SKU:WSAL32154

Industrial ESP32-S3 Control Board With RS485 And CAN Communication Interfaces, Supports Wi-Fi / Bluetooth, Built-in Multiple Protection Circuits

Industrial ESP32-S3 Control Board With RS485 & CAN Interfaces

Based on ESP32-S3, Supports Wi-Fi / Bluetooth, Onboard RS485 & CAN interfaces

Built-in protection circuits such as power isolation and optocoupler isolation, Safe & Stable & Reliable

Features at a glance

• Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz
• Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication, with superior RF performance
• Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors
• Onboard isolated CAN interface for easy access to various CAN devices
• Onboard pin header for connecting external devices
• Onboard USB Type-C port for power supply, firmware downloading and debugging
• Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications
• Onboard RTC chip, supports scheduled tasks
• Onboard digital isolation to prevent interference from external signal
• Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply is required for the isolated terminal
• Onboard RS485 TX/RX indicators and CAN indicator for monitoring the operating status of the module
• Rail-mounted protective case, easy to install, safe to use

Specifications

Microcontroller	ESP32-S3 (Default module: ESP32-S3R8, customizable for other modules)
Wireless communication	2.4GHz WiFi (802.11 b/g/n), Bluetooth 5 (LE)
USB	Connector	USB Type-C
	Power supply	5V
	Functions	Power supply, USB communication, firmware downloading, etc.
ISOLATED RS485	Connector	Screw terminal
	Direction control	Automatically controlled via main controller hardware flow settings
	Protection	TVS diode, surge protection & ESD protection
	Resistor	Onboard reserved 120R matching resistor, NC by default, enabled via jumper
ISOLATED CAN	Connector	Screw terminal
	Direction control	Hardware automatic control
	Protection	TVS diode, surge protection & ESD protection
	Resistor	Onboard reserved 120R matching resistor, NC by default, enabled via jumper
LED indicators	PWR indicator	Red power indicator, lights up when there is USB connection and voltage is detected
	RS485 indicator	lights up green when the RS485 port sends data lights up blue when the RS485 port receives data
	CAN indicator	blinks during data transmission
power supply Screw terminal	Voltage range	7V ~ 36V
Appearance	Enclosure	Rail-mount protective case
	Dimensions	91.6 × 23.3 × 58.7 (mm)

Based on ESP32-S3, Designed for AIoT market

Equipped with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz, with Powerful AI Computing Performance and Security Encryption Mechanism; Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) dual-mode wireless communication

Onboard multiple isolation protection circuit

Multiple protections, more safe and reliable

Application Scenario

Allows users to access the relevant webpage via a mobile phone or PC browser to control the device and send data

Supports Arduino development

Comprehensive SDK, Dev Resources, And Tutorials To Help You Easily Get Started

Application Examples

Provides demo code for IoT connectivity by integrating communication interfaces with a web page, enabling data visualization services

Interface Description

Top Terminal Block Description			Bottom Terminal Block Description
Power Supply Terminal	Power positive: DC 7V ~ 36V		RS485 Terminal	A+ signal pin
	Power negative
Type-C	for power supply, firmware download, and USB communication			B- signal pin
SH1.0	GND	Ground (GND)	CAN Terminal	H signal pin
	3V3	3.3V power output
	GPIO2	ESP32-S3 IO pin		L signal pin
	GPIO1	ESP32-S3 IO pin

What's On Board

1. ESP32-S3 up to 240MHz operating frequency, with 2.4GHz WiFi and BLE
2. DC-DC power modulesupports up to 3.3V 2A output
3. Pin header (2.0mm pitch)for connecting to other functional modules
4. Power supply screw terminalsupports DC 7~36V wide voltage input
5. USB Type-C port for module power supply, firmware downloading and USB communication
6. RTC battery headerfor connecting rechargeable RTC battery (SH1.0)
7. Onboard ceramic antenna
8. IPEX 1 connectorfor connecting external antenna, enabled via resoldering an onboard resistor
9. 16MB Flash
10. Digital isolationprevents interference from external signal
11. CAN transceiver chip

12. LED indicatorsPWR: Power indicatorRS485: lights up green when the RS485 port sends data; lights up blue when the RS485 port receives dataCAN: blinks during data transmission
13. ESP32 BOOT button
14. ESP32 RESET button
15. Power supply isolationProvides stable isolated voltage, no extra power supply is required for the isolated terminal
16. RS485 matching resistorOnboard reserved 120R matching resistor, enabled via jumper
17. CAN matching resistorOnboard reserved 120R matching resistor, enabled via jumper
18. RS485 & CAN communication terminal for connecting external RS485 and CAN devices
19. PCF85063 RTC chip
20. DC-DC power chip
21. ME6217C33M5GLow dropout regulator, 800mA output (Max.)
22. RS485 transceiver chip
23. TVS diodeEffectively suppresses surge voltage and transient spike voltage in the circuit

Enclosure Design

Protection case with 35mm rail-mount support, easy to install, safe to use

Outline dimensions

Support Batch Customization

Support software and hardware customizationIncluding hardware interface, LOGO, label, case and web page, etc.

Resources & Services

Wiki:www.waveshare.com/wiki/ESP32-S3-RS485-CAN

Selection guide

Model	DI	DO	Relay	RS485	CAN	network port	PoE	RTC	buzzer	TF	antenna	PIN header
ESP32-S3-Relay-6CH	-	-	6	√	-	-	-	-	√	-	√	40PIN header, compatible with Raspberry Pi Pico interface, 2.54mm pitch
ESP32-S3-ETH-8DI-8RO	8	-	8	√	-	√	-	√	√	√	√	28PIN header, 2.54mm pitch
ESP32-S3-POE-ETH-8DI-8RO	8	-	8	√	-	√	√	√	√	√	√	28PIN header, 2.54mm pitch
ESP32-S3-ETH-8DI-8RO-C	8	-	8	-	√	√	-	√	√	√	√	28PIN header, 2.54mm pitch
ESP32-S3-POE-ETH-8DI-8RO-C	8	-	8	-	√	√	√	√	√	√	√	28PIN header, 2.54mm pitch
ESP32-S3-POE-ETH-8DI-8DO	8	8	-	√	√	√	√	√	√	√	√	8PIN screw terminal, 5.0mm pitch
ESP32-S3-Relay-1CH	-	-	1	√	-	-	-	√	-	-	√	20PIN header, 2.54mm pitch
ESP32-S3-RS485-CAN	-	-	-	√	√	-	-	√	-	-	√	20PIN header, 2.54mm pitch

Lieferumfang

1. ESP32-S3-RS485-CAN x1
2. SH1.0 4PIN cable ~150mm x1
3. Screwdriver x1

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• Tags: Brand_waveshare,  Cat_board,  Cat_communication,  Cat_iot,  Cat_kit,  Compat_arduino,  Compat_esp32,  Compat_raspberry_pi,  Iface_can,  Iface_rs232,  Iface_rs485,  Iface_wifi,  Platform_arduino,  Platform_esp32,  Platform_raspberry_pi,  Sub_bluetooth,  Sub_converter,  Sub_dali2,  Sub_esp32_s3,  Sub_industrial_controller,  Sub_short_range_wireless,  Sub_wired_communication