ESP32-S3 LoRa Development Board, Integrates LR1121 Third-generation RF Chip, Supports Sub-GHz/2.4GHz LoRa Wireless Communication
NB-IoT / Cat-M / LoRa / LoRaWAN, ESP32-S3

ESP32-S3 LoRa Development Board, Integrates LR1121 Third-generation RF Chip, Supports Sub-GHz/2.4GHz LoRa Wireless Communication

€12.95 - €13.81
Frequency Version
HFLF
USB Type-C adapter board + FFC cable
IncludedNOT Included
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Details

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

ESP32-S3 LoRa Development Board, front view and features
Version Options

HF version, 850 ~ 930MHz frequency

Applicable to Europe, North America and Oceania

ESP32-S3-LR1121-HF

ESP32-S3-LR1121-HF
Standard version

ESP32-S3-LR1121-HF-Kit

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

ESP32-S3-LR1121-LF
Standard version

ESP32-S3-LR1121-LF-Kit

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.

Board specifications
  • 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

Product Specifications
Version ESP32-S3-LR1121-LF ESP32-S3-LR1121-HF
RF chip LR1121
Frequency range LF: 410 ~ 510MHz HF: 850 ~ 930MHz
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		 111.2mA at 22dBm
49.6mA at 13dBm
Modulation LoRa / (G)FSK / LR-FHSS
Antenna Protection TVS protection
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
Antenna Interface IPEX-1 connector
Operating temperature -40℃ ~ 85℃
Dimensions 21.00 × 41.00 (mm)

Supports C/C++

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

ESP32-S3 LoRa Development Board, supports C/C++

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

ESP32-S3 LoRa Development Board, separate adapter board design

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

ESP32-S3 LoRa Development Board, based on ESP32-S3 chip
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

ESP32-S3 LoRa Development Board, adapting 21 × multi-function GPIO pins

Comes with LoRa Antenna

connecting with the Antenna via onboard IPEX connector

ESP32-S3 LoRa Development Board, comes with LoRa Antenna

Application Examples

Combined with Meshtastic to enable Mesh networking communication
between multiple devices without an Internet connection

ESP32-S3 LoRa Development Board, application examples 1

Industrial environment, smart home and data acquisition

ESP32-S3 LoRa Development Board, application examples 2

outline dimensions
ESP32-S3 LoRa Development Board, outline dimensions


LoRa Module Selection Guide
product model Controller Parameters RF chip Parameters others
MCU Flash PSRAM Frequency
range		 Spreadind
factor		 Modulation emitting current Dimensions
ESP32-S3-LR1121-HF ESP32-S3 4MB 2MB 850MHz
~
930MHz
2000MHz
~
2500MHz		 SF5
~
SF12		 LoRa, GFSK, LR-FHSS 111.2mA at 22dBm
49.6mA at 13dBm		 41×21×3.2
ESP32-S3-LR1121-LF ESP32-S3 4MB 2MB 410MHz
~
510MHz
2000MHz
~
2500MHz		 SF5
~
SF12		 LoRa, GFSK, LR-FHSS 87.7mA at 22dBm
52.7mA at 13dBm		 41×21×3.2
RP2040-LoRa-LF RP2040 2MB 264KB 410MHz
~
525MHz		 - LoRa, GFSK 107mA at 22dBm 41×21×3.2
RP2040-LoRa-HF RP2040 2MB 264KB 850MHz
~
930MHz		 - LoRa, GFSK 118mA at 22dBm 41×21×3.2

* The operating voltage for the above modules is 3.3V.

Quick Overview

ESP32-S3-LR1121-HF

  1. ESP32-S3-LR1121-HF x1
  2. IPEX 1 to SMA adapter cable x1
  3. 2DB SMA antenna x1
  4. 2.4G antenna x2
  5. OPTIONAL 8PIN FFC cable ~15cm x1
  6. OPTIONAL Tiny-Adapter-A USB Type-C adapter board x1
1ESP32-S3-LR1121-HF
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ESP32-S3-LR1121-LF

  1. ESP32-S3-LR1121-LF x1
  2. IPEX 1 to SMA adapter cable x1
  3. 2DB SMA antenna x1
  4. 2.4G antenna x2
  5. OPTIONAL 8PIN FFC cable ~15cm x1
  6. OPTIONAL Tiny-Adapter-A USB Type-C adapter board x1
1ESP32-S3-LR1121-LF
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