# Attiny85 upload error with tiny avr programmer

**URL:** <https://community.sparkfun.com/t/attiny85-upload-error-with-tiny-avr-programmer/44568>\
**Category:** Development Tools\
**Created:** [October 13, 2022, 10:39am UTC](https://community.sparkfun.com/t/attiny85-upload-error-with-tiny-avr-programmer/44568 "2022-10-13T10:39:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Christoskag](https://avatars.discourse-cdn.com/v4/letter/c/71e660/32.png) [@Christoskag](https://community.sparkfun.com/u/Christoskag)\
**Post date:** [October 13, 2022, 10:39am UTC](https://community.sparkfun.com/t/attiny85-upload-error-with-tiny-avr-programmer/44568/1 "2022-10-13T10:39:18Z")

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I try to upload a “blink” sketch and i getting a error message :

"avrdude: intitialization failed, rc=-1

Double check connections and try again, or use -F to override this check."

I use pgm-11801 tiny avr, attiny85,ide 1.8.xx or 2.0 . The drivers is ok . I choose attiny - attiny85 -1Mhz internal- usbtinyisp.

Sorry for my bad English.

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**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [October 13, 2022, 8:22pm UTC](https://community.sparkfun.com/t/attiny85-upload-error-with-tiny-avr-programmer/44568/2 "2022-10-13T20:22:24Z")

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check out [https://learn.adafruit.com/usbtinyisp/help](https://learn.adafruit.com/usbtinyisp/help) and [https://forum.arduino.cc/t/solved-avrdu … c-1/242036](https://forum.arduino.cc/t/solved-avrdude-initialization-failed-rc-1/242036) for tips