Cant program arduino using Polulu USB AVR programmer v1.2

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1

Hello, I bought polulu USB AVR programmer v1.2 and tryed to upload blink to arduino uno, but it write error:
avrdude: stk500v2_command(): command failed
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.

I tried different cables, power arduino directly from PC (without using VCC pin on programmer), another arduino, another Polulu programmer (I ordered 3 of them), but nothing works. I followed tutorials, but nothing helps. Where can be problem?
Thank you Klimš.

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2

Hi, Klims.

From your screenshot it looks like programming is failing because the target voltage is dropping to 3.87V. Could you post pictures of your setup that show all connections?

-Claire

3

Hello, now it works, I don’t know how, but yesterday I connected the programmer to the computer and it worked. Thank you.