# Cronplus timer and GPIO

**URL:** <https://discourse.nodered.org/t/cronplus-timer-and-gpio/17407>\
**Category:** General\
**Created:** [1 November 2019 10:05 UTC](https://discourse.nodered.org/t/cronplus-timer-and-gpio/17407 "2019-11-01T10:05:34Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [6 November 2019 14:01 UTC](https://discourse.nodered.org/t/cronplus-timer-and-gpio/17407/14 "2019-11-06T14:01:03Z")

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> [@fralac](#):
>
> What do you mean "what is needed to drive a pin"?

In the original thread ([I'm looking for help with my project](https://discourse.nodered.org/t/im-looking-for-help-with-my-project/16964)) you said that you were already successfully driving the LED. I presumed that the LED is connected to the pin you are trying to drive here. In that flow you must have sent messages to the gpio node to switch it on and off. You need to generate similar messages from the timer node to drive the pin. I expect it is just a matter of putting 1 or 0 in msg.payload.

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_[View the full topic](https://discourse.nodered.org/t/cronplus-timer-and-gpio/17407)._