OpenSprinkler Forums OpenSprinkler Unified Firmware cant upgrade to 2.19(4) Reply To: cant upgrade to 2.19(4)



I found a solution. you need to use newer avrdude version.
I useed that one and it works.
You only need to change the command a bit as the conf file is in that zip on different folder.

./avrdude -C ../etc/avrdude.conf -c arduino -p m1284p -P /dev/tty.wchusbserial1410 -U flash:w:os_219_4.hex

maybe Ray can change the documentation for FW updates on MAC and include that informations.