ESP32-S3 Industrial 8-Channel Controller with WiFi Bluetooth CAN IoT RS485 and RJ45 ETH POE

ESP32-S3 Industrial 8-Channel Controller with WiFi Bluetooth CAN IoT RS485 and RJ45 ETH POE

$42.9

Brand：SpotPear

SKU：020309400000

Date：2025-08-07 11:55

Part Number：

ESP32-S3-POE-ETH-8DI-8DO

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ESP32-S3 Industrial Control Board Industrial-grade 8-channel digital input/output controller Built-in Xtensa 32-bit LX7 dual-core processor with a main frequency of up to 240MHz Onboard multiple isolation protection circuits

ESP32-S3 Industrial Control Board
Industrial-grade 8-channel digital input and output controller

Based on ESP32-S3 master control, supports Wi-Fi, Bluetooth, RS485, CAN and Ethernet interfaces

Built-in power isolation, optocoupler 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
The output adopts Darlington tube with optocoupler isolation, which has stronger driving capability, the sink current can reach 500mA, and has built-in freewheeling diode protection.
The switch input has bidirectional optocoupler isolation, supports passive and active switch input, and the digital output supports switch input linkage mode control
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 W5500 Ethernet chip, expands 10/100Mbps network connection through SPI interface
Onboard PoE module to realize Ethernet power supply function (compliant with IEEE 802.3af standard)
Onboard optocoupler isolation to prevent external circuits from interfering with the control chip
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 Micro SD card slot, can be connected to an external SD card to store pictures or files
Onboard buzzer, RGB colored lights, power indicator, RS485 transceiver indicator and CAN indicator make it easy to perceive the operating status of the device
Guide rail type protective shell, easy to install and use, safer with shell

Product Parameters

model	ESP32-S3-POE-ETH-8DI-8DO
microcontroller	ESP32-S3 (The default module is ESP32-S3-WROOM-1U-N16R8, which can be customized)
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
Network port	PoE network port, supporting IEEE 802.3af standard
Digital output	Output channels	8-way
	Input voltage range	5V ~ 40V
	Output Type	Open-drain output, output load 500mA/channel (MAX)
	Isolation Type	Optocoupler Isolation
Digital Input	Number of input channels	8-way
	Input voltage range	5V ~ 36V
	Input Type	Passive input / active input (NPN type or PNP type)
	Isolation Type	Bidirectional optocoupler isolation
indicator light	RGB	Colorful cool lamp beads, customizable display color
	PWR	Power indicator light, when connected to USB, it will light up red when voltage is detected
	TXD	Transmit indicator: lights green when data is being sent from the RS485/CAN interface.
	RXD	Receive indicator: lights up blue when data is received from the RS485/CAN interface.
Terminal power supply	Power supply range	7V ~ 36V
Product Appearance	shell	Rail type protective housing
Product Appearance	size	175 × 90 × 40 (mm)

Based on ESP32-S3

Designed specifically for the AIoT market

Equipped with an Xtensa 32-bit LX7 dual-core processor running at up to 240MHz, it boasts 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

Digital input fully isolated

Digital inputs and outputs are fully isolated, with built-in bidirectional optocouplers.

Supports both passive and active inputs (PNP or NPN).

Digital output fully isolated

Darlington tube open-drain output, single-channel sink current up to 500mA, can directly drive relays

Application Scenario

Support RS485, Bluetooth or Wi-Fi remote control

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.

Onboard PoE module

Only one network cable is needed to connect to the PoE device to achieve networking and power supply

The picture is for display only. This product does not include the switch in the picture

Example Demo

The sample code provides various combinations, including the Waveshare.cloud IoT connection demo and data visualization using the lightweight MQTT protocol.

Resource Introduction

ESP32-S3-WROOM-1U-N16R8
Powered by the ESP32-S3 series chip, the Xtensa dual-core 32-bit LX7 processor (with 16MB Flash and 8MB PSRAM).
W5500
Expand 10/100Mbps network connection through SPI interface
Reset button
Micro SD card slot
Support external SD card to store pictures and files
Power Module
Bidirectional optocoupler isolation
CAN converter chip
Onboard TVS (Transient Voltage Suppressor)
Can effectively suppress surge voltage and transient spike voltage in the circuit
Optocoupler isolation and digital isolation
Avoid external circuit interference with the control chip
RS485 conversion chip
Darlington tube
Sink current up to 500mA, built-in freewheeling diode protection
Power isolation
Provides stable isolation voltage, no additional power supply required for the isolation end
Digital output terminal
buzzer
TCA9554PWR
Expansion IO for controlling digital outputs
RTC battery connector
Power isolation
Provides stable isolation voltage, no additional power supply required for the isolation end
Digital input terminal

Power terminal blocks
Supports DC 7V~36V wide voltage range power supply
External antenna connector
SMA female antenna mount for Wi-Fi and Bluetooth wireless communications
Network port
PoE Module
PoE network port, supporting IEEE 802.3af standard
USB Type-C port
Can be used for device power supply, firmware download and USB communication
WS2812 RGB LED
BOOT button
Working indicator light
PWR: Power indicator
RXD: RS485 / CAN receiving indicator
TXD: RS485 / CAN send indicator
Pin header
Can be connected to other devices
USB Type-C external power pin header
Can be used to supply power via USB Type-C
Multifunctional terminals
Multi-function terminal level switching pin header
The communication level and output voltage on the multi-function terminal are realized by switching this terminal
CAN communication interface
Supports connection to external CAN devices
CAN matching resistor
Reserve 120R matching resistor, which can be enabled by jumper cap
RS485 communication interface
Supports connection to external RS485 devices
RS485 matching resistor
Reserve 120R matching resistor, which can be enabled by jumper cap

Shell design

DIN-rail protective housing, supports 35mm standard DIN-rail, easy to install

Product size

[] ESP32-S3-POE-ETH-8DI-8DO

To：

Dear Customers, There may be a lag of several hours before we could process your order, depending on the time difference between your location and ours. Sincerely hoping your understanding!

Email(support)

services01@spotpear.com

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Forum：

1、How do I open the box (big, with speaker)?

2、I hosed-up my boot and partition

3、Milk-V-Duo Arduino SDK configuration

4、Canbus Compatible?

5、Pi Pico

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