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Author Topic: Arduino MEGA 2560 R3 : avrdude: stk500v2_command(): unknown status 0xc8  (Read 741 times)
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hi everyone,

i'm new to this topic as i'm new to arduino.i've read a lot about it and finally i've ordered one .

i've opted for the Mega 2560 R3. so i downloaded 1.0.1 version of the arduino software from .

i installed correctly the drivers and started with the classic "Blink sketch" .

when i hit the upload button, it starts uploading then i finally have "Done uploading". it is supposed to be OK.

but as i'm suspicious by nature,i activated the verbose mode when uploading and i have this message :

Binary sketch size: 1 420 bytes (of a 258 048 byte maximum)
avrdude: stk500v2_command(): unknown status 0xc8
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.

avrdude: stk500v2_command(): unknown status 0x01
avrdude: stk500v2_disable(): failed to leave programming mode

and of course,the led doesn't blink as expected .

anyone that can help me please ???

thank you !


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