I have, just like many of us, several RPi's scattered around. Some are placed outdoor, indoor, in the ground and up in the attic. In total I counted to 10, crazy, really tried to re-think, well some got eventually be merged but I need at least 8. So, decided to keep it as is. I really wanted to che…

Just an idea, if you want to reduce cost and overkill, you could try using arduino's instead of RPi's when you just need to turn something on/off. I use a central RPi and several arduino nano's around the house. They talk using MQTT. You can get wifi or ethernet shields - I think there are some a…

Or an even cheaper solution is the Wemos D1 Mini (ESP8266 based microcontroller) with built-in WiFi. It talks via MQTT to Node-RED really easily (if flashed with ESP Easy or Tasmota).

how do you power those if you have many of them at different locations?

[image] alphaOri: Just an idea, if you want to reduce cost and overkill you could try using arduino's instead of RPi's when you just need to turn something on/off. I use a central RPi and several arduino nano's around the house. They talk using MQTT. You can get wifi or ethernet shields - I thin…

That's a good point about getting power to the arduino's - although you'll have the same problem with the RPi's. In a couple instances, I've had to pull wire and install another outlet (i.e. for a sensor in the attic, water monitor in the crawspace, or temp/humidity sensor over my porch), but I und…

Wow, that's a great deal. I see wifi zero's are $15 now but still that beats a nano with wifi shield. Having said that, I still love a chance to do some C coding - something about programming a microcontroller in C is awesome fun... I used to be a PIC guy till arduino spoiled me :slight_smile:

@edje11 : Is your RPi monitoring system available?

Well, after thinking about it... I have decided to retire as much of my python scripting as possible over time, as I move things into node-red. Ignore the grown man crying behind the curtain... All the python I have was a real time investment... oh well. LOL.

I've just this minute (OK about 15mins) installed Node Red onto my Pi zero W. Just got to think of some uses for it now. Probably ideal for experimenting away from my production version.

I use a pizerow as my mqtt broker and in no I have it checking on my Wemos’s telling me who’s alive and what version of espeasy is installed on them

Node-RED

Node-RED Forum

RPi CPU Temperature monitoring - simple but informative

Share Your Projects

Bobo 26 June 2020 04:25 30

The answer is Node-Red Starts on RPi3+ but not on RPi Zero W

Topic		Replies	Views
New to Node Red - trying to decide which route? General	40	2222	19 May 2020
Server-Rack Monitor Share Your Projects node-red-dashboard	1	413	9 March 2024
Hardware recommendations (2022) for node red home automation server General	21	4173	24 February 2022
Raspberry pi based Industrial Automation using Node-RED platform Share Your Projects	2	1522	14 December 2020
New User, odd stiuation General	34	1480	18 May 2021

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

RPi CPU Temperature monitoring - simple but informative

Related topics