Apple tried to be smart with OS X Mavericks, developing their own FTDI drivers. Just too bad they don’t seem to work.
I have been getting nothing but “avrdude: stk500_recv(): programmer is not responding” errors when trying to upload sketches to various Arduino compatible boards.
In the end, the only thing that worked was programming the boards using a dedicated programmer (in my case an USBasp).
Some digging around forums and Apple’s support site, the following steps has solved the issue on all the OS X machines where I have tried it. In short, you need to replace Apple’s drivers with the ones from FTDI.
- Open a terminal
- cd /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns
- sudo mv AppleUSBFTDI.kext AppleUSBFTDI.disabled
- sudo touch /System/Library/Extensions
- Restart computer
- Install FTDI’s virtual COM port drivers from http://www.ftdichip.com/Drivers/VCP.htm. In version 2.2.18 this package contains two executable files, I have had success with the one named FTDIUSBSerialDriver_10_4_10_5_10_6_10_7
- Restart again (might not be needed, good practise though after installing drivers)
Voila – The Arduino IDE can now upload sketches to all boards I have tried, both with the old/legacy bootloader and Optiboot.