To ensure stability and security, always download the driver from the official manufacturer (WCH) or reputable electronics hubs: wch-ic.com
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. hw-417-v1.2 driver
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. To ensure stability and security, always download the
Click the button. A "Driver install success!" popup should appear. Plug in the HW-417. In 99% of cases, this board uses the or CH340E chip
Follow the instructions in the README file. Note that on newer versions of macOS (Big Sur and later), you may need to allow the driver in because it is a third-party kernel extension.
Ensure you have uninstalled any old or "fake" Prolific/FTDI drivers that might be conflicting with the COM port assignment.
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.