Wio-S3 wireless module is embedded with the ESP32-S3R8 dual core Xtensa® LX7 MCU and the long range SX1262 LoRa chip. It supports LoRaWAN frequency plan on EU868 and US915, as well as 2.4GHz Wi-Fi and BLE 5.0 connectivity. It integrates 16MB Flash and 8MB PSRAM, making it ideal for edge AI processing. This version is equipped with an onboard IPEX antenna connector, allowing the use of an external antenna. Equipped with a TCXO, it ensures stable and accurate RF performance, which is suitable for IoT applications that require long range, high performance, and reliable wireless communication.

Features:

Note:

For Wio-S3 antenna selection, we provide the following references to help improve RF performance and ensure compliance with CE/FCC regulations:

For LoRa:

Dipole Antenna (up to 2.00 dBi): This antenna is used for Wio-S3 certification. For more information, please refer to SKU 113070002.

We also provide the LoRa Antenna Kit (SKU 110061501), which includes the dipole antenna and an SMA to I-PEX antenna cable for easier integration.

The SMA to I-PEX antenna cable is also available separately. For more information, please refer to SKU 321990397.

Wio-S3 is an ultra-compact wireless module designed for IoT devices. It combines the high-performance ESP32-S3R8 dual core processor with the SX1262 LoRa chip to provide reliable long range communication.

This module is a versatile solution for developers. It supports LoRaWAN on EU868 and US915 bands, and also provides stable Wi-Fi and BLE 5.0 connectivity. With 16MB Flash and 8MB PSRAM, Wio-S3 offers plenty of memory for edge AI tasks and complex data processing.

Wio-S3 is designed with hardware flexibility to meet various integration needs. We offer two versions of the module: one with an onboard IPEX connector and one without an IPEX connector. This provides developers with flexible options to choose the best antenna path for their hardware design.

To ensure consistent performance in different environments, it also includes a TCXO for high frequency stability.Small in size but powerful in performance, Wio-S3 module is ideal for many industries. It is perfect for applications such as smart home systems, industrial automation, smart agriculture, low-power IoT sensor hubs and so on.

With this module, you can connect to different LoRaWAN server platforms like TheThingsNetwork, Chirpstack, and others.

Note

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• Edge Intelligence & Computing: Equipped with a dual-core ESP32-S3 and larger memory (16MB Flash / 8MB PSRAM), it provides the processing power required for Edge AI and complex automation tasks that go beyond simple data sensing.
• High Performance: The transmit power up to 20.9dBm @868/915MHz; -137dBm sensitivity for SF12 with 125KHz BW.
• Wireless Connectivity: Embedded LoRaWAN protocol with support for global long range frequency plan, also supports 2.4GHz Wi-Fi and BLE 5.0.
• High Stability: Includes a built-in TCXO to ensure consistent frequency stability and reliable performance under wide temperature conditions.
• Flexible Hardware Design: Available in two versions (with or without an onboard IPEX connector), offering developers versatile antenna integration options.
• Abundant Peripherals: Equipped with a variety of GPIO interfaces including UART, I2C, and ADC, providing great flexibility for peripheral expansion.
• Easy to Use: Comes with built-in command firmware and supports custom product development using an SDK.
• FCC, CE, Telec Certified

Specifications:

• Items : Parameter : Specifications : Unit
• Core : MCU : Xtensa® 32-bit LX7  
• Storage : 16MB Flash, 512KB SRAM  
• Structure : Size : 21.6 * 16.5 * 3.3mm : mm
• Package : 38 pins, SMT  
• Electrical Characteristics : Power Supply : 3.0 - 3.6V(@3.3V typical) : V
• Minimum Sleep Current : 9.3uA : uA
• Minimum Standby Current : 1.43mA : mA
• Operation Current (Transmitter+MCU) : 113mA @16dBm in 868MHz type : mA
• 125mA @22dBm in 868MHz type
• 127mA @22dBm in 915MHz type
• Operation Current (Receiver+MCU) : 5.5mA @BW125kHz, 868MHz type : mA
• 5.7mA @BW125kHz, 915MHz type
• Output power : 20.9dBm max @868MHz LoRa : dBm
• 20.74dBm max @915MHz LoRa
• Sensitivity : @SF12, BW125kHz : dBm
• Fr(MHz) : type : max
• 868 : -137 : -137
• 915 : -136.5 : -136.9
• Harmonics(LoRa) : < -41dBm (2nd Harmonic) : dBm
• < -49dBm (3rd Harmonic) : dBm
• Interface : RFIO : 2 RF ports (Wi-Fi/BT & LoRa)  
• UART : 3 group of UART  
• I2C : 2 group of I2C  
• ADC : 2 groups of ADC, 12-bit  
• NRST : 1 Manual reset pin input  
• SPI : 1 group of SPI  
• USB : 1 group of USB  
• BOOT : 1 Manual Boot pin input  
• Working Temperature : -40℃ ~ 85℃  

Hardware Overview

Diagram

Dimensions:

Pinout:

Applications:

• Smart Agriculture: Enables remote monitoring of environmental conditions, supporting precision farming and smart irrigation.
• Industrial Automation: Supports industrial monitoring and mesh networking, improving system efficiency and reliability in complex environments.
• IoT Data Logging & Remote Monitoring: Ideal for low-power data loggers and distributed sensing applications, ensuring stable long-range communication.
• Healthcare & Wearables: Powers health monitoring and wearable devices with reliable data transmission and low-power operation.
• AIoT & Human-Machine Interface: Supports edge AI applications such as voice and image recognition, as well as touch and interactive control systems.

Documentations:

• Wio-S3 Datasheet & Specifications
• Espressif ESP32-S3R8 Datasheet
• Semtech SX1262 Datasheet
• ESP-IDF User Guide for ESP32-S3, SDK
• ESP32-S3 Test Tools and Guidelines

Package Includes:

• 1 x Wio-S3 (with IPEX antenna connector)