Countdown timer with pulse activation and pulse reset. Has a light indicating status (green for countdown, red for off).
I use this to monitor the input/output of factories using beacons to shut off automatically when there is no movement of items; when belts are full or when there is no input resources.
How it works
- When it reads a pulse of any signal, it starts counting down
- If it reads another pulse, timer is reset and countdown restarts
- Light indicator is green when counting down and red when it is not
- If signal is constant (i.e. belt on hold), timer will not start counting down until it reads nothing and output will remain green.
Setup
- Enter the number of seconds in the constant combinator (signal T).
- Attach a red wire to the power pole (also make sure it's powered) and attach that to a pulse signal such as a belt (on pulse) or an inserter (reading hand contents). You can also attach it to a constant signal which will only cause the countdown to start when it reads nothing.
- Attach a red wire from either of the bottom two decider combinators to whatever you wish to use it for:
- Left for green
- Right for red
- Or use a green wire on either to read both
Other Info
- Time (signal T) is based on 60 game ticks = 1 second. Signal rotates through three combinators so signal T is multiplied by 20 to account for the 3 tick cycle. *Because of the cyclical signal there is a 2 in 3 chance that, instead of resetting on pulse, it will start another timer trailing the current one. This will not affect the functionality/purpose of this device. *If input signal is constant (i.e. belt on Hold), timer will always be on since it will constantly be resetting.
If anyone has a better version of this, or if you notice an issue, please let me know. I love feedback!