arduino uno connection trouble

[gurke]

Hi there,
I'm in trouble connecting to my arduino uno from raspbian jessy via arduino.
Board: Arduino Uno (cheap chinese one)
USB: ttyusb0
programmer: tried different ones
---
when connecting the arduino the arduino software recognizes the board at dev/ttyusb0, but after that i can't send code to the board. I always get:
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync()....

I read some posts that say sth like "press reset button, then upload" and so on, but that doesn't work.
What am I doing wrong?

Thanks for your help,
gurke

[DougieLawson]

Are you sure it's not appearing as /dev/ttyUSB0 (device names in Linux are CaSe SeNsItIvE, /dev/ttyusb0 <> /dev/ttyUSB0)?

[gurke]

Yes, you're right,
It's /dev/ttyUSB0

But it doesn't change anything at the moment. The arduino seems to be connected, but I can't send code to it. Why do I get this error message?

[RST8]

Yes, you're right,
It's /dev/ttyUSB0

But it doesn't change anything at the moment. The arduino seems to be connected, but I can't send code to it. Why do I get this error message?

Do you have some different USB cables you can try ? In the past I had a problem with a nano clone which had the CH340 chip on it, which just wouldn't play, despite it powering up and the COM port showing up. I tried different machines, then some different USB cables, on the 3rd USB cable all was fine and I could send it code. The USB cables that didn't work didn't show any obvious damage with other devices seemed OK, but clearly something didn't sit well with the nano.

Joe

[gurke]

Brilliant!

Thank you for the hint! It wasn't the cable at the end but the uno. Luckily I ordered 2, and the second one works fine. Strange because it shows up at the arduino program, the led's glow and blink - anyway, it's not working.
Thank you for your help!