I am looking for a very low power, small component (perhaps an arduino) that will send a pulse 3.3V logic HIGH pulse once every X seconds to another system. I want to be able to configure X (maybe a trim pot or something) based on the use case the most rapid use case would be about once per second and the slowest would be once per hour. The duration of the pulse doesn't really matter much as long as it's one second or less.
Adafruit sells an item (PRODUCT ID: 3573) based on a Texas Instruments TPL5110 chip that sort of does this but it's a timed constant HIGH signal, not a pulse. I am an electronics noob and am not sure what category of component this falls under but I have tried googling and reading tutorials on timers.