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Automotive gateway

dexus1337·automotive-gateway

Automotive gateway PCB layout, top view — open source ESP32 board by dexus1337

About the Automotive gateway PCB

Automotive gateway is an open source ESP32 PCB design by dexus1337, published on GitHub. It is a 2-layer board measuring 101.6 × 88.9 mm, with 95 components from 34 distinct parts.

Its main chip is the ESP32-WROOM-32UE, from the ESP32 family. Other key parts include the STM32F405RGTx, TJA1044GT-3, TJA1055T/3, LM2596S-5 and AMS1117-3.3. By type, the board carries 39 capacitors, 22 resistors, 11 ICs, 6 diodes, 3 inductors and 2 transistors.

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

From the project

An automotive-grade, multi-protocol vehicle network interface, Man-in-the-Middle (MitM) filter, and wireless telemetry gateway

An automotive-grade, multi-protocol vehicle network interface, Man-in-the-Middle (MitM) filter, and wireless telemetry gateway. Rather than focusing on CAN alone, this board provides full hardware integration for all three common automotive ECU communication methods: 1. High-Speed CAN (HS-CAN / CAN FD) 2. Fault-Tolerant Low-Speed CAN (FT-CAN) 3. K-Line / LIN (ISO 9141-2 / ISO 14230 / LIN 2.x)

Automotive gateway, from the project README
From the project README

Main components on the Automotive gateway

STM32F405RGTxESP32-WROOM-32UETJA1044GT-3TJA1055T/3LM2596S-5AMS1117-3.3TJA1021xT

Automotive gateway bill of materials (BOM)

95 components, 34 distinct parts.

QtyPartRefs
2
STM32F405RGTx
U1, U2
1
ESP32-WROOM-32UE
U3
2
TJA1044GT-3
U4, U5
2
TJA1055T/3
U6, U7
1
LM2596S-5
U8
1
AMS1117-3.3
U9
2
TJA1021xT
U10, U11
1
AO3401A
Q1
1
2N7002
Q2
1
Conn_01x02_Pin
J3
5
Conn_01x02_Pin
12V1, CAN-FT1, CAN-FT2, CAN-HS1, CAN-HS2
3
Conn_01x05_Pin
ESP_FLASH1, STM_FLASH1, STM_FLASH2
2
Conn_01x02_Pin
JP-CAN-HS1, JP-CAN-HS2
1
Conn_01x02_Pin
K-LINE1
1
MMSZ12T1G
D1
1
SS34
D2
2
BAT54C
D3, D4
1
SMCJ24CA
D5
1
LED_RGBA
D6
2
~
FB1, FB2
Show 14 more
QtyPartRefs
1
33-68 uH
L1
22
100nF
C1, C2, C3, C4, C6, C7, C15, C16 +14
2
220uF
C5, C32
4
5.6nF
C8, C9, C10, C11
4
2.2uF
C12, C13, C20, C29
1
100uF
C14
3
1uF
C25, C28, C34
2
4.7uF
C26, C27
1
10uF
C33
4
560
R1, R2, R3, R4
2
120
R5, R6
2
100k
R7, R13
11
10k
R8, R9, R10, R11, R12, R14, R15, R16 +3
3
1k
R20, R21, R22

Automotive gateway design files

The KiCad project lives in the dexus1337/automotive-gateway repository on GitHub; these links point at the commit this page was built from.

Automotive gateway: common questions

What microcontroller does the Automotive gateway use?

The Automotive gateway is built around the ESP32-WROOM-32UE, from the ESP32 family.

How big is the Automotive gateway PCB?

The Automotive gateway measures 101.6 × 88.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Automotive gateway?

95 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the Automotive gateway design files?

From the dexus1337/automotive-gateway repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Automotive gateway design in my own project?

The repository has no license, so all rights stay with dexus1337. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Automotive gateway 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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