Welcome to Voice interaction module repository
Write the firmware
1. Connect one end of the micro USB cable to the computer, press and hold the BOOT button, and insert the other end of the micro USB cable into the module. At this time, the 5V light on the module will keep on.

2. Extract the drivers.zip file, run “InstallDriver.exe”, click 【Next】-- 【Finish】.
3. Open the device manager of the computer to see if there is a castor_libusb0 device, if not, repeat the above two steps.
4. Extract the 4002-1.0.0-burner.zip file, open usb_burn.bat to write firmware, please do not disconnect during the burning process, the window will automatically close after the burning is completed.
When updating the firmware, you need to replace the four files under the image file in 4002-1.0.0-burner.
