Automatically wake bluetooth speaker from sleep/suspend

[Stinger0815]

@sdetweil said in Automatically wake bluetooth speaker from sleep/suspend:

SO, you could make a script named the same as the pgm that GA will call on PIR wakeup

and inside that script do your thing and then call the original pgm (U will probably have to rename it, or move it a new location) passing the original parms…

I’ve done this a hundred times over the years…

Sounds pretty good to me - however, here comes the next problem. I’m pretty bad with all kinds of script based + OO languages. My only background is embedded development, so translating what you said sounds a little bit like creating a new callback function and from there calling the original one. BUT how?! :beaming_face_with_smiling_eyes: No, for real, I’ve looked the forum real quick for stuff like “how to invoke small scripts” but was not successful. Do you have by any chance some sort of quick-start guide or any other tutorial to look at? I feel bad for asking as this is nothing really “magic mirror” related rather a basic programming thing - however, still want to give it a try in order to avoid mistakes that could come from the MM structure/architecture.

Best regards and thanks again

[sdetweil]

@stinger0815 start here
https://linuxcommand.org/lc3_wss0010.php

but one point the filename does NOT NEED the .sh extension

The leap from this topic to my idea is that your ‘script’ can be named the same as the program u wish to run and no one could tell it was your script instead!
and your script can call the original program so you don’t have to recreate everything it does

path is an important topic here. covered in the linked topic

most of this works in windows too

[Stinger0815]

@sdetweil said in Automatically wake bluetooth speaker from sleep/suspend:

@stinger0815 start here
https://linuxcommand.org/lc3_wss0010.php

but one point the filename does NOT NEED the .sh extension

The leap from this topic to my idea is that your ‘script’ can be named the same as the program u wish to run and no one could tell it was your script instead!
and your script can call the original program so you don’t have to recreate everything it does

path is an important topic here. covered in the linked topic

most of this works in windows too

Hey thank you very much! I’ve in the meantime started to look for a hack to get it to work:

in the node_helper of the detector module I’ve changed the function that sends the notification once the trigger command is received and added a child_process (from nodejs) there:

  onDetected: function (from, detected) {
    this.deactivate()

    let ble = require('child_process');
        ble.exec('sh bluetooth_connector.sh',
            function (error, stdout, stderr) {
                console.log('stdout: ' + stdout);
                console.log('stderr: ' + stderr);
                if (error !== null) {
                     console.log('exec error: ' + error);
                }
            });

    this.sendSocketNotification("DETECTED", { from: from, key: detected } )
  },

The script that is called by exec “bluetooth_connector” only contains:

#!/bin/bash

bluetoothctl \
connect <<BLE ADDRESS>>
exit

pretty hacky but does the job for now. I’ll now try to figure out whether this is actually decoupled enough so that the exec does not block the rest of the application. As I can tell from the logs it looks like the script is decoupled and runs in the background - what is good.

So as this is running now I’ll look into the solution you gave.

[bugsounet]

(if you think that is the better solution… I will engage you for coding :D)

[Stinger0815]

@bugsounet said in Automatically wake bluetooth speaker from sleep/suspend:

(if you think that is the better solution… I will engage you for coding :D)

:face_with_hand_over_mouth:

It’s certainly not a perfect solution - I have to add that every time there is an update in the detector helper - ohh, surprise, there is an update in the detector module :D

[bugsounet]

@stinger0815

humm…
i’m so kind today … so try v3.0.4 of GA with this recipe:

var recipe = {
  commands: {
    "Bluetooth": {
      shellExec: {
        exec: (params) => {
          if (params.notification == "GA_ACTIVATE") return "bluetooth_connector.sh"
          else return null
        }
      }
    }
  },
  plugins: {
    onNotificationReceived: "Bluetooth"
  },
}

exports.recipe = recipe

Note maybe you have to add path in the return value example /home/pi/bla/bla/bluetooth_connector.sh

[Stinger0815]

@bugsounet said in Automatically wake bluetooth speaker from sleep/suspend:

@stinger0815

humm…
i’m so kind today … so try v3.0.4 of GA with this recipe:

var recipe = {
  commands: {
[...]

Note maybe you have to add path in the return value example `/home/pi/bla/bla/bluetooth_connector.sh`

That’s pretty sweet and works fine :) Thank you very much!

[bugsounet]

that i says: i’m so kind today

because i offer no help there, so today you have a lot of chance :)

[bert269]

@stinger0815 : I am so sorry to “hijack” your thread. But do you perhaps have the correct steps to follow to install and get GA to work on the rpi? I have tried numerous threads, but all are out-dated and different from Google’s current developer screens - So I get to a spot where things are no longer working.
Google does not really help either, as I have raised questions, that gets not answered.

Thank you and I apologize again.

[DJBOOB66]

@bert269
[http://wiki.bugsounet.fr/en/MMM-GoogleAssistant](link url)