Having just recieved my ‘Lynxmotion AL5D PLTW Robotic Arm’ I found that the ‘SSC-32U servo controller board’ did not work via the USB, using the ‘FlowArm PLTW’ software.
Being a retired computer engineer, I did some reserch and found that the ‘usb’ on the SSC-32U servo controller board’ requires the windows usb driver to be the ‘FT232R USB UART’ Driver.
The FTDI Virtual COM Port drivers (for various operating systems) on the manufacturer’s official page: https://ftdichip.com/drivers/vcp-drivers/
The link is on page 20 of SSC-32U the user guide:
Page 45 of the AL5D-PLTW guide:
If there’s a manual where we missed adding the link, we’ll certainly add it.
Normally Windows 7 would detect the FTDI chip and install the driver automatically. Not sure why it did not detect and install the drivers automatically in your case.