The "HW-597 driver" refers to the software required for your operating system to recognize the CH340 chipset.
VCC (5V), VCC (3.3V), TXD, RXD, GND, RTS (or CTS depending on version) hw-597 driver
* **Crucial Note**: Ensure the voltage jumper on the HW-597 is set to **3.3V** before connecting to the ESP8266, as supplying 5V can damage the module. The "HW-597 driver" refers to the software required
Features an onboard jumper/shunt to switch between 3.3V and 5V logic levels. download the latest CH341SER from WCH
Windows updates sometimes replace or block unsigned drivers. Uninstall the current driver, download the latest CH341SER from WCH, reinstall, and restart.