Unlock the Full Potential of Your Cardputer v1.1 The 3-in-1 RF Development Board is a professional-grade expansion module designed for IoT developers, security researchers, and electronics enthusiasts. It transforms your M5Stack Cardputer v1.1 into a powerful, portable station for radio frequency analysis and protocol study. Why Choose This Board? Standard extension modules often suffer from unstable power when high-power radio chips are active. We solved this by integrating a dedicated power management circuit (LDO + Filtering), ensuring that the AShining A01 (NRF24L01+ PA/LNA) and CC1101 modules perform reliably even at maximum output power. Key Features: * Dual-Band RF: Cover both Sub-GHz (e.g., 433MHz home automation) and 2.4GHz (e.g., Wi-Fi/BT protocols) bands. * Data Logging: Direct MicroSD recording for capturing raw signal data without needing a PC. * Educational Tool: Perfect for learning about wireless communication protocols, SDR concepts, and embedded systems. Setup Instructions (Crucial): For users utilizing the popular Bruce Firmware, simply select menu RF- Config- RF Module- CC1101, it will works.. (Detailed instructions included in the support documentation). Specifications: * Compatibility: M5Stack Cardputer v1.1 Only * Interface: Plug-and-Play Header * Chip A: CC1101 (300-928MHz) * Chip B: NRF24L01+ with PA/LNA (2.4GHz) * Storage: MicroSD / TF Card Slot Package Includes: * 1x 3-in-1 RF Expansion Board * 1x 2.4GHz Antenna * 1x 433MHz High-Gain Antenna * 1x Grove Cable Disclaimer: This product is a development tool intended for educational and legitimate research purposes only. Please comply with local radio frequency regulations.