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ESP32-PoE Rev E

OLIMEX·ESP32-POE·HARDWARE/ESP32-PoE-hardware-revision-E/ESP32-PoE_Rev_E.kicad_pcb

ESP32-PoE Rev E PCB layout, top view — open source ESP32 board by OLIMEX
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About the ESP32-PoE Rev E PCB

ESP32-PoE Rev E is an open source ESP32 PCB design by OLIMEX, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 28 × 75 mm, with 117 components from 62 distinct parts.

Its main chip is the ESP-WROOM-32, from the ESP32 family. Other key parts include the CH340T(SSOP20W), BL4054B-42TPRN(SOT23-5), LAN8710A-EZC(QFN32), SY8089AAAC(SOT23-5) and Si3402-B-GM(QFN-20_5x5mm). By type, the board carries 45 resistors, 28 capacitors, 7 diodes, 6 ICs, 6 inductors and 4 LEDs.

It belongs with the iot & wireless and dev boards & breakouts designs in this gallery.

From the project

ESP32 IoT development board with 100Mb Ethernet and 802.3 Power Over Ethernet (POE)

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 E

CH340T(SSOP20W)BL4054B-42TPRN(SOT23-5)LAN8710A-EZC(QFN32)SY8089AAAC(SOT23-5)Si3402-B-GM(QFN-20_5x5mm)ESP-WROOM-32

ESP32-PoE Rev E bill of materials (BOM)

117 components, 62 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CH340T(SSOP20W)
U1
1
BL4054B-42TPRN(SOT23-5)
U3
1
LAN8710A-EZC(QFN32)
U4
1
SY8089AAAC(SOT23-5)
U7
1
Si3402-B-GM(QFN-20_5x5mm)
U8
1
ESP-WROOM-32
U9
1
Q12MHz/20pF/10ppm/4P/3.2x2.5mm
Q1
2
BC817-40(SOT23)
Q2, Q3
1
DW02R
BAT1
1
Opened
BAT_SENS_E1
2
IT1185AU2
BUT1, RST1
2
Closed
EN_CT1, EN_CT2
2
NS(HN1x10)
EXT1, EXT2
3
WPM2015-3/TR
FET1, FET2, FET3
1
TFC-9P-1.7H(ATFFS150A01BR016)
MICRO_SD1
3
RA1206_(4X0603)_4B8_2.2k
RM1, RM2, RM3
1
LMUN2211LT1G(SOT-23)
T1
1
P-B-V-10-LF
UEXT1
1
MISB-SWMM-5B-LF(USB_MICRO)
USB-UART1
2
LED/YELLOW/0603
ACT1, CHRG1
Show 42 more
QtyPartRefs
1
LED/GREEN/0603
LNK1
1
LED/RED/0603
PWR1
2
1N5822/SS34/SMA
D1, D3
1
BAT54C(SOT23-3)
D2
3
1N5819S4(SOD-123)
D4, D6, D7
1
SS510/100V/5A/0.85V/DO214AB(SMC)
D5
3
FB0805/600R/2A
L1, L5, L6
1
2.2uH/1.5A/DCR=72mR/20%/3.00x3.00x1.50mm/CD32(NR3015T2R2M)
L2
1
NA(FB0805/600R/2A)
L3
1
33uH/2.1A/DCR=0.1R/20%/DBS135(PD3316MT330)
L4
7
22uF/6.3V/20%/X5R/C0603
C1, C6, C7, C9, C10, C13, C30
1
1nF/2000V/10%/X7R/C1206
C2
2
47uF/6.3V/20%/X5R/C0805
C3, C22
2
27pF/50V/5%/C0G/C0402
C4, C5
7
100nF/16V/10%/X7R/C0402
C8, C11, C14, C15, C16, C18, C25
1
2.2uF/100V/20%/X7R/C1206(AVX_12061C225KAT2A_Comet)
C12
1
2.2uF/6.3V/10%/X5R/C0603
C17
2
1nF/50V/10%/X7R/C0402
C19, C26
1
1uF/10V/20%/X5R/C0603
C20
1
NA(10uF/6.3V/20%/X5R/C0603)
C21
1
100nF/100V/20%/C1206
C24
1
15uF/100V/20%/RM2.5/6.3x11mm(Farnell:1281844)
C27
1
680uF/10V/20%/105C/RM3.5/8x11.5mm
C29
10
10k/R0402
R1, R2, R18, R19, R25, R32, R36, R37 +2
3
1k/R0402
R3, R20, R21
2
47k/R0402
R4, R33
7
2.2k/R0402
R5, R6, R8, R14, R15, R31, R35
1
100k/R0402
R9
4
49.9R/1%/R0402
R10, R11, R12, R13
1
NA(10k/R0402)
R16
2
470k/R0402
R17, R22
3
220R/R0402
R24, R46, R47
1
12.1k/1%/R0402
R26
1
220k/R0402
R29
1
49.9k/1%/R0402
R30
1
NA(49.9R/1%/R0402)
R34
1
25.5k/1%/R0603
R38
1
10R/R0402
R40
1
1k/1%/R0402
R41
1
3.01k/1%/R0402
R42
2
220R/5%/0.25W/R1206
R43, R45
2
NA/R0402
R44, R49

ESP32-PoE Rev E design files

The KiCad project lives in the OLIMEX/ESP32-POE repository on GitHub; these links point at the commit this page was built from.

ESP32-PoE Rev E: common questions

What microcontroller does the ESP32-PoE Rev E use?

The ESP32-PoE Rev E is built around the ESP-WROOM-32, from the ESP32 family.

How big is the ESP32-PoE Rev E PCB?

The ESP32-PoE Rev E measures 28 × 75 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32-PoE Rev E?

117 components, from 62 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the ESP32-PoE Rev E design files?

From the OLIMEX/ESP32-POE repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ESP32-PoE Rev E design in my own project?

Yes, under the terms of its Apache-2.0 license, which OLIMEX chose for the repository.

Can I test firmware for the ESP32-PoE Rev E 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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