Node red minimun configuration

Dear Friends,

I am Varun and very much new to the Node-red. I am looking for a board which has the following capacity

  1. It should have 4g mobile connectivity
  2. We should be able to install Node-RED on the board.

Could you please recommend some board which I can use for my project Which has the above-said capability.

Thanks & Regards
Varun

Hi Varun, welcome to the forum.

I'm not familiar with boards that have 4g built in I'm afraid as I don't have that need but I expect they exist. Otherwise, there will be addons for many other boards.

I'd say that the absolute minimum general spec you need for running Node-RED in general will be something like:

  • At least as powerful as a Pi Zero or 1st gen Pi - however, they are slow to compile some dependencies.
  • At least 512MiB of memory. You could probably get away with 256MiB as well but may get issues with larger implementations of Node-RED even for home use.
  • Running a reasonably standard form of Linux (something based on Debian is easiest since Dave's install script is likely to work)
  • A few GiB of storage - the format doesn't really matter that much unless you need the performance. Even the standard Pi SD-Card type is sufficient for most uses.

I ran Node-RED off a 1st gen Pi with that spec for quite a while. For the longest time, my main device has been a Pi2. That works very well and is completely stable - but, bear in mind that I just use it for Home Automation. Even so, it runs NR, Mosquitto, InfluxDB, Telegraf and Grafana. I started to move to a Pi3 which, with its additional memory, is capable of running the above plus the Java-based Wi-Fi controller for my Unifi AP's.

Without knowing more about what you are trying to do with your board, it would be impossible to say much more really.

Of course, assuming you want to start adding other services, you will start to feel the

Thanks a lot for your response.

I am trying to send a signal from my Node-red application (using MQTT) to Node-red application running on board. Which, in turn, sends a signal to the controller to turn off the water dispensing system.

I want to establish a connection between the application program ruining in the cloud with the board using GSM as WiFi connectivity is not good there.

Thanks & Regards
Varun

Hi

I have done something similar and I used an old Android phone. I created a mobile hotspot in Android and then the Pi connects to the hotspot to give access to a cloud MQTT broker

Thanks for your feedback. we are installing it in an open space and we are managing it remotely. So I am thinking of SIM card solution :frowning: