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#Ch341 wdm.inf for win10 64bit driver#It appears that on several occasions, the driver is installed, but there remains a communication problem. #Ch341 wdm.inf for win10 64bit install#Install wch.cn using SETUP but first uninstall. Install Sparkfun using SETUP but first uninstall. The hardware is the cheap Mega2560 clone with the CH340G chip.Ĭould it be that an FTDI driver is needed, as per user Where do I get this driver?Īll installation is after unzipping to a folder. I get the dreaded "avrdude: stk500v2_ReceiveMessage(): timeout" from the IDE using any method. On other occasions, Windows says driver installed correctly. On occasion, Windows gives a notification that "driver not installed successfully" and the reason is "driver not found". I have tried all possible methods of installing the CH340 driver, and although by some methods both the installer and windows say "installed successfully", and the device appears proper in the Device Manager "USB-SERIAL CH340 (COM4)", the Arduino IDE always refuses to communicate with it. The driver should now install successfully. After that, the CH340 -based board should appear in the "Ports (COM & LPT)" section of the Windows Device Manager device tree as "USB-SERIAL CH340 (COMn)" and the board should show up under the Arduino IDE's Tools > Port menu.
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