Auto retriggering timer for between 1-15 seconds (1, 10 & 15) and between 200-1000 Cycles ( 200, 800 &1000)

[DaveX]

I'd attach a ladder of resistors and an analog input to the rotary switch like:

per:

Arduino program to control 1 pole 12 pin rotary switch

What switch? please post a link to the data sheet. If you only want to use a single Arduino pin, then you could add additional resistors and create a voltage divider circuit to use like this... [image] Then connect to an analog input.

Then read analogRead() it, and do some integer arithmetic to get a 0-4 (maybe mode = (analogRead(modePin)+102)/226 ? ) and use that to choose the mode.

For the different blink timers, I'd try an array of struct like one of these LED blinker solutions:

Flashing multiple LEDs at the same time

Introduction A common question is to ask how to flash 2 (or more) LEDs at the same time. Typically the person asking will be using delay and will be experiencing the main problem with delay: it blocks and stops anything else from happening. This tutorial contains several different approaches to the problem of flashing 2 or more LEDs at the same time with independent timing for each LED. The basic principles for each can all be adapted for other situations requiring multiple timers working inde…

but and add in an extra variable for "count".

Your box looks like it has a couple buttons for start &stop an you could use one of those to reset the count.

Since there are several analog inputs on an uno, you could handle all the knobs and buttons on that box and more if you like.