ESP32-S3 LoRa Development Board, Integrates LR1121 Third-generation RF Chip, Supports Sub-GHz/2.4GHz LoRa Wireless Communication, Options For Frequency Band, USB Port Adapter Board Optional

ESP32-S3 LoRa Development Board

Integrates the LR1121 Third-generation RF Chip, Options for LF/HF frequency band

Version Options

• HF version, 850 ~ 930MHz frequency
• Applicable to Europe, North America and Oceania
• ESP32-S3-LR1121-HF
• Standard version
• ESP32-S3-LR1121-HF-Kit
• ESP32-S3-LR1121-HF + USB port adapter
• board + FFC cable
• LF version, 410 ~ 510MHz frequency
• Applicable to Europe, Asia
• ESP32-S3-LR1121-LF
• Standard version
• ESP32-S3-LR1121-LF-Kit
• ESP32-S3-LR1121-LF + USB port adapter
• board + FFC cable

Supports LoRa 2.4G for global wireless connectivity with extended range and lower power consumption.

Please select the frequency version according to the local radio regulations before placing order.

Features:

• Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
• Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) to meet diverse wireless needs
• Built in 512KB Static RAM and 384KB ROM, with onboard 4MB Flash and 2MB PSRAM
• Castellated module allows soldering direct to carrier boards
• Onboard rich peripheral interfaces including 4 × SPI, 2 × I2C, 3 × UART, 2 × I2S, and 2 × ADC, etc.
• Based on the third-generation low-power LoRa transceiver LR1121
• Supports Sub-GHz (150MHz ~ 960MHz), S-band (1.9GHz ~ 2.1GHz), and 2.4GHz ISM frequency bands
• Connects to the cloud via LoRa or LoRaWAN protocol through a gateway, enabling low-power wide-area networking (LPWAN)
• Supports LoRa, (G)FSK, and LR-FHSS modulation schemes, compatible with SX126X/SX127X series for easy product upgrades
• Integrates AES-128 encryption engine to enhance data security
• Onboard TCXO crystal oscillator ensures frequency stability under extreme temperature conditions
• Suitable for IoT applications such as industrial telemetry, smart home, environmental monitoring, and remote data acquisition
• Comes with online resources and manual (example in C) for easy development and rapid application

Specifications:

• Version: ESP32-S3-LR1121-LF / ESP32-S3-LR1121-HF
• RF Chip: LR1121
• Frequency Range: LF: 410–510 MHz; HF: 850–930 MHz; 2000–2500 MHz
• Emitting Power: -9 dBm to 22 dBm (Sub-GHz); -18 dBm to 13 dBm (ISM)
• Emitting Current: 87.7 mA at 22 dBm / 52.7 mA at 13 dBm (LF); 111.2 mA at 22 dBm / 49.6 mA at 13 dBm (HF)
• Modulation: LoRa / (G)FSK / LR-FHSS
• Antenna Protection: TVS protection
• Connector: Castellated edge / solder holes, 2.54 mm pitch
• Data Rate: LoRa: 0.091–62.5 Kbps; (G)FSK: 0.6–300 Kbps
• Typical Range: Sub-GHz: 5 km; ISM: 2 km
• Spreading Factor: SF5–SF12
• Receiver Sensitivity: -127 dBm (Sub-GHz); -111 dBm (ISM)
• Antenna Interface: IPEX-1 connector
• Operating Temperature: -40°C to 85°C
• Dimensions: 21.00 × 41.00 mm

Supports C/C++

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

Compact size, Separate adapter board design

Castellated holes with immersion gold design, highly integrated packaging. Adapting USB Type-C port via adapter board, easy to embed into various product applications

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

21 × multi-function GPIO pins

The ESP32 series allows flexible mapping of peripheral signals such as UART, SPI, I2C, and PWM to almost any GPIO pin via the GPIO matrix

Comes with LoRa Antenna

connecting with the Antenna via onboard IPEX connector

Application Examples

• Combined with Meshtastic to enable Mesh networking communication

• between multiple devices without an Internet connection

Industrial environment, smart home and data acquisition

Documentations:

• Wiki

Package Includes:

• ESP32-S3-LR1121-HF
• ESP32-S3-LR1121-HF x1
• IPEX 1 to SMA adapter cable x1
• 2DB SMA antenna x1
• 2.4G antenna x2
• OPTIONAL 8PIN FFC cable ~15cm x1
• OPTIONAL Tiny-Adapter-A USB Type-C adapter board x1
• ESP32-S3-LR1121-LF
• ESP32-S3-LR1121-LF x1
• IPEX 1 to SMA adapter cable x1
• 2DB SMA antenna x1
• 2.4G antenna x2
• OPTIONAL 8PIN FFC cable ~15cm x1
• OPTIONAL Tiny-Adapter-A USB Type-C adapter board x1