ESP32-S3 DTU edge gateway

Bilibili display video: https://www.bilibili.com/video/BV1m4pEe2EN6/?pop_share=1

Project Brief Introduction

Based on Espressif's ESP32-S3 module, this project designed a DTU edge gateway. The high performance and low power consumption of the ESP32-S3 chip are used to build a device that can realize remote data transmission, real-time monitoring and control functions. The project is suitable for smart home, industrial automation and other fields, and supports networking and data transmission to the cloud through the built-in WIFI of the chip and the Ethernet interface of the SPI plug-in.

Core features

Edge computing

Taking advantage of the performance of the ESP32-S3, it can be redeveloped to collect data from various sensors or devices and upload it to the cloud for further processing and analysis.

Data collection is migrated to the cloud

Through the WIFI/Ethernet interface on the module, the device can be connected to the Ethernet and support the transparent transmission of data from RS485/TTL to TCP. (Other software functions are being implemented)

Serial terminal

Users can access the module terminal through the USB interface, and configure the relevant parameters of the module through the command line.

ESD protection

RS485/CAN and power interface are equipped with TVS tubes, which can prevent abnormal overvoltage damage to the circuit board.

Peripheral interfaces

24V input.

WIFI/RJ45 10M/100M Ethernet networking.

RS485 interface*2

TTL interface*1

CAN interface*1

Output interface*2

Input interface*2

Hardware solutions

Main control ESP32-S3-WROOM-1U

24V-3.3V SGM6232

RJ45 Ethernet CH390

RS485 UMW SP3485

CAN SIT65HVD232DR

Input interface: PC817 opto-decoupled isolated input

Output HF46F-024-HS1 24V relay driven by ULN2003

Original purchase link

Some originals are more difficult to purchase, you can refer to the link below to purchase:

SGM6232 

https://item.taobao.com/item.htm?_u=92dklb455582&id=583922757198&spm=a1z09.2.0.0.10d92e8dAOrZiH

HF46F-024-HS1

https://item.taobao.com/item.htm?_u=92dklb45eb26&id=566157069101&spm=a1z09.2.0.0.10d92e8dAOrZiH

RJ45 interface HR911105A

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.10d92e8dAOrZiH&id=717161946752&_u=92dklb4592b3

CH390H:

https://item.taobao.com/item.htm?_u=92dklb45f1d6&id=731963286951&spm=a1z09.2.0.0.10d92e8dAOrZiH

Power supply scheme

1. DC power supply

2. 24V switching power supply

3. Powered by 24V DC adapter

DC power cord reference purchase link (0.75 flat DC5521 female cable - 30 cm):

https://item.taobao.com/item.htm?_u=92dklb45b928&id=600480775477&spm=a1z09.2.0.0.1b8d2e8dzMqIED

24V power supply reference purchase link (Color classification: 24V2A [Big head 5.5MM] 3C certification) :

https://detail.tmall.com/item.htm?id=645461549857&spm=a1z09.2.0.0.1b8d2e8dzMqIED&_u=92dklb4518a8

Connector purchase link

3.81(for data interfaces)

https://item.taobao.com/item.htm?_u=92dklb4538cc&id=522575305943&spm=a1z09.2.0.0.4a072e8dlUj9VZ

5.08(for data interfaces)

https://item.taobao.com/item.htm?_u=92dklb4595f7&id=522579348831&spm=a1z09.2.0.0.4a072e8dlUj9VZ

Rail mounting

The 3D enclosure is perforated and installed using third-party connectors.

https://item.taobao.com/item.htm?from=cart&id=671947800707&skuId=5016817435573&spm=a1z0d.6639537/202406.item.d671947800707.406b7484wncj4i

https://item.taobao.com/item.htm?from=cart&id=660426609931&skuId=4762019120810&spm=a1z0d.6639537/202406.item.d660426609931.406b7484wncj4i

3D printed shell

6 hot melt nuts are required to print the bottom shell of the shell, and the nut purchase link is referred to below (choose M3*4*4.2 [100 pieces]):

https://detail.tmall.com/item.htm?_u=92dklb45dc00&id=598418504681&spm=a1z09.2.0.0.10d92e8dAOrZiH

Screw Reference Link (M3*5 Hexagon Flat Head):

https://detail.tmall.com/item.htm?_u=92dklb45b024&id=624811454452&spm=a1z09.2.0.0.10d92e8dAOrZiH

List of attachments

Shell file

Display pictures