Le ESP32-S3-LR1121-LF is a cost-effective, Carte de développement de microcontrôleurs hautes performances conçue par Waveshare. Il prend en charge 2.4 Wi-Fi GHz et BLE 5, and features 4MB Flash and 2MB PSRAM, with an integrated LoRa module.
Equipped with a variety of standard interfaces, it enables rapid development of ESP32-S3-based LoRa IoT applications. Its rich features and interfaces meet the performance and power consumption requirements of applications such as IoT devices, mobile devices, and smart home systems.
Principales fonctionnalités
The ESP32-S3-LR1121-XF is built around the ESP32-S3 MCU and integrates the LR1121 LoRa transceiver, delivering longer communication range, higher reliability, and improved energy efficiency compared to traditional LoRa solutions.
With LoRa modulation, the system achieves long-distance communication, strong interference resistance, and ultra-low power consumption. When paired with a LoRa gateway, it can connect to platforms such as TTN et ChirpStack, enabling cloud integration and application development.
The board supports multi-band configuration and provides rich peripheral interfaces, making it suitable for various IoT scenarios including outdoor communication, sensor networks, emergency communication, and community networking.
Onboard Resources
- Xtensa® 32-bit LX7 dual-core processor, jusqu'à 240 MHz
- Prise en charge 2.4 Wi-Fi GHz (802.11 b/g/n) and Bluetooth® 5 (LE)
- Built-in 512KB SRAM and 384KB ROM
- Integrated 4MB Flash and 2MB PSRAM
- Castellated module design for easy integration
- Des périphériques riches:
- 4 × SPI, 2 × I2C, 3 × UART, 2 × I2S, 2 × ADC
- Integrated Semtech LR1121 low-power LoRa transceiver
- Prend en charge les sous-GHz (150–960 MHz), Bande S (1.9–2,1 GHz), et 2.4 Bande ISM GHz
- Prend en charge LoRa, (G)FSK, et modulation LR-FHSS
- Compatible avec SX126x / SX127x for easy upgrades
- Cryptage AES-128 intégré
- Onboard TCXO for stable performance across temperatures
- Suitable for industrial telemetry, maison intelligente, surveillance environnementale, et acquisition de données à distance
- Comes with C examples and documentation for rapid development
Specifications
| Paramètre | ESP32-S3-LR1121-HF | ESP32-S3-LR1121-LF |
|---|---|---|
| Frequency Bands | 850–930 MHz 1900–2100 MHz 2400–2500 MHz | 410–510 MHz 1900–2100 MHz 2400–2500 MHz |
| Modulation | LoRa, (G)FSK, LR-FHSS | LoRa, (G)FSK, LR-FHSS |
| Débit de données | LoRa: 0.091 ~ 62.5 Kbps (G)FSK: 0.6 ~ 300 Kbps | LoRa: 0.091 ~ 62.5 Kbps (G)FSK: 0.6 ~ 300 Kbps |
| Puissance de transmission | -9 ~ 22 dBm @ Sub-GHz -18 ~ 13 dBm @ ISM | -9 ~ 22 dBm @ Sub-GHz -18 ~ 13 dBm @ ISM |
| Sensibilité du récepteur | -127 dBm @ Sub-GHz (SF7, CR4/5, BW 125 kHz) -111 dBm @ ISM (SF7, CR4/5, BW 800 kHz) | -127 dBm @ Sub-GHz (SF7, CR4/5, BW 125 kHz) -111 dBm @ ISM (SF7, CR4/5, BW 800 kHz) |
| Communication Range | Sous-GHz: 5 kilomètres ISM: 2 kilomètres | Sous-GHz: 5 kilomètres ISM: 2 kilomètres |
| Facteur de propagation | SF5 ~ SF12 | SF5 ~ SF12 |
| Logic Voltage | 3.3V (level shifter required for other voltages) | 3.3V (level shifter required for other voltages) |
| Current Consumption | Émission: 111.2 mA @ 22 dBm Émission: 49.6 mA @ 13 dBm RX: 9.2 mA (Sous-GHz), 8.1 mA (ISM) | Émission: 87.7 mA @ 22 dBm Émission: 52.7 mA @ 13 dBm RX: 9.2 mA (Sous-GHz), 8.1 mA (ISM) |
| Antenna Interface | IPEX-1 | IPEX-1 |
| Antenna Protection | TVS Protection | TVS Protection |
| Température de fonctionnement | -40 ~ 85°C | -40 ~ 85°C |
| Type d'interface | Castellated / Pin Header, 2.54 pas en mm | Castellated / Pin Header, 2.54 pas en mm |
| Dimensions | 19.00 × 22.00 mm | 19.00 × 22.00 mm |
Hardware Characteristics
- Antenna Interface: IPEX-1
- Antenna Protection: TVS protection
- Température de fonctionnement: -40 ~ 85°C
- Type d'interface: Castellated / pin header, 2.54 pas en mm
- Dimensions: 19.00 × 22.00 mm
Applications typiques
- Long-range IoT terminals: agriculture, surveillance environnementale, smart metering, outdoor equipment
- LoRaWAN nodes and gateways: smart cities, industrial wireless, emergency communication
- Low-power mesh networks: zones éloignées sans couverture cellulaire
- Appareils sans fil multimodes: LoRa + Wi-Fi + Mise en réseau hybride BLE avec transmission de données locale/cloud
