Designed for the T-Display S3 Pro ecosystem, this shield integrates Semtech LR1121 multi-band RF connectivity, professional-grade audio, and tactile feedback systems into a single expansion platform. Its key feature—180-degree rotatable Sub-1G/LoRa antenna combined with 2.4GHz support (1900-2500MHz)—enables robust long-range communication for industrial IoT, smart agriculture, and asset tracking deployments.
Features
📡 Advanced Wireless Connectivity
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Semtech LR1121 Tranceiver with dedicated antenna port (180° rotation limit*)
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Dual-Band Support: Sub-1G (LoRa) + 2.4GHz (1900-2200/2400-2500 MHz)
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Optimized RF pins: , , , , , ,
🔊 High-Fidelity Audio System
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MAX98357A Class D Amplifier: , ,
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MEMS Microphone array: , ,
⚙️ Integrated Sensor & Feedback Modules
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Vibration Motor:
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RTC Circuitry: Battery-backed timekeeping
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QWIIC Ecosystem Compatibility: ,
🔋 Power Management
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RT9080 Voltage Regulator with control
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Support for , , and power inputs
Technical Specifications
| Parameter | Details |
|---|---|
| Compatibility | LILYGO T-Display S3 Pro |
| Wireless Protocols | LoRa (Sub-1G), 2.4GHz |
| Audio IC | MAX98357A (I2S Interface) |
| Control Interfaces | SPI, I2C (, ), Interrupt (, ) |
| Physical Design | Foldable antennas, 1/4" nut mounting points |
| Critical Note | ⚠️ Antenna rotates max 180° toward screen direction |
Application Scenarios
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Industrial Telemetry: Long-range sensor data collection in remote sites
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Smart Agriculture: Livestock tracking across large pastures
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Audio-Enabled IoT: Voice-controlled devices with haptic feedback
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Asset Security: Tamper detection with vibration alerts
Developer Resources
ℹ️ Product Information
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Pinmap diagrams and LR1121 library: Visit LILYGO GitHub repository
💻 Technical Support
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Submit hardware integration queries via LILYGO ESP32-S3 developer forums
What's in the Box
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T-Display S3 Pro LR1121 Shield ×1