Arduino Uno r3: Cannot upload sketches over bluetooth from my Raspberry Pi 3b


hello everyone,

this first arduino project , far has been going pretty smooth. 

i'm using hc-05 bluetooth module connected arduino inland uno r3 w/ atmega328.  i  able load sketch on usb , run successfully. @ point, run python script on raspberry pi receives sensor data bluetooth module.  of worked without hitch.

now trying send sketch raspberry pi arduino wirelessly on bluetooth.  i've changed properties file serial.port=/dev/rfcomm0

also i've bound mac address bluetooth module (hc-05) rfcomm0.  able confirm under /dev/rfcomm0.

now, when try load sketch given 2 errors:


             avrdude stk500_getsync() not in sync resp=0x00
             stk500_recv(): programmer not responding

i receive these 2 error in order, sketch makes 5 attempts connect before stops responding.

i've been looking around online , far haven't been able find useful.  currently, i've tried create rfcomm.conf file hasn't changes anything. 

rfcomm.conf

rfcomm0 {
    # automatically bind device @ startup
    bind yes;

    # bluetooth address of device
    device xx:xx:xx:xx:xx:xx;

    # rfcomm channel connection
    channel 1;

    # description of connection
    comment "example bluetooth device";
}

currently other device device have connected pi logitech wireless keyboard/touchpad combo.   i have tried press reset button while loading sketch, not seem have effect on issue. 

thanks help.

how bluetooth device connected arduino?

what, if anything, did arduino have connect bluetooth device in order send data pi?


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