Reyax RYUW122 UART Interface 6.5 GHz & 8 GHz UWB Transceiver Module

The module uses a standard 3.3V logic UART serial interface. Connect the TX and RX pins to your microcontroller's UART port. Communication is managed via a comprehensive set of AT commands, which allow you to configure the baud rate (9600 to 115200 bps), initiate ranging sessions, set security keys, and read distance measurements. Ensure your host system's serial port is configured to match the module's baud rate setting.

Operating from a 2.4V to 3.6V supply, the RYUW122 module is designed for low-power IoT applications. While exact current figures depend on the operational mode and update rate, the module supports power-efficient cycles. For battery-operated designs, implement periodic ranging instead of continuous operation and leverage any supported sleep modes via AT commands to minimize average current draw and extend deployment lifetime.

Yes, the RYUW122 integrates AES 128 hardware encryption, which is essential for secure ranging and data transfer as per the IEEE802.15.4z standard. This prevents spoofing and ensures that distance measurements are authentic. You must configure the encryption keys via the relevant AT commands during device pairing or network initialization to activate this security layer for your asset tracking or access control system.

The module provides high-precision ranging with an accuracy of approximately 10 centimeters under line-of-sight conditions. The effective maximum range is influenced by the operating environment, antenna integration, and transmit power settings compliant with local UWB regulations. For best results, ensure a clear path between modules and calibrate the system in your specific deployment environment to account for any multipath interference or signal attenuation.