I am thinking about trying to use an Attiny817 as a master and an Attiny104 as a slave as a first-time SPI exercise.
The Attiny104's datasheet seems to indicate that there is no slave select pin for the 104. Does this mean that it is always regarded as the selected slave and I'd only have to connect the power, MISO, MOSI, and CLK wires?
Thanks for the help.
Here is a link to the 104's datasheet:
and here are some screenshots from that datasheet for more information: