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ESP32-PoE-ISO

OLIMEX·ESP32-POE-ISO·HARDWARE/ESP32-PoE-ISO-Rev.N1/ESP32-PoE-ISO_Rev_N1.kicad_pcb

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

ESP32-PoE-ISO is an open source ESP32 PCB design by OLIMEX, published on GitHub. It is a 4-layer board measuring 28 × 98.2 mm, with 131 components from 74 distinct parts.

Its main chip is the ESP32-WROOM-32E-N4, from the ESP32 family. Other key parts include the CH340X(MSOP-10), TPS2378DDAR(HSOIC-8), TP4054-42-SOT25-R(SOT23-5), LAN8710A-EZC(QFN32) and TX4138(ESOIC-8). By type, the board carries 49 resistors, 29 capacitors, 11 diodes, 8 ICs, 5 inductors and 4 LEDs.

It belongs with the iot & wireless designs in this gallery.

From the project

ESP32 Power Over Ethernet board with 3000VDC Galvanic insulation

ESP32-PoE-ISO 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.

ESP32-POE-ISO has 3000VDC galvanic insulation from the Ethernet.

Main components on the ESP32-PoE-ISO

CH340X(MSOP-10)TPS2378DDAR(HSOIC-8)TP4054-42-SOT25-R(SOT23-5)LAN8710A-EZC(QFN32)TX4138(ESOIC-8)ESP32-WROOM-32E-N4TPS62A02ADRLR(SOT-563-6)NA(SN74LVC1G04DBVR(SOT23-5))

ESP32-PoE-ISO bill of materials (BOM)

131 components, 74 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CH340X(MSOP-10)
U1
1
TPS2378DDAR(HSOIC-8)
U2
1
TP4054-42-SOT25-R(SOT23-5)
U3
1
LAN8710A-EZC(QFN32)
U4
1
TX4138(ESOIC-8)
U5
1
ESP32-WROOM-32E-N4
U6
1
TPS62A02ADRLR(SOT-563-6)
U7
1
NA(SN74LVC1G04DBVR(SOT23-5))
U8
2
BC817-40(SOT23)
Q2, Q3
1
DW02S
BAT1
2
IT1185AU2
BUT1, RST1
1
F0505S-2WR2(SIP-7)
DCDC1
2
NS(HN1x10)
EXT1, EXT2
3
IRLML6402TRPbF
FET1, FET2, FET3
1
RJP-003TC1(LPJ4112CNL)
LAN_CON1
3
Mounting_Hole_NPTH
MH1, MH2, MH3
1
TFC-9P-1.7H(ATFFS150A01BR016)
MICRO_SD1
3
RA1206_(4X0603)_4B8_2.2k
RM1, RM2, RM3
1
LMUN2211LT1G(SOT-23)
T1
1
ESDS314DBVR(SOT-23-5)
TVS1
Show 54 more
QtyPartRefs
2
NA(GG0402052R542P)
TVS2, TVS3
1
P-B-V-10-LF
UEXT1
1
MISB-SWMM-5B-LF(USB_MICRO)
USB-UART1
2
LED/YELLOW/0603
ACT1, CHRG1
1
LED/GREEN/0603
LNK1
1
LED/RED/0603
PWR1
6
1N5819S4/SOD123
D1, D3, D4, D6, D7, D9
1
BAT54C(SOT23-3)
D2
1
SS510/100V/5A/0.85V/DO214AB(SMC)
D5
1
NA(SMBJ6.0A)
D8
1
SMAJ58A/SMA
D10
1
SMBJ5.0A
D11
3
FB0805/600R/2A
L1, L3, L5
1
1.0uH/4.2A/DCR=35mR/20%/2.00x1.60x1.00mm/L2016(PIM201610-1R0MTS00)
L2
1
33uH/2.1A/DCR=0.1R/20%/DBS135(PD3316MT330)
L4
8
22uF/6.3V/20%/X5R/C0603
C1, C6, C7, C9, C10, C13, C19, C22
1
1nF/2000V/10%/X7R/C1206
C2
1
47uF/6.3V/20%/X5R/C0805
C3
6
100nF/10V/20%/X5R/C0402
C8, C11, C14, C15, C16, C18
2
100nF/100V/10%/X7R/C0603
C12, C24
1
2.2uF/6.3V/10%/X5R/C0603
C17
1
NA(1.0nF/3kV/10%/X7R/SMD/1808(VISHAY-VJ1808Y102KBHAT4X_Farnell-2407291))
C20
1
NA(10uF/6.3V/20%/X5R/C0603)
C21
1
1.0nF/3kV/10%/X7R/SMD/1808(VISHAY-VJ1808Y102KBHAT4X_Farnell-2407291)
C23
1
12pF/50V/5%/COG/C0402
C25
1
470uF/10V/20%/Low_ESR/RM2.5/6.0x11mm
C26
1
15uF/100V/20%/RM2.5/6.3x11mm(Farnell:1281844)
C27
1
1nF/50V/10%/X7R/C0402
C28
1
NA(100nF/10V/20%/X5R/C0402)
C29
1
NA(120pF/50V/5%/C0G/C0402)
C30
1
1uF/10V/10%/X5R/C0603
C31
11
10k/R0402
R1, R2, R6, R18, R19, R25, R32, R36 +3
3
1k/R0402
R3, R20, R21
1
47k/R0402
R4
6
2.2k/R0402
R5, R8, R14, R15, R31, R35
2
470k/R0402
R7, R16
1
100k/R0402
R9
4
49.9R/1%/R0402
R10, R11, R12, R13
2
NA/R0402
R17, R49
1
24.9k/1%/R0402
R22
1
1.27k/1%/62.5mW/R0402
R23
4
220R/R0402
R24, R44, R46, R47
1
12.1k/1%/R0402
R26
2
9.1k/1W/R2512
R27, R41
1
0.03R/1%/R1206
R28
1
220k/R0402
R29
1
49.9k/1%/R0402
R30
1
4.7R/R0402
R33
1
10.5k/1%/R0402
R34
1
56.2k/1%/R0402
R38
1
10R/R0402
R40
1
NA(10R/R0402)
R42
1
4.7k/R0402
R43
1
10k/R1206
R45

ESP32-PoE-ISO design files

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

ESP32-PoE-ISO: common questions

What microcontroller does the ESP32-PoE-ISO use?

The ESP32-PoE-ISO is built around the ESP32-WROOM-32E-N4, from the ESP32 family.

How big is the ESP32-PoE-ISO PCB?

The ESP32-PoE-ISO measures 28 × 98.2 mm, has 4 copper layers and is 1.578 mm thick.

How many components are on the ESP32-PoE-ISO?

131 components, from 74 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-ISO design files?

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

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

The repository has no license, so all rights stay with OLIMEX. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32-PoE-ISO 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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