# How to use oled node

**URL:** https://discourse.nodered.org/t/how-to-use-oled-node/5423
**Category:** General
**Created:** [2 December 2018 22:37 UTC](https://discourse.nodered.org/t/how-to-use-oled-node/5423 "2018-12-02T22:37:01Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![kenkoknz](https://avatars.discourse-cdn.com/v4/letter/k/58956e/32.png) [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)
#### Post date: [3 December 2018 00:54 UTC](https://discourse.nodered.org/t/how-to-use-oled-node/5423/3 "2018-12-03T00:54:06Z")

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Hi @knolleary  
Firstly, really appreciate such quick response, as I live in NZ, I tought it is middle of the night elsewhere in the world and everyone is asleep when I posted.

This is magic! I ve spent the last two days searching the internet, but getting frustrated and more confused. Your advise is invaluable for a beginner like me and the best way to learn is by example (as shown by you). One example worth a thousand words.

I used the change node and hey presto it works.  
I think I did try the change node before with the same json object, but I think I used "json" instead of "expression type". Have to admit I do not quite understand jsonata.

Also tried the function node and also works, it makes sense.

Do not quite understand the template node and why {{ }} the payload.

Thanks again.

Ken Kok  
NZ

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