Open and look under Ports (COM & LPT) . You should see "USB-SERIAL CH340 (COMx)," where x is the assigned port number. Download the CH341SER_MAC.ZIP .
Look for the (Windows) or CH341SER_MAC.ZIP (macOS). hw-417-v1.2 driver
To ensure stability and security, always download the driver from the official manufacturer (WCH) or reputable electronics hubs: wch-ic.com Open and look under Ports (COM & LPT)
Remember that the HW-417-V1.2 often has a jumper for 3.3V or 5V . While this doesn't affect the driver, it does affect whether your target microcontroller (like an ESP32) will power up or potentially fry. Look for the (Windows) or CH341SER_MAC
Many hobbyist sites like SparkFun or Adafruit host these drivers if the manufacturer's site is slow. 3. Installation Guide For Windows (7, 10, and 11) Download the CH341SER.EXE file. Unplug the HW-417 module from your USB port. Run the installer as an Administrator.
Despite the "HW-417" label on the PCB, the magic happens inside the small black chip on the board. In 99% of cases, this board uses the or CH340E chip.
Here is everything you need to know about finding, installing, and troubleshooting the HW-417-V1.2 driver. 1. Identifying the Chipset