Unable to program Ocean Controls KTA-223

Development Boards Arduino
1

Hey, anyone who uses this board,

I just got three KTA-223 “Relayduino” boards from SF and they do not program. These are basically Arduino Duemilanova boards with the Arduino bootloader on them and KTA custom firmware. I set the auto-reset jumper and still the compiler says that “avrdude.exe: stk500_getsync(): not in sync: resp=0x00”, like the board isn’t listening. Previous rev 12 boards that I have program fine, so my setup is good. These are rev 14 boards.

Any suggestions?

Thanks,

DLC

2

Thank you for your forum post dlc!

I suspect Ocean Controls has changed something in their bootloader or may have some fuse settings wrong. We’re looking into this now and will update when we have more information. :slight_smile:

3

OK, it turns out that Ocean Controls did ship a few units with the wrong fuse settings. Using a AVR programmer, change the fuses to the following values and that will restore the ability to program the KTA-223 via Arduino.

LOW  = 0xFF
HIGH = 0xDA
EXT  = 0xFD

That should restore the ability to re-program the KTA-223 through the Arduino IDE.