User configuration file is „/Users/rudirahmadi/.avrduderc“ System wide configuration file is „/Users/rudirahmadi/Desktop/Arduino.app/Contents/Java/hardware/tools/avr/etc/nf“ Users/rudirahmadi/Desktop/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/Users/rudirahmadi/Desktop/Arduino.app/Contents/Java/hardware/tools/avr/etc/nf -v -patmega328p -carduino -P/dev/cu.wchusbserial1420 -b57600 -D -Uflash:w:/var/folders/n2/r61l7hxs4mg2rznxcb4qw05m0000gn/T/build5edb31706df3d15d2d24f9876b49c432.tmp/Blink1_4.ino.hex:iĪvrdude: Version 6.0.1, compiled on at 16:30:25 Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Sketch uses 1,042 bytes (3%) of program storage space. after installing the driver, el capitan manage to recognise the nano at /dev/cu.wchusbserial1420 but when i try to upload the sketch i got :Īrduino: 1.6.11 (Mac OS X), Board: „Arduino Nano, ATmega328“ On a Windows box however, they all work flawlessly.īottom line: At least on some mac hardware this chip is unusable I tried multiple boards, all with the same result. If I try plugging and unplugging the device long enough, dmesg comes up with a „permanent usb enumeration error“, after which the driver is completely silent and I have to reboot. So you have to be lucky for the usb subsystem to see it _and_ for the driver to initialize it correctly, which almost never works. In fact, the usb id of the device sometimes jumps in the system monitor. Even the wch_usb_start output is not shown every time. I got it working once, but after that no luck. The driver is correctly installed and the kext is loaded.ĭmesg output suggests that the driver is at least doing something, once I plug a board in:ġ 0 wch_usb: configDMM – find the config interface numbers I tried this for hours but I can’t get it to work. If you have problems with the driver using the latest OSX High Sierra please refer to the KB Article:

Easiest way is the terminal here: sudo cp /Library/Extensions/usbserial.kext /System/Library/Extensions You can try copying the usbserial kext to the folder /System/Library/Extensions. Little hint that Altais posted in the comments if it does not work correctly.

Until it is available on the Winchiphead Website you can download the driver package here (Updated ): Now it should be possible to use Arduino’s equipped with that without any problems under Mac OS 10.9 to mac OS 10.13 (High Sierra).įor High Sierra you must allow the driver to load in the Security & Privacy Settings you will be asked for it once you plug in a device with this serial chip, Thanks to Robin for this info. I just received a signed driver by Winchiphead for their USB Serial bridge CH340.

Zhiyun ch341ser usb driver mac