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ESP-PoE-ISO

OLIMEX·ESP32-POE-ISO·HARDWARE/ESP32-PoE-ISO-Rev.C/ESP32-PoE-ISO_Rev_C.kicad_pcb

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

ESP-PoE-ISO is an open source ESP32 PCB design by OLIMEX, published on GitHub. It is a 4-layer board measuring 28 × 93 mm, with 116 components from 60 distinct parts.

Its main chip is the ESP32-WROOM-32D-4MB, 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 44 resistors, 30 capacitors, 7 diodes, 6 ICs, 6 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 ESP-PoE-ISO

CH340T(SSOP20W)BL4054B-42TPRN(SOT23-5)LAN8710A-EZC(QFN32)SY8089AAAC(SOT23-5)Si3402-B-GM(QFN-20_5x5mm)ESP32-WROOM-32D-4MB

ESP-PoE-ISO bill of materials (BOM)

116 components, 60 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
ESP32-WROOM-32D-4MB
U9
1
Q12MHz/20pF/10ppm/4P/3.2x2.5mm
Q1
2
BC817-40(SOT23)
Q2, Q3
1
DW02R
BAT1
2
IT1185AU2
BUT1, RST1
1
F0505S-2WR2(SIP-7)
DCDC1
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
DTC114YKA(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
1
LED/GREEN/0603
LNK1
Show 40 more
QtyPartRefs
1
LED/RED/0603
PWR1
4
1N5819S4/SOD123
D1, D3, D6, D7
1
BAT54C(SOT23-3)
D2
1
1N5819S4/SOD-123
D4
1
SS510/100V/5A/0.85V/DO214AB(SMC)
D5
4
FB0805/600R/2A
L1, L3, L5, L6
1
2.2uH/1.5A/DCR=72mR/20%/3.00x3.00x1.50mm/CD32(NR3015T2R2M)
L2
1
33uH/2.1A/DCR=0.1R/20%/DBS135(PD3316MT330)
L4
9
22uF/6.3V/20%/X5R/C0603
C1, C6, C7, C9, C10, C13, C19, C22 +1
1
1nF/2000V/10%/X7R/C1206
C2
1
47uF/6.3V/20%/X5R/C0805
C3
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
1.0nF/3kV/10%/X7R/SMD/1808(VISHAY-VJ1808Y102KBHAT4X_Farnell-2407291)
C20, C23
1
NA(10uF/6.3V/20%/X5R/C0603)
C21
1
100nF/100V/20%/C1206
C24
2
1nF/50V/10%/X7R/C0402
C26, C28
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, R6, R18, R19, R25, R36, R37 +2
3
1k/R0402
R3, R20, R21
2
47k/R0402
R4, R33
6
2.2k/R0402
R5, R8, R14, R15, R31, R35
3
470k/R0402
R7, R16, R32
1
100k/R0402
R9
4
49.9R/1%/R0402
R10, R11, R12, R13
1
NA
R17
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
1.05k/1%/R0402
R41
1
3.01k/1%/R0402
R42
2
220R/5%/0.25W/R1206
R43, R45
1
NA/R0402
R49

ESP-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.

ESP-PoE-ISO: common questions

What microcontroller does the ESP-PoE-ISO use?

The ESP-PoE-ISO is built around the ESP32-WROOM-32D-4MB, from the ESP32 family.

How big is the ESP-PoE-ISO PCB?

The ESP-PoE-ISO measures 28 × 93 mm, has 4 copper layers and is 1.6 mm thick.

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

116 components, from 60 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 ESP-PoE-ISO design files?

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

Can I use the ESP-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 ESP-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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