# Passing dropdown values to pump and solenoid using ultrasonic

**URL:** <https://discourse.nodered.org/t/passing-dropdown-values-to-pump-and-solenoid-using-ultrasonic/38506>\
**Category:** Dashboard\
**Created:** [4 January 2021 10:45 UTC](https://discourse.nodered.org/t/passing-dropdown-values-to-pump-and-solenoid-using-ultrasonic/38506 "2021-01-04T10:45:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sanket](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@sanket](https://discourse.nodered.org/u/sanket)\
**Post date:** [4 January 2021 10:45 UTC](https://discourse.nodered.org/t/passing-dropdown-values-to-pump-and-solenoid-using-ultrasonic/38506/1 "2021-01-04T10:45:11Z")

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I want to pass water level in the form of dropdown to pump,filter and solenoid using ultrasonic. Then after reaching particular input water level, pump and filter will gets automatically turn off.

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**Author:** ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Post date:** [4 January 2021 11:20 UTC](https://discourse.nodered.org/t/passing-dropdown-values-to-pump-and-solenoid-using-ultrasonic/38506/2 "2021-01-04T11:20:14Z")

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What do you mean by

> [@sanket](#):
>
> I want to pass water level in the form of dropdown to pump,filter and solenoid using ultrasonic

Please be a little more detailed. What have you tried so far? Where are you having issues?

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [3 February 2021 11:20 UTC](https://discourse.nodered.org/t/passing-dropdown-values-to-pump-and-solenoid-using-ultrasonic/38506/3 "2021-02-03T11:20:23Z")

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