I am teaching myself more about microprocessors and currently working with the Attiny1616 (20-Pin VQFN) using C to make timers. My current project has me employing a switch statement to get the devices to take on a variety of different timings. By installing a 0-ohm resistor from one of the pins to ground, the switch statement knows which timing setting to employ. I am using pins PA4, PA5, PA6, PA7, PB4, and PB5. The devices also have a 7th timing setting they will use as a default if the 0-ohm resistor is not installed. I am using the <avr.sleep.h> library.