[Solved] Broke my arduino duo r3 within hours of ownership :(

Using Arduino Installation & Troubleshooting
#1

Sup arduino boards

I bought an arduino duo yesterday and was looking forward to playing around with it.

I did the blink led, arduino worked fine.

I had bought some ATMEGA328P-PU and wanted to use the arduino as an ISP, that's where things started going wrong.

Probably the arduino didnt like me taking the chip out a few times. I uploaded this atmega chip detector to try to identify the chip I was trying to flash with the atmega board config with 8mhz internal clock, but it never worked right.

Eventually my arduino broke. Classic errors:

avrdude: stk500_getsync(): not in sync: resp=0x00

The L led is on permanently, and pressing the reset button doesn't make that LED go off.

According to the internet, it's broken. However my computer still detectcs it as a usb to serial bridge. Is there anything I can use this for or should I just throw it in the trash by now?

#2

Troubleshoot it.
Are the 5V and 3V3 still good?
It seems like the FTDI/comms IC is still OK.
You can't/shouldn't pull/place the microcontroller with the Arduino powered.
If you put it in backward that'd biff it.
It's probably OK, but you need a bootloaded 328 or an ICSP programmer to bootload it with.

#3

Thanks for the suggestions

Yep the voltages are working.

I definitely did not move the chip with the power on, and was always careful to place it the right way around.

I have 3 atmega328p-pu chips with the arduino bootloader. all 3 of them show this behaviour. perhaps all 3 are corrupted?

is there any test i can do with the board without a chip? or any use for the board without a chip?

#4

Did you accidentally fold-under/bend a pin on insertion? Fyi I personally never advise people to use the
arduino as an isp... especially someone new. Really, just invest in a decent programmer, like usbtinyisp.

#5

Guys, I'm almost ashamed to post this.

Runaway Pancake had it. The chip was the wrong way around.

I borrowed a friend's arduino to reflash mine and noticed the chips were inversed on mine. That's when the facepalm moment happened.

Arduino is working again!

#6

Guys, I'm almost ashamed

Don't be it helps others!

Paint a white dot near Pin 1 of the controller chip.
Paint a white dot near pin 1 on the socket.

The last thing you did is where you should start.

#7