Stock Fuse Settings Incorrect? [solved]

[davegravy]

I hooked up my stock moteino to my rpi via the GPIO pins as per this guide:

https://learn.adafruit.com/program-an-avr-or-arduino-using-raspberry-pi-gpio-pins/configuration

avrdude is telling me the fuse settings are

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Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f
avrdude: safemode: lfuse reads as DE
avrdude: safemode: hfuse reads as DC
avrdude: safemode: efuse reads as 5

avrdude: safemode: lfuse reads as DE
avrdude: safemode: hfuse reads as DC
avrdude: safemode: efuse reads as 5
avrdude: safemode: Fuses OK (E:05, H:DC, L:DE)

avrdude done.  Thank you.

The extended fuse is supposed to be FD however. Is avrdude lying to me, or does my moteino have incorrect fuse settings?

[Felix]

It's not lying. The 0x05 is equivalent to 0xFD. When the fuses are set via AVRISP the extended fuse might actually be read as 0x05. In fact if if I write 0x05 it reads back as 0xFD in avrstudio. So what you see is ok.

[steve v]

Any recommendations for a fuse programmer Device  ( Bus Pirate or others ?  )   that works well with a 3 Volt Moteino ?,  I want to change the BOD from 2.7 to 1.8V  probably using AVRDUDE

[jhoward88]

I'm also looking for a way to change the fuse settings on a moteino.  I tried it with a raspberry pi using the gpio pins, but haven't been able to get a new setting to stick using avrdude.  It seems to change it  and then says it is verifying and changes the setting back to the original.

Avrdude works fine to upload a compiled sketch via the gpio pins so I do have a connection to the Moteino.

Is there a way to use an Arduino uno to change the Moteino fuse settings ?  I see breadboard examples to program the ATMega328 DIP chip, but no examples of programming an actual Moteino or other mini board.

-Jerry

[gurari]

Any recommendations for a fuse programmer Device  ( Bus Pirate or others ?  )   that works well with a 3 Volt Moteino ?,  I want to change the BOD from 2.7 to 1.8V  probably using AVRDUDE

I'm using this programmer: https://www.olimex.com/Products/AVR/Programmers/AVR-ISP-MK2/open-source-hardware with Atmel Studio and all is working pretty well.
I wan't able to find AVRISP mkII in my country so I bought an alternative and I'm very happy with it.