- Supports USB to R8485 communication, enabling easy integration and testing of R8485 based projects via a standard USB interface. - Adopts original FT232RL for high-speed, stable, reliable, and compatible USB-to-serial communication with R8485. - On-board TVS transient voltage suppression tube provides effective suppression of surge and transient spike voltages, delivering lightning protection and anti-static protection for the circuit. - Built-in self-recovery fuse and protective diode ensure stable current and voltage output, prevent over-current and over-voltage, and enhance overall robustness. Use scenarios: - Prototyping and development of R8485 based devices that require USB connectivity and reliable serial communication. - In field equipment or lab test setups where USB communication with R8485 is needed and circuit protection against surges is important. - Embedded or automated test rigs that require stable power and voltage regulation for R8485 modules, with protection from transient events.