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ESP32-S3 Industrial-Grade IOT RS485 CAN Communicator WiFi Bluetooth
$17.9
Brand：SpotPear
SKU：020309500000
Date：2025-08-14 17:57
Part Number：
ESP32-S3 Industrial Control Board Industrial-grade RS485/CAN Communicator Supports Wi-Fi/Bluetooth/RS485/CAN interfaces Built-in multiple protection circuits
ESP32-S3 Industrial Board
Industrial-grade RS485 and CAN communicators
Based on ESP32-S3 master control, supports Wi-Fi, Bluetooth, RS485 and CAN interfaces
Built-in power isolation, digital isolation and other protection circuits, safer, more stable and more reliable
Product Features
- Based on the ESP32-S3 microcontroller, it has a built-in Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240MHz.
- Integrated 2.4GHz Wi-Fi and Bluetooth 5 Low Energy (LE) dual-mode wireless communication for excellent RF performance
- Onboard isolated RS485 interface, convenient for external access to various RS485 Modbus industrial expansion modules or sensors
- Onboard isolated CAN interface for easy access to various CAN devices
- Onboard pin header allows connection to other devices
- Onboard USB Type-C interface, which can be used for power supply and download debugging, making it convenient for development and use
- Onboard terminal block power supply interface supports a wide voltage range of 7V ~ 36V, convenient for industrial power supply use
- Onboard RTC clock chip, supports scheduled tasks
- Onboard digital isolation to prevent external signals from interfering with the control chip
- Onboard integrated power isolation can provide stable isolation voltage, and no additional power supply is required for the isolation end
- Onboard RS485 transmit and receive indicator and CAN working indicator, convenient for sensing the operating status of the device
- Guide rail type protective shell, easy to install and use, safer with shell
Product Parameters
| model | ESP32-S3-RS485-CAN | |
|---|---|---|
| microcontroller | ESP32-S3 (ESP32-S3R8 chip by default, customizable) | |
| Wireless Communications | 2.4GHz Wi-Fi (802.11 b/g/n)、Bluetooth 5 (LE) | |
| USB port | Interface form | USB Type-C |
| Supply voltage | 5V | |
| Function | Device power supply, USB communication, firmware download, etc. | |
| Isolated RS485 communication interface | Interface form | Terminal Blocks |
| Direction control | Automatic control via master hardware flow settings | |
| Interface protection | Provides TVS tube protection, surge and electrostatic protection | |
| Matching resistor | Default is NC, 120R matching resistor is reserved, jumper cap can be used to enable | |
| Isolated CAN communication interface | Interface form | Terminal Blocks |
| Direction control | Hardware automatically determines and controls the direction of data transmission | |
| Interface protection | Provides TVS tube protection, surge and electrostatic protection | |
| Matching resistor | Default is NC, 120R matching resistor is reserved, jumper cap can be used to enable | |
pilot lamp | PWR | Power indicator light, when connected to USB, it will light up red when voltage is detected |
| RS485 | RS485 indicator light： The green light turns on when data is sent from the RS485 interface. The blue light turns on when data is sent back from the RS485 interface | |
| CAN | CAN indicator light, flashes when there is data communication on the CAN interface | |
| Terminal power supply | Power supply range | 7V ~ 36V |
| Product Appearance | shell | Rail-type protective housing |
| size | 91.6 × 23.3 × 58.7 (mm) | |
Based on ESP32-S3
Designed specifically for the AIoT market
Equipped with an Xtensa 32-bit LX7 dual-core processor with a clock speed of up to 240MHz, it offers powerful AI computing capabilities and secure encryption mechanisms. It also integrates 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication.
Onboard multiple isolation protection circuits
Multiple protections, safer and more reliable to use
Application Scenario
You can use your mobile phone or computer browser to enter the relevant web page to control the device to send data
Support Arduino, convenient for secondary development
Complete SDK and open source tutorials are provided to make it easy to get started and can be quickly embedded into applications.
Example Demo
The sample code implements a communication interface and a web page to demonstrate IoT connectivity and data visualization.
Interface Description
| Upper terminal description | Lower terminal description | |||
|---|---|---|---|---|
| Power supply terminal | Power supply positive: DC 7V ~ 36V | RS485 terminal | A+ signal pin | |
| Negative pole of power supply | ||||
| Type-C | Can be used for device power supply, firmware download, and USB communication | B- Signal pin | ||
| SH1.0 | GND | Ground wire | CAN terminal | H signal pin |
| 3V3 | 3.3V power output | |||
| GPIO2 | Expanded IO | L signal pin | ||
| GPIO1 | Expanded IO | |||
Resource Introduction
- ESP32-S3
Clocked at up to 240MHz, it features 2.4GHz Wi-Fi and Bluetooth Low Energy.
- DC-DC power modules
Power module, supports up to 3.3V 2A output
- Pin header
Other functional modules can be connected via pin headers
- Power terminal blocks
Supports DC 7V ~ 36V wide voltage range power supply
- USB Type-C port
Can be used for device power supply, firmware download and USB communication
- RTC battery connector
Connect to rechargeable RTC battery (SH1.0)
- Chip ceramic antenna
- IPEX 1st generation transposon
Can be switched to use an external antenna by unsoldering a resistor
- 16MB Flash
- Digital Isolation
Prevent external signals from interfering with the control chip
- CAN converter chip
- Working indicator light
PWR: Power indicator
RS485: Lights green when data is being sent from the RS485 interface and lights blue when data is being sent back from the RS485 interface
CAN: CAN indicator; flashes when data is being communicated on the CAN interface
- Device BOOT button
- Device reset button
- Power isolation
Provides stable isolation voltage, no additional power supply required for the isolation end
- RS485 matching resistor
Reserve 120R matching resistor, which can be enabled by jumper cap
- CAN matching resistor
Reserve 120R matching resistor, which can be enabled by jumper cap
- RS485, CAN communication interface
Supports connection to external RS485 devices and CAN devices
- RTC clock chip
PCF85063 RTC clock
- DC-DC power supply chips
- ME6217C33M5G
Low dropout LDO, current (Max) 800mA
- RS485 conversion chip
- Onboard TVS (Transient Voltage Suppressor)
Can effectively suppress surge voltage and transient spike voltage in the circuit
Shell design
Guide rail type protective shell, easy to install and use, safer with shell
Product size
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