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Topic: Arduino Nano stuck on uploading (Read 6405 times) previous topic - next topic

YaddyVirus

I recently bought an Arduino Nano ( a clone actually), I installed the CH340G drivers for it and got it working perfectly fine... Played around with it for a while and then kept it aside...

Now after sometime I get time to play with it again, I was actually trying to power it with my 11.1V 2200mAh 8C LiPo battery. So I plug the JST connector to the Vin and GND pin and the LED doesn't light up. I noticed that I had plugged it in the wrong way and I immediately unplugged it. Next I make another attempt and this time I plugged the pins entirely somewhere else, again I disconnect quickly. The third time I connect it properly and the power LED lights up (phew...)

Now I move on to my computer to program it but the Arduino IDE is stuck at uploading. It was working fine before, when I hit upload, the RX LED glows VERY dimly and the board just stays like that. Only the power LED glows up, not even the LED on pin 13 glows up.
Uploading to a UNO works perfectly fine.

This is the error I get after a while-

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x7d


Did I burn my board? Or is it just a bootloader issue?

Isaac96

If you reversed the input voltage, then you fried it (I think)
Vin doesn't have an input protection diode on the Uno. Can you do the loopback test?
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YaddyVirus

If you reversed the input voltage, then you fried it (I think)
Vin doesn't have an input protection diode on the Uno. Can you do the loopback test?
What's the loopback test? Also I don't think the power LED would be lit up if the board was fried

DrAzzy

#3
Aug 26, 2016, 03:58 am Last Edit: Aug 26, 2016, 03:58 am by DrAzzy
Power LED will still work if board is fried - all that means is that you've got 5v on Vcc. It's just an LED and a resistor. You can't burn it out without really working at it.

Does the L led blink when you press reset button?

Loopback test = connect TX and RX, hold down reset, open serial monitor, and type something, and confirm that it comes back to you.


Connecting power backwards will typically trash parts almost instantly. Don't do that.
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YaddyVirus

Does the L led blink when you press reset button?

No it doesn't.... That means board gone right? Damn me.

DrAzzy

It means the bootloader isn't running. In combination with other evidence, I'd say it's trashed. At least it's only a couple bucks.
ATTinyCore for x4/x5/x61/x7/x8/x41/1634/828/x313 megaTinyCore for the megaavr ATtinies - Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny breakouts, mosfets, awesome prototyping board in my store http://tindie.com/stores/DrAzzy

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