New to NodeRed and not a programmer, trying to setup a flow where after polling the temperature and humidity sensors, and knowing the current state of the AC, I will turn on the AC if the temp it >=28, but only if the AC is not currently "on" turn on the AC if the temp >= 26 AND humidity is >=…

Take a look at this flow from the cookbook https://cookbook.nodered.org/basic/route-on-context which should explain the general idea. You can also do it in a function as described in the docs

ukmoose, thanks! I've got this step, 2 switch nodes, one for temp and one for humidity, but what node would I then use to combine the output of the 2 switch nodes (temp and humidity), along with the current state mode of the AC, to then send a payload to the call service node to turn on the AC?

To join temp and humidity i would look to use the JOIN node, there’s an example in the cookbook something along the lines of create a single flow from separate streams of messages

Hi. There are many ways to skin this cat. For example you could store each value in flow or global context. You could use join nodes. You could use function blocks etc. What I'd suggest is just play, have fun and learn. Drop an inject node (to generate test data). Drop a change node and debug no…

Hey Steve-Mcl, thanks! This was my first flow using node-red...ever, it solved a problem I had so it was a bit challenging. I suspect I should be using flow/global variables, but that's beyond me at this point...maybe in the future. I ended up doing the following and it worked. I really like nod…

@bwanajag - just a point about your flow. In the node is AC on? you exit from the top to turn on the AC, so I would assume thatt that is the NO response. On the node is AC off? you also exit from the top to turn off the AC. So you have similar nodes but the first ones top exit point is resulting fr…

This is an example of a lack to logical sense on my part (and the fact that I'm inept at programming). To me, they are both a "NO" condition. If is AC on? is "NO", then turn it on. Likewise, if is AC off? is "NO", then turn it off. So both would exit from the top. This actually brings up a topi…

Temp, humidity and current AC state flow

General

zenofmud 28 May 2019 08:28 9

The fact you waited 2 months to reply means I’ve completely forgotten this issue. If you want help, please provide your flow BUT first read How to share code or flow json

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Temp, humidity and current AC state flow

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