ESP32-GATEWAY Rev C

OLIMEX·ESP32-GATEWAY·HARDWARE/Hardware revision C/ESP32-GATEWAY_Rev_C.kicad_pcb

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

ESP32-GATEWAY Rev C 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 50.8 × 62.2 mm, with 83 components from 45 distinct parts.

Its main chip is the ESP-WROOM-32, from the ESP32 family. Other key parts include the SY8089AAAC(SOT23-5), LAN8710A-EZC(QFN32), CH340T(SSOP20W), NCP303LSN27T1G(SOT-23-5) and BAT54C(SOT23-3). By type, the board carries 33 resistors, 21 capacitors, 7 ICs, 3 transistors, 3 inductors and 2 LEDs.

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

From the project

ESP32 IoT Gateway board with BLE WIFI and Ethernet

Notice that we use the latest nightly KiCad builds.

1. To reduce noise getting picked by Ethernet clock, disconnected GPIO17 from the CON1 header. Added jumper pads GPIO17_E1 (open by default) if somebody wants to lead it to the header...

1. Added diode D5 on esp_en; 3. Added TVS1 on PHY; 4. Opravi se value na NA(HN1x20); 5. T1 now LMUN2211LT1G; 6. USB connector changed to type C (more popular nowadays); 7. Added r12 and c6; 8. Added CE sign; 9. R28,R31,R32,R33 lowered to 0402 size; 10. DCDC - SY8089 changed to TPS62A02ADRLR. C3 now NA. L2 changed to 1.0uH/2.5A/CD32; 11. Updated the CH340X…

Main components on the ESP32-GATEWAY Rev C

ESP32-GATEWAY Rev C bill of materials (BOM)

83 components, 45 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SY8089AAAC(SOT23-5)
U2
1
ESP-WROOM-32
U3
1
LAN8710A-EZC(QFN32)
U4
1
CH340T(SSOP20W)
U5
1
NCP303LSN27T1G(SOT-23-5)
U8
2
BAT54C(SOT23-3)
U9, U10
1
Q12MHz/20pF/30ppm/2P/HC-49SM(SMD)
Q3
2
BC817-40(SOT23)
Q4, Q5
1
NA(NH1x20)
CON1
2
T1107A(6x3,8x2,5MM)
BUT1, RST1
1
Q50MHz/25ppm/3V/4P/5x3.2mm
CR1
1
WPM2015-3/TR
FET2
2
Mounting_hole_Shield_3.3mm
MH1, MH2
1
TFC-WXCP11-08-LF
MICRO_SD1
1
Opened
PHY_RST1
2
RA1206_(4X0603)_4B8_2.2k
RM2, RM3
1
MISB-SWMM-5B-LF(USB_MICRO)
USB-UART1
1
LED/GREEN/0603
LED1
1
LED/RED/0603
PWRLED1
1
SMBJ6.0A(DO-214AA)
D2
Show 25 more
QtyPartRefs
1
1N5822/SS34/SMA
D6
1
2.2uH/1.5A/DCR<0.1R/CD32
L2
2
FB0805/600R/2A
L3, L4
4
47uF/6.3V/20%/X5R/C0805
C1, C3, C4, C10
4
22uF/6.3V/20%/X5R/C0603
C8, C9, C12, C23
6
100nF/50V/20%/Y5V/C0603
C11, C13, C14, C15, C17, C24
1
2.2uF/6.3V/10%/X5R/C0603
C16
1
NA(10uF/6.3V/20%/X5R/C0603)
C18
1
1nF/2000V/10%/X7R/C1206
C19
1
NA(1nF/2000V/10%/X7R/C1206)
C20
2
27pF/50V/5%/C0G/C0603
C21, C22
1
470nF/16V/10%/X7R/C0603
C28
4
2.2k/R0603
R1, R2, R3, R4
1
NA(1k/R0603)
R5
5
220R/R0603
R14, R16, R35, R37, R40
1
4.99k/1%/R0603
R19
1
1.1k/1%/R0603
R20
3
1k/R0603
R24, R41, R42
1
0R(board_mounted)
R25
2
330R/R0603
R26, R27
4
49.9R/1%/R0603
R28, R31, R32, R33
5
10k/R0603
R29, R30, R34, R38, R45
2
10R/R0603
R36, R43
1
12.1k/1%/R0603
R39
3
NA/R0603
R44, R46, R54

ESP32-GATEWAY Rev C design files

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

ESP32-GATEWAY Rev C: common questions

What microcontroller does the ESP32-GATEWAY Rev C use?

The ESP32-GATEWAY Rev C is built around the ESP-WROOM-32, from the ESP32 family.

How big is the ESP32-GATEWAY Rev C PCB?

The ESP32-GATEWAY Rev C measures 50.8 × 62.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32-GATEWAY Rev C?

83 components, from 45 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-GATEWAY Rev C design files?

From the OLIMEX/ESP32-GATEWAY 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-GATEWAY Rev C 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-GATEWAY Rev C 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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