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Topic: USB 2.0 - serial Driver Unavailable (Read 113 times) previous topic - next topic

VigneshDino

Unable to update driver automatically, also manually i have arduino UNO R3 SMD Type   

pert

We need to know which USB to TTL serial chip is on your Uno. The model number will be written on the largest black chip near to the USB jack. It should say either CH340 or MEGA16U2.

Erik_Baas

I'm having the same problem: Windows 7/64 wants to install "USB2.0-Serial" but cannot find it anywhere (and neither can I). My Uno has the CH340G chip.

Erik_Baas

I found drivers for the USB chip (CH340G) on http://domoticx.com/ch341-usb-serial-drivers-windows/ and now my Uno works!  :-)

pert

I'm glad you found a solution. For other people with the same problem who find this thread, my recommendation is to always download the official CH340 driver from the manufacturer's website:
http://www.wch.cn/download/CH341SER_ZIP.html

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