1 | 4.99k/1%/R0402 | R_0402_5MIL_DWS | R29 |
| 1 | 1.1k/1%/R0402 | R_0402_5MIL_DWS | R30 |
| 1 | 47k/R0402 | R_0402_5MIL_DWS | R33 |
| 1 | NA(49.9R/1%/R0402) | R_0402_5MIL_DWS | R34 |
| 1 | 25.5k/1%/R0603 | R_0603_5MIL_DWS | R38 |
| 1 | 10R/R0402 | R_0402_5MIL_DWS | R40 |
| 1 | 1k/1%/R0402 | R_0402_5MIL_DWS | R41 |
| 1 | 3.01k/1%/R0402 | R_0402_5MIL_DWS | R42 |
| 2 | 220R/5%/0.25W/R1206 | R_1206_5MIL_DWS | R43, R45 |
| 2 | NA/R0402 | R_0402_5MIL_DWS | R44, R49 |
ESP32-PoE Rev B2 design files
The KiCad project lives in the frankshieh/ESP32_POE repository on GitHub; these links point at the commit this page was built from.
ESP32-PoE Rev B2: common questions
What microcontroller does the ESP32-PoE Rev B2 use?
The ESP32-PoE Rev B2 is built around the ESP-WROOM-32, from the ESP32 family.
How big is the ESP32-PoE Rev B2 PCB?
The ESP32-PoE Rev B2 measures 28 × 75 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ESP32-PoE Rev B2?
111 components, from 57 distinct parts. The full bill of materials is listed on this page.
Where can I download the ESP32-PoE Rev B2 design files?
From the frankshieh/ESP32_POE repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ESP32-PoE Rev B2 design in my own project?
Yes, under the terms of its Apache-2.0 license, which frankshieh chose for the repository.
Can I test firmware for the ESP32-PoE Rev B2 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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