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- SKU: 33928
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ESP32-S3 LoRa LF Development Board, 410 ~ 510MHz Frequency, Integrates LR1121 Third-generation RF Chip, Supports 2.4GHz LoRa Wireless Communication
The ESP32-S3 LoRa LF Development Board is a powerful and versatile wireless solution designed for long-range, low-power IoT applications. Operating within the 410–510MHz frequency band, this board integrates the advanced LR1121 third-generation RF chip, enabling reliable sub-GHz communication alongside 2.4GHz LoRa connectivity.
Built around the high-performance ESP32-S3 microcontroller, it offers robust processing capabilities, Wi-Fi and Bluetooth support, and enhanced AI acceleration features. The combination of dual-band LoRa (sub-GHz + 2.4GHz) ensures flexible deployment across various environments, making it ideal for smart agriculture, industrial monitoring, asset tracking, and remote sensing applications.
This development board provides excellent RF performance, improved sensitivity, and low power consumption, allowing stable communication over extended distances. Its compact design and rich peripheral interfaces make it easy to integrate into custom IoT projects, while offering developers a reliable platform for prototyping and deployment.
User Manual / Datasheet / Example Codes Etc.
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
- RF chip: LR1121
- Frequency range
- LF: 410 ~ 510MHz
- 2000MHz ~ 2500MHz
- emitting power
- -9dBm ~ 22dBm at Sub-GHz band
- -18dBm ~ 13dBm at ISM band
- emitting current
- 87.7mA at 22dBm
- 52.7mA at 13dBm
- Modulation: LoRa / (G)FSK / LR-FHSS
- Connector: castellated edge / solder holes, pitch 2.54mm
- Data rate
- LoRa: 0.091Kbps ~ 62.5Kbps
- (G)FSK: 0.6Kbps ~ 300Kbps
- Typical Range
- Sub-GHz band: 5KM
- ISM band: 2KM
- Spreadind factor: SF5 ~ SF12
- Receiver sensitivity
- -127dBm at Sub-GHz band, SF=7, CR4_5, BWL=125KHz
- -111dBm at ISM band, SF=7, CR4_5, BWL=800KHz
- Operating temperature: -40℃ ~ 85℃
- Dimensions: 21.00 × 41.00 (mm)
Package Includes
- ESP32-S3-LR1121-LF x1
- IPEX 1 to SMA adapter cable x1
- 2DB SMA antenna x1
- 2.4G antenna x2
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
Dimensions
