Arduino robot: upload of sketches fails

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i wonder can help, i'm stumped trying new arduino robot work expected.

when first powered up, expected out-of-the-box hello_user sketch did not run.

i've uploaded several different sketches robot_control examples, , none seem run (ide version 1.0.6, running on fedora) despite ide reporting it's "done uploading".

i've selected "arduino robot control" under tools->board , ticked /dev/ttys0 under tools->serial port.

is there expected visual confirmation on board side upload has succeeded? (e.g. blinking leds)

is there way of checking directly sketch bootloader try run? (i.e. sketch, if any, resident in memory)

does fact out-of-the-box sketch didn't run suggest unit faulty?

thanks in advance help! 

more information on issue, after enabling verbose logging, seems avrdude failing with:

"         programmer type : butterfly
         description     : atmel appnote avr109 boot loader

connecting programmer: .avrdude: send: . [1b]
avrdude: send: s [53]
avrdude: ser_recv(): programmer not responding
avrdude: butterfly_recv(): programmer not responding"

any ideas on root cause of programmer not responding?


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