mblockでのarduinoへのアップロードエラー

stk500_rev()の下記エラーが出てアップロードできない場合の解決方法の１つを記載。

C:\Program Files (x86)\mBlock\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\mBlock\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM6 -b57600 -D -Uflash:w:C:\Users\tsuyo\AppData\Local\Temp\build7167667021832597049.tmp/project_Demo_Avoid_Obstacle7_4.cpp.hex:i 

avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\mBlock\Arduino\hardware\tools\avr/etc/avrdude.conf"

         Using Port                    : COM6
         Using Programmer              : arduino
         Overriding Baud Rate          : 57600
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xa6
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xa6
avrdude: stk500_recv(): programmer is not responding

##原因
arduinoのアップロード速度の違い
旧arduino nano: 57600 bps
新arduino nano: 115200 bps

##対策
下記ファイル内のupload.speed(146行目)を57600から115200に変更
\Program Files (x86)\mBlock\Arduino\hardware\arduino\avr\boards.txt

Arduino Nano w/ATmega328(140行目以降)

修正前
nano.menu.cpu.atmega328.upload.speed=57600

修正後
nano.menu.cpu.atmega328.upload.speed=115200