ESP32-S3-RS485-WLED

Based on ESP32-S3, Supports Wi-Fi / Bluetooth / Isolated RS485 / Audio

Ideal For Learning And Developing WLED Smart Lighting, AI Voice Interaction, And IoT Applications

Features

• Based on ESP32-S3-WROOM-1-N16R8 module with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz
• Integrated 2.4GHz Wi-Fi and Bluetooth 5 (LE) wireless communication for wireless control, device networking, and IoT application development
• Equipped with 16MB Flash and 8MB PSRAM, providing ample storage and runtime resources for lighting effects, audio processing, and complex application development
• Onboard LED strip data output interfaces with 5V level shifting, supporting various digital LED strips for WLED, ambient lighting, and customized lighting effect applications
• Integrates an isolated RS485 communication interface for connecting sensors, PLCs, Modbus devices, and other equipment
• Onboard RS485 TX/RX status indicators for easy monitoring of data transmission and reception during debugging
• Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply is required for the isolated terminal
• Integrates the ES7210 audio ADC and ES8389 audio codec, supporting multi-channel microphone input and stereo audio output for AI voice, voice interaction, and other applications
• Onboard 3.5mm audio jack and PH2.0 4pin speaker connector for audio input and output applications
• Supports a wide input voltage range of 5 ~ 24V
• Onboard USB Type-C port for programming and debugging
• Provides multiple GPIO expansion interfaces and user buttons for connecting sensors, actuators, and other peripherals
• Supports development with ESP-IDF, Arduino, and other development environments, with example programs and development resources provided for quick setup and secondary development
• Rail-mounted protective case, easy to install, safe to use

Specifications

MODULE		ESP32-S3-RS485-WLED
MICROCONTROLLER		ESP32-S3-WROOM-1-N16R8
ANTENNA		Onboard PCB antenna
WIRELESS COMMUNICATION		2.4GHz WiFi (802.11 b/g/n), Bluetooth 5 (LE)
POWER SUPPLY SCREW TERMINAL	Voltage Range	5V ~ 24V
WLED LED OUTPUT	Maximum Output	8A (adequate heat dissipation required)
	Output Channels	2 LED outputs (GPIO2, GPIO16)
	Supported LED Strip	WS2812B / WS2811 / SK6812 / TM1814 / SM16704 / APA102 / SK9822 / single-color LED strips, etc.
	Control Method	WLED open-source firmware (Web-based control); supports color, brightness, dynamic effects, segment control, presets, and more
USB	Connector	USB Type-C
	Power Supply	5V
	Functions	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
LED INDICATORS	PWR Indicator	Red power indicator, lights up when there is USB connection and voltage is detected
	RS485 Indicators	TXD: lights up green when the RS485 port sends data RXD: lights up blue when the RS485 port receives data
APPEARANCE	Enclosure	Rail-mount protective case
	Dimensions	81.9 × 54.0 × 32.0mm

Compatible With WLED Firmware For Easy Smart Lighting Control

* for reference only, please refer to the package content for detailed part list.

Light Strip Wiring Diagram

Supports External Speakers

Features A Reserved 4pin Speaker Connector For Connecting An 8Ω 5W Speaker, Or A Speaker System Via The 3.5mm Audio Jack.

* for reference only, the speakers are NOT included, please refer to the package content for detailed part list.

Wi-Fi And BLE 5 Support

ESP32-S3 Integrates 2.4GHz Wi-Fi (802.11 B/G/N) With 40MHz Of Bandwidth Support,
Its Bluetooth Low Energy Subsystem Supports Bluetooth 5 (LE) And Bluetooth Mesh

Supports AI Speech Interaction

Allows Access To Online Large Model Platforms Such As DeepSeek, Doubao, Etc.

Supports ESP-IDF, Arduino IDE

Comprehensive ESP-IDF And Arduino Tutorials For Easy Learning. Facilitates Secondary Development And Function Expansion, Accelerating Application Deployment

Interface Description

TOP TERMINAL BLOCK DESCRIPTION			BOTTOM TERMINAL BLOCK DESCRIPTION
POWER SUPPLY TERMINAL	Power positive: DC 5V ~ 24V		RS485 TERMINAL	RS485 A+ signal pin
	Power negative
TYPE-C	For firmware download and USB communication			RS485 B- signal pin
SH1.0	GND	Ground (GND)	GPIO TERMINAL	GPIO2' (5V operating level)
	3V3	3.3V power output		GPIO16' (5V operating level)
	GPIO3	Adapting ESP32-S3 IO pin	OUTPUT TERMINAL	Output power supply positive
	GPIO4	Adapting ESP32-S3 IO pin		Output power supply negative; disabled by default
HEADPHONE JACK	3.5mm headphone jack

What's On Board

1. ESP32-S3-WROOM-1-N16R8 module
   Integrates 2.4GHz Wi-Fi and Bluetooth 5, with a dual-core processor running at up to 240MHz, 16MB Flash, and 8MB PSRAM
2. ES8389 Audio Codec
   Used for audio signal capture, processing, and output
3. ES7210 Audio ADC
   Used for microphone audio capture and audio signal analog-to-digital conversion
4. RS485 transceiver chip
5. NS4150B
   Audio power amplifier
6. Blade Fuse
7. Power supply screw terminal
   supports 5 ~ 24V wide voltage input
8. RS485 communication terminal
   for connecting external RS485 devices
9. GPIO terminal
10. Power output terminal

 

11. Dual-Microphone array
    Designed for voice capture and speech recognition applications
12. LED indicators
    PWR: Power indicator
    TXD: lights up green when the RS485 port sends data;
    RXD: lights up blue when the RS485 port receives data
13. PH2.0 4pin speaker connector
14. Headphone jack
15. USB Type-C port
    for module firmware downloading and USB communication
16. RS485 matching resistor
    Onboard reserved 120R matching resistor, enabled via jumper
17. BOOT button
    Programmable for other functions
18. RESET button
19. Digital Isolation
    for reduced interference from external signals to the control chip
20. Power isolation module

Application Scenarios

With A Wide Range Of Interfaces, The Board Can Be Used In Various Applications, Including Smart Lighting Control, Industrial Communication, Environmental Monitoring, And Interactive Audio. Reserved GPIO Pin Headers For Further Development And DIY Customization

Outline Dimensions

[] ESP32-S3-RS485-WLED

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