Hello ! I was developing my project and stumbled into some trouble. Im trying to run an ATMEGA8A standalone and followed this tutorial to do it https://www.youtube.com/watch?v=62rhbh9_GKw&ab_channel=Electronoobs. He uses an arduino uno and optiboot to flash and then an usb to ttl to upload the code. Im pretty sure i successfuly installed the bootloader. When i try to upload the code, the only difference is im using a PL2303 which doesnt have a dtr pin. I saw some videos and supposedly to upload, i simply have to press a reset button i have setup when it finishes compiling. When I do this I stumble in to this error "avrdude error: bootloader might be optiboot 4.4? Please use -xbootsize=
avrdude error: unable to read signature data for part ATmega8, rc=-1
avrdude error: unable to read signature data, rc=-1
Failed uploading: uploading error: exit status 1" The video is 5 years old, could this be a problem with versions ? maybe the IDE and optiloader ? Thank you for any help!
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