Puck.js data logger, connected to Ruuvi App

[espruino-discuss]

Posted at 2025-01-17 by amandala

Hello, apologise if already discussed. I wonder if anyone build a Puck or bangle apps that can log data, preferably able to connect to visualisation apps such as Ruuvi App. I'm looking for buffered-timestamped data, just like Ruuvi, but I want to use Puck (and js) if similar has been done before. Many thanks!

[espruino-discuss]

Posted at 2025-01-18 by @yerpj

Espruino used to provide a module for Ruuvitag var Ruuvitag = require("Ruuvitag"); as shown here but it seems that the module is not available anymore.
I don't know if the Ruuvi protocol is still avaialble for anyone to use and replicate

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Posted at 2025-01-20 by @gfwilliams

That Ruuvitag module was for Espruino running on an actual Ruuvitag, but Ruuvi didn't want to continue providing it.

I'm not aware of any Espruino software that's compatible with Ruuvi, but there are a bunch of different ways you can store data on Espruino - see https://www.espruino.com/Data+Collection#flash-memory

If you want timestamped data on Bangle.js you can use the Recorder app which handles a bunch of built-in things (GPS, HRM, etc) and you can add your own data by creating a file. For example foobar.recorder.js could contain:

(function(recorders) {
  recorders.foobar = {
    name : "Foobar",           // Name to appear in UIs
    fields : ["foobar"],       // Column headings to appear as header in recorded CSV data
    getValues : () => [123],   // Columns of data (length should match 'fields')
    start : () => {},          // Called when recording starts - turn on any hardware/intervals you need
    stop : () => {},           // Called when recording stops - turn off any hardware/intervals
    draw (x,y) => {}           // draw 12x12px status image at x,y on g
  }
})

You can then export the data from Bangle.js as a CSV file, or as KML or GPX with GPS coordinates which a bunch of apps will read (although if you add your own recorder you'll also have to modify the downloader to get it to add the data you recorded in a way that works for you)