I need a solution to use one momentary switch to switch between modes on a pump. Off (NC) | Low | High. What I mean is you push the pushbutton once to turns pump on low, push it again for high and again for off (NC). Additionally on low I'd really like the switch light to flash slow, and on high the switch light to flash fast. I've seen it done with Raspberry pi (<https://www.youtube.com/watch?v=LOwnG5Vhzcs>) but would like a simpler (maybe relay) option.