Living Legend

made with the ArcGIS Maps SDK for JavaScript, Node.js and ESP32.

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Send the map legend to a RGB LED strip like here!

This repo

Run a small Node.js application on localhost that receives data from the map, transforms it into Artnet and sends it over to the ESP32.

Enter IP of your ESP in the package.json start script or better, create your own script!

"start": "node server.js -a <ESP_IP> -p 9000 -v"

Other repos needed to make sense of this

esp32_artnet

Use this ESP32 firmware to receive data from artnet-http and put it on your LED strip via FastLED.

jssdk-artnet-webclient

This is the webmap with logic for legend2LEDs.

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artnet-http bridge

  Bridges HTTP POST requests to ArtNet UDP 

Options

  -a, --artnet_host string   IP address of the ArtNet server.            
  --artnet_port number       ArtNet UDP port (6454 is standard.)         
  -p, --listen_port number   HTTP port to listen on.                     
  -v, --verbose              Display transmitted packets on the console. 

Examples

  Start the HTTP server on the default port, sending ArtNet requests to         
  localhost                                                                     
                                                                                
  $ node server.js -h 127.0.0.1                                                 
                                                                                
  Start the HTTP server on port 9000, sending ArtNet requests to a remote host, 
  with verbose output                                                           
                                                                                
  $ node server.js -v -h 10.0.1.17 -p 9000                                      

HTTP interface

  The server will listen on / for POST requests. Posting a JSON body containing 
  an array of numbers between 0 and 255 will write those values to ArtNet       
  universe 0, starting with channel 1. For example:                             
                                                                                
  $ curl -X POST 127.0.0.1:8000 -H "Content-Type: application/json" -d "[255,   
  255, 255]"                                                                    
                                                                                
  You can optionally provide a universe and starting channel number in the HTTP 
  route. For example, to set the first three channels of universe 2 to 255:            
                                                                                
  $ curl -X POST 127.0.0.1:8000/2 -H "Content-Type: application/json" -d "[255, 
  255, 255]"                                                                    
                                                                                
  To set channels 12, 13, and 14 of universe 4 to 0:                            
                                                                                
  $ curl -X POST 127.0.0.1:8000/4/12 -H "Content-Type: application/json" -d     
  "[0, 0, 0]"