RPICT and Node-Red hosted on Raspberrypi: Difference between revisions

Revision as of 14:11, 30 May 2019

Make sure any program using the ttyAMA0 serial is off (emonhub, python programs etc).

We assume a fresh install of Raspbian in this document.

Make sure you have followed the steps to setup the serial port first. Howto setup Raspbian for serial read

Install Node-Red as follow

sudo apt-get install nodered

Start Node Red

node-red-start

You will see a similar message to this below at the top

Once Node-RED has started, point a browser at http://192.168.1.206:1880

Open a browser and go the indicated address. http://192.168.1.206:1880 for us here.

How to setup Node-Red depends on what the user wants to achieve. We will show a simple example here how to split the data from the serial string.

Start to build a flow with a Serial Input a Function block and Debug output.

Now setup the serial port as shown below:

@@ Line 27: / Line 27: @@
 [[File:Rpictnodered_002.png]]
-[[File:Rpictnodered_001.png]]
-[[File:Rpictnodered_003.png]]
+Now setup the serial port as shown below:
+[[File:Rpictnodered_001.png| 300px]]
+[[File:Rpictnodered_003.png| 300px]]