How to ensure gpio is low after deployment or nodered start

General
1

Hi

I have an injection - timestamp to set GPIO to low
but it is always high after a deployment or restart

i did read: but did not "understande" the solution
https://discourse.nodered.org/t/rpi-gpio-in-node-always-incorrect-first-read-after-boot/26339/21

to ensure GPIO low I did

[{"id":"33e87854.1286d8","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"dc3f7bc.3f76488","type":"rpi-gpio out","z":"33e87854.1286d8","name":"Giandel_low_init","pin":"40","set":true,"level":"0","freq":"","out":"out","x":460,"y":200,"wires":[],"icon":"node-red/light.svg"},{"id":"a88dfb2d.a449a8","type":"inject","z":"33e87854.1286d8","name":"gpio_low_p40","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":230,"y":200,"wires":[["dc3f7bc.3f76488"]]}]

thanks for guiding

BR T

PS. Looks like I made an error using same GPIO parallel. and not all where initialized with low.

2

Is it all working now?

The link you posted was about a bug in the GPIO In node that was fixed a year ago. I think you are using GPIO Out so it is irrelevant anyway.

3

Hi Colin,

I think it is working now.
as I added in first comment, I deleted duplicate GPIO Nodes and checked the initilized box and set to low.

thanks

4

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.