windows - avrdude: stk500_recv(): programmer is not responding When installing GRBL -

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i trying install grbl onto arduino uno without luck. every time try upload it, keep getting same error: http://i.stack.imgur.com/nulye.png

as can see, have set correct board , port. can write of examples board without issues, , have tried few other cables measure. did loopback test on it, , passed without issues.

why can not upload grbl?

running windows 7 ultimate 64 bit using latest ide

what directly flashing pre-build hex file?

just download file: https://github.com/grbl/grbl-builds/blob/master/builds/grbl_v0_9j_atmega328p_16mhz_115200_for_so2.hex (if don't have git, copy complete code make new .txt file, paste code , "save as": grbl_v0_9j_atmega328p_16mhz_115200_for_so2.hex) , uploader (xloader, may have heard that): http://xloader.russemotto.com/ open xloader , navigate hex file you've downloaded. select device dropdown (arduino uno, 328) , set baud rate 115200. select com-port you've attacehd uno (you can take @ device manager , search com-port). hit upload, double check baud rate 115200 uno).

hope helps


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