• peter.kueffner

    I was developing a module on the Flic Hub using the Flic Hub SDK. The module sends out all button presses as UDP messages.

    While working on the module, I noticed a strange bug, which I assume is a firmware issue - when sending the 36th UDP message, the module crashes with a

    FATAL ERROR: uncaught: 'cannot push beyond allocated stack'

    I made a minimal module that will reproduce the bug consistently:

    var dgram = require("dgram"); function SendJSON(data) { try { udp = dgram.createSocket("udp4"); udp.send(data, 32768, "127.0.0.1", function(err) { console.log("UDP sent. Return: " + err); udp.close(); }); } catch(e) { console.log("Error sending button state!"); } }; var i = 0; var myInt = setInterval(function() { i ++; console.log("Sending packet " + i); SendJSON("" + i + " "); }, 100);

    Flic Hub SDK Console output:

    Sending packet 1 UDP sent. Return: null Sending packet 2 UDP sent. Return: null Sending packet 3 UDP sent. Return: null [...] Sending packet 34 UDP sent. Return: null Sending packet 35 UDP sent. Return: null Sending packet 36 FATAL ERROR: uncaught: 'cannot push beyond allocated stack'

    I consider this a firmware bug because of the following reasons:

    the "fatal error" is not catched by the try-catch block the module is still considered "running" even after the crash (the SDK's "play" button stays in "can be stopped" state)

    Is there any solution to this?

  • scoobmx

    Is there more info available somewhere on the sequencing feature for flic twist? For example, can the same device be used in multiple positions around the dial? E.g. a light that has a brightness range set for 6-8 o’clock, another brightness range set for 10-12 o’clock, and another brightness range set for 2-4 o’clock, with the rest of the dial doing the same for another light?

  • MediaMan

    Is it possible, or suggested, to use more than one Flic hub, maybe for greater coverage area?

    For example, I'm wondering if I could use a Flic Hub LR AND a Flic Hub Mini.

  • oskar

    Hi!

    We have released a script to make it possible to send OSC messages from the Flic Hub SDK.

    The script can be found here: https://github.com/50ButtonsEach/flic-hub-sdk-osc-js

    OSC is a communication protocol made for live performances and is often used to communicate with the popular application https://qlab.app .

    With this script you can easily trigger workflows in QLab (or other OSC enabled applications) with a push of a button.

    Hope you find this useful!

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