Hi, i want to turn on a led (gpio 17) for 2 seconds , then turn off for 5 seconds, and this should be repated 5 times. How can I do this with Nodes Red nodes? Many Thanks Kind Regards marc

Thanks @maku12 . Don't forget to mark your question as "solved" - if indeed you feel it is :slight_smile:

turn on then off can be done with the trigger node then stay off for a period can be done with the delay node How to repeat? You will need to store a value and then check on that value. Take a look at the "working with context" page in the docs. and create a loop by joining the output of a node …

Try doing a search in this forum on gpio, there are numerous posts on the subject.

Hi, i tried following flow [{"id":"4f99c8dc.2bfcd8","type":"trigger","z":"a8eea3bb.19802","op1":"1","op2":"1","op1type":"num","op2type":"num","duration":"3","extend":false,"units":"s","reset":"","bytopic":"all","name":"","x":761,"y":391,"wires":[["5a120861.468828"]]}] I expected that the gpio led…

i hope this works with json attached

It will work but requires more steps for anyone wanting to import your flow and also requires someone to trust as to what they are downloading as opposed to being able to see what they are copying. Which is why I linked to instructions that show you exactly what you needed to do.

ok i see, sorry. [{"id":"a8eea3bb.19802","type":"tab","label":"Flow 2"},{"id":"5a120861.468828","type":"rpi-gpio out","z":"a8eea3bb.19802","name":"","pin":"11","set":"","level":"0","out":"out","x":901,"y":517,"wires":[]},{"id":"29e4db63.8ab454","type":"inject","z":"a8eea3bb.19802","name":"","topic"…

[image] maku12: i want to turn on a led (gpio 17) for 2 seconds , then turn off for 5 seconds, and this should be repated 5 times. How can I do this with Nodes Red nodes? Create a function node with the following code: var count = 5; var tick = setInterval(tock, 7000); function tock() { …

Hi clickworkorange, great, many thanks for your help.

Loops with GPIO

General

ukmoose 17 September 2019 12:32 5

Unfortunately your flow isn't currently importable.Please read the following post How to share code or flow json and then edit the above message.

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Loops with GPIO

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