ATtiny85 - Programming in C & Assembly

Link to circuit diagrams & assembly code:

Link to tutorial for programming ATtiny85 with Arduino Uno as ISP:

[cmdcs]

This channel has got to be one of the hidden gems of Youtube, thank you

[loumof]

This is amazing, it appeared on my recommended, it would be great having this amount of views lol

[tunglampham]

when i upload code show ( avrdude: Expected signature for ATtiny85 is 1E 93 0B
Double check chip, or use -F to override this check.
Failed programming: uploading error: exit status 1 ).how to solve it

[SamiulIslam-huut]

when i uplode code show ( errpr: A programmer is required to upload ).how to solve it

[ruffrecords]

I have watched many similar tutorials and I still do not understand why it is necessary to burn a bootloader into the ATtiny. Why not simply burn the hex file directly? There is so little code space in the ATtiny13A for example that it seems wasteful to use any for a bootloader.

[EdwardYamunaque]

Can push buttons be connected to the tm16xx integrated circuit?