Sierra driver


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I can't find a driver for OSX that works in Sierra.  I've located the various ch34x drivers, tried installing each but no joy.  What driver should I use?

For reference here's the driver that's recommended the most, which doesn't work for me.  Yes I followed directions, deleted old drivers, disabled SIR in recovery mode, etc.

Ben Rose

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Are you aware the USB TinyShield uses an actual FTDI chipset rather than CH34x? I don't think those drivers will work. Are you sure the system is seeing a USB device at all? Do you have any other cables or Arduino boards to test against? I think there were some issues with Sierra early on, but haven't heard much for a while. I can do some digging if you're still stuck.



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This still seems to be an issue. Im unable to get any USB connection on Sierra


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