ESP32-S3 1.54inch OLED

Development Board

Equipped with the LR1121 RF chip for long-range voice transmission via LoRa

Version Selection:

ESP32-S3-LR1121-OLED-1.54-HF-EN              ESP32-S3-LR1121-OLED-1.54-HF

HF version, without Lithium Batt                   HF version, comes with a 3.7V Lithium Batt

ESP32-S3-LR1121-OLED-1.54-LF-EN         ESP32-S3-LR1121-OLED-1.54-LF

LF version, without Lithium Batt                 LF version, comes with a 3.7V Lithium Batt

Product Specifications:

• Display Parameters : Operating Voltage : 3.3V / 5V : Display Panel : OLED
• Resolution : 128 × 64 pixels : Pixel Size : 0.25 × 0.25 mm
• Communication Interface : I2C : Driver IC : SSD1309
• RF Parameters : RF Chip : LR1121 : Operating Voltage : 3.3V
• Communication Interface : SPI : Modulation : LoRa, (G)FSK, LR-FHSS

Product Features:

This high-performance, highly integrated LoRa wireless communication development board designed by Waveshare, features a dual-band LoRa RF module, audio codec, and power management solution, providing a versatile platform for long-range wireless communication and voice interaction development.

• Equipped with ESP32-S3 Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
• Supports 2.4 GHz Wi-Fi and Bluetooth 5, equipped with a mini WiFi antenna, onboard 8MB PSRAM and 16MB Flash
• Onboard Core1121 dual-band LoRa module supporting Sub-GHz and 2.4GHz bands, LoRa, (G)FSK, and LR-FHSS modulation, with an integrated AES-128 encryption engine and support for analog walkie-talkie signal reception and decoding
• Onboard 1.54inch OLED display clearly shows the user interface and device status
• Integrated audio codec and power amplifier chip with dual-microphone array and echo cancellation, suitable for applications such as speech recognition and wake-word detection
• Onboard RTC chip and fuel-gauge chip for accurate timekeeping and Batt status monitoring
• Onboard 4 × programmable buttons for custom functions and device control
• Adapting 2 × 6PIN SH1.0 connectors for user customization and DIY projects
• Onboard TF card slot for data storage and expanded capacity
• Type-C port, improving device compatibility, easier to use

Application Examples:

Function Overview:

CNC Aluminum Alloy Case

Combines a lightweight design with high strength. The anodized surface offers enhanced wear and scratch protection, ideal for frequent everyday carry

LPWA Omnidirectional Flexible Whip

Antenna + Mini WiFi Antenna

The whip antenna features vertical polarization and 360° horizontal omnidirectional coverage, making it suitable for fixed wireless nodes and point-to-multipoint communication. The Mini WiFi antenna is designed for the 2.4GHz band, delivering reliable RF performance and adaptability to various environments for stable wireless communication in challenging conditions.

             Flexible Whip With                                       360° Horizontal                                      Good Gain Performance And

         Moderate Bend Tolerance                                    Coverage                                                      Low VSWR

Dual Spread Spectrum Modulation for Complex Environments

The LR1121 supports both LoRa Chirp Spread Spectrum (CSS) and Frequency Hopping Spread Spectrum (FHSS) technologies, with modulation coverage across Sub-GHz, S-band, and 2.4GHz ISM frequency bands.

ISM Band

This frequency band is globally license-free and is ideal for short-range, high-speed data transmission

Supports ESP-IDF, Arduino IDE

Comprehensive ESP-IDF and Arduino tutorials for easy learning. Facilitates secondary development and function expansion, accelerating application deployment

outline dimensions:

Resources & Services:

Documentations:

• Wiki

Package Includes:

ESP32-S3-LR1121-OLED-1.54-HF

• ESP32-S3-LR1121-OLED-1.54-HF
• Whip antenna with SMA male connector
• Mini WiFi Antenna
• OPTIONAL 3.7V Lithium Batt

                        OR

ESP32-S3-LR1121-OLED-1.54-LF

• 1 x ESP32-S3-LR1121-OLED-1.54-LF
• 1 x Whip antenna with SMA male connector
• 1 x Mini WiFi Antenna
• OPTIONAL 1 x 3.7V Lithium Batt