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Flash error: avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00 · Issue #459 · ros-drivers/rosserial · GitHub
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One solution for AVRDUDE/STK500 and Port Issues (don't know why it worked). - Avrdude, stk500, Bootloader issues - Arduino Forum
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UNO R3 + WIFI CH340G avrdude: stk500_recv(): programmer is not responding - Avrdude, stk500, Bootloader issues - Arduino Forum
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Arduino uno : issue while burning Attiny85 bootloader - Avrdude, stk500, Bootloader issues - Arduino Forum
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arduino uno - avrdude: stk500_recv(): programmer is not responding + avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x47 - Arduino Stack Exchange
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