sudo apt install build-essential git

 bash <(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered)

The script above will:

• Remove the pre-packaged version of Node-RED and Node.js if present.
• Instalará la versión actual de Node.js LTS utilizando el NodeSource. Si detecta que Node.js ya está instalado desde NodeSource, se asegurará de que sea al menos Node 8, pero en caso contrario lo dejará solo.
• Install the latest version of Node-RED using npm.
• Optionally, install a collection of useful Pi-specific nodes.
• Setup Node-RED to run as a service and provide a set of commands to work with the service.

Autoinicio en el arranque

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If you want Node-RED to run when the Pi is turned on, or re-booted, you can enable the service to autostart by running the command:

sudo systemctl enable nodered.service

To disable the service, run the command:

sudo systemctl disable nodered.service

To know more about Node-RED installation, check out the following link:  

👉 Running on Raspberry Pi   Leer >>

GPSD

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Instalar los nodos del Mapa

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Ahora, vas a instalar algunos nodos para el Widget de Mapa.

Go to the Side Tab Menu > Click on Manage Palette > Install > Type "web-worldmap" > Install the node-red-contrib-web-worldmap package:

Obtención de coordenadas GPS

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Verás que empezarás a recibir datos inmediatamente, cada segundo. Así que, si quieres controlar ese tiempo, solo tienes que añadir un nodo de retardo entre el nodo GPS del Adafruit Ultimate y el nodo del interruptor, con la configuración que quieras. Por ejemplo, intenta recibir 1 msg cada 5 segundos, y elimina los mensajes intermedios.

Añadir el nodo WorldMap

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Once you get all the GPS data, you are going to add two world map nodes so that it displays in the Dashboard correctly:

If you take a look at the node help documentation, the minimum msg.payload from the worldmap nodes, must contain name, lat and lon properties.

E.g. { "name": "John", "lat": 41.45, "lon": 1.53 }

Connect this to the world map node as shown below:

And go to your Dashboard to check your map with your location! Your flow should something be like this:

[{"id":"6e545ede.d4925","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"7a97b4c5.876cfc","type":"gpsd","z":"6e545ede.d4925","name":"Adafruit Ultimate GPS","hostname":"0.0.0.0","port":"2947","tpv":true,"sky":true,"info":false,"device":true,"gst":false,"att":false,"x":140,"y":200,"wires":[["6560f5f6.c0ed8c"]]},{"id":"6560f5f6.c0ed8c","type":"switch","z":"6e545ede.d4925","name":"","property":"payload.class","propertyType":"msg","rules":[{"t":"eq","v":"TPV","vt":"str"}],"checkall":"true","repair":false,"outputs":1,"x":350,"y":200,"wires":[["4d22a0bd.63dda"]]},{"id":"2cf3ed7c.bd6ad2","type":"ui_worldmap","z":"6e545ede.d4925","group":"88f77589.0122d8","order":2,"width":"14","height":"14","name":"Worldmap ","lat":"","lon":"","zoom":"","layer":"OSM grey","cluster":"","maxage":"","usermenu":"show","layers":"show","panit":"true","panlock":"false","zoomlock":"true","hiderightclick":"false","coords":"deg","showgrid":"false","allowFileDrop":"false","path":"/mapui","x":710,"y":120,"wires":[]},{"id":"4d22a0bd.63dda","type":"change","z":"6e545ede.d4925","name":"","rules":[{"t":"set","p":"payload.name","pt":"msg","to":"Worldmap","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":540,"y":200,"wires":[["23b5e03.345882"]]},{"id":"23b5e03.345882","type":"worldmap","z":"6e545ede.d4925","name":"","lat":"","lon":"","zoom":"","layer":"Esri Satellite","cluster":"","maxage":"","usermenu":"show","layers":"show","panit":"false","panlock":"false","zoomlock":"false","hiderightclick":"false","coords":"none","showgrid":"false","allowFileDrop":"false","path":"/mapui","x":730,"y":200,"wires":[]},{"id":"88f77589.0122d8","type":"ui_group","name":"","tab":"c4c17961.4519f8","order":1,"disp":true,"width":15,"collapse":false},{"id":"c4c17961.4519f8","type":"ui_tab","name":"Location","icon":"dashboard","disabled":false,"hidden":false}]