Difference between revisions of "EBC Exercise 50 Setting Up Node-Red"

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(Initial info)
 
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  bone$ '''sudo reboot'''
 
  bone$ '''sudo reboot'''
  
=== Installing on Bone ===
+
=== Accessing on the Bone ===
This install.sh file checks for Raspberry Pi, but not the Bone. There's a simple edit that can add the bone.
+
Point your browser to <code>http://192.168.7.2:1880/</code>.
  
 +
After a bit you will see the Node-Red canvas.
 +
 
 +
[[File:Node-red.png]]
  
 +
Copy the code below to the clipboard.
 +
 +
[{"id":"70fd05e2.f03d0c","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"b1dc9221.09e41","type":"gpio out","z":"70fd05e2.f03d0c","name":"","state":"OUTPUT","pin":"P9_15","i2cDelay":"0","i2cAddress":"","i2cRegister":"","outputs":0,"board":"14fb0dec.376712","x":610,"y":180,"wires":[]},{"id":"acb4df30.72216","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"1","payloadType":"num","x":370,"y":180,"wires":[["b1dc9221.09e41"]]},{"id":"35e9479e.0e2428","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"0","payloadType":"str","x":370,"y":220,"wires":[["b1dc9221.09e41"]]},{"id":"cca6a964.c0e978","type":"gpio out","z":"70fd05e2.f03d0c","name":"","state":"OUTPUT","pin":"USR3","i2cDelay":"0","i2cAddress":"","i2cRegister":"","outputs":0,"board":"14fb0dec.376712","x":610,"y":280,"wires":[]},{"id":"b9def222.f9a97","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"1","payloadType":"num","x":370,"y":280,"wires":[["cca6a964.c0e978"]]},{"id":"230706ad.dbc7ea","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"0","payloadType":"str","x":370,"y":320,"wires":[["cca6a964.c0e978"]]},{"id":"14fb0dec.376712","type":"ioplugin","name":"","username":"","password":"","boardType":"beaglebone-io","serialportName":"","connectionType":"local","mqttServer":"","pubTopic":"","subTopic":"","tcpHost":"","tcpPort":"","sparkId":"","sparkToken":"","beanId":"","impId":"","uuid":"","token":"","sendUuid":"","samplingInterval":"500"}]
 +
 +
Go to the hamburger stack to the right of the red '''Deploy''' button and select '''Import'''.  Paste the above into the window.
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[[File:Node-red-import.png]]
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Click '''Import'''.
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You should see.
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[[File:Node-red-flow1.png]]
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Try clicking on the '''1''''s and '''0''''s and USR3 and P9_14 will respond.
  
 
{{YoderFoot}}
 
{{YoderFoot}}

Latest revision as of 11:53, 27 October 2020

thumb‎ Embedded Linux Class by Mark A. Yoder


Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways.([1])

The following is based on https://groups.google.com/g/beagleboard/c/b7PZXB7JbmA/m/SEB0qTK2AAAJ.

Install

First make sure you have the current version of Node-Red.

bone$ dpkg --list | grep node-red
ii bb-node-red-installer   1.2.2-0rcnee2~buster+20201021 armhf Node-RED   installer for beagleboard.org

If yours is older do the following.

bone$ sudo apt update
bone$ sudo apt install bb-node-red-installer
bone$ sudo reboot

Accessing on the Bone

Point your browser to http://192.168.7.2:1880/.

After a bit you will see the Node-Red canvas.

Node-red.png

Copy the code below to the clipboard.

[{"id":"70fd05e2.f03d0c","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"b1dc9221.09e41","type":"gpio out","z":"70fd05e2.f03d0c","name":"","state":"OUTPUT","pin":"P9_15","i2cDelay":"0","i2cAddress":"","i2cRegister":"","outputs":0,"board":"14fb0dec.376712","x":610,"y":180,"wires":[]},{"id":"acb4df30.72216","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"1","payloadType":"num","x":370,"y":180,"wires":"b1dc9221.09e41"},{"id":"35e9479e.0e2428","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"0","payloadType":"str","x":370,"y":220,"wires":"b1dc9221.09e41"},{"id":"cca6a964.c0e978","type":"gpio out","z":"70fd05e2.f03d0c","name":"","state":"OUTPUT","pin":"USR3","i2cDelay":"0","i2cAddress":"","i2cRegister":"","outputs":0,"board":"14fb0dec.376712","x":610,"y":280,"wires":[]},{"id":"b9def222.f9a97","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"1","payloadType":"num","x":370,"y":280,"wires":"cca6a964.c0e978"},{"id":"230706ad.dbc7ea","type":"inject","z":"70fd05e2.f03d0c","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"0","payloadType":"str","x":370,"y":320,"wires":"cca6a964.c0e978"},{"id":"14fb0dec.376712","type":"ioplugin","name":"","username":"","password":"","boardType":"beaglebone-io","serialportName":"","connectionType":"local","mqttServer":"","pubTopic":"","subTopic":"","tcpHost":"","tcpPort":"","sparkId":"","sparkToken":"","beanId":"","impId":"","uuid":"","token":"","sendUuid":"","samplingInterval":"500"}]

Go to the hamburger stack to the right of the red Deploy button and select Import. Paste the above into the window.

Node-red-import.png

Click Import.

You should see.

Node-red-flow1.png

Try clicking on the 1's and 0's and USR3 and P9_14 will respond.




thumb‎ Embedded Linux Class by Mark A. Yoder