Wow that was really fast!

Testing your script brought me to 2 problems:

testing brushTimer.js in the console worked for detecting the brush but did never stop, also not after 32 sec!

including your module into the MM i got an error message upon activating the brush:

“noble warning: unknown handle 64 disconnected!”
“scanning was started. Everything is working fine.”

this two message’s i get upon every activation, so the MM show always SEARCHING…

any suggestions?

maybe contacting oralB via the developer program homepage ( https://developer.oralb.com/ ) could be helpful. there might be a support team helping developers creating new apps for their brush

should we go back to the “low level approach”?

as i understand you can instantly determine if there is a certain brush(matching the macaddress via the config) within the bluetooth range upon activation of these.
any interruption of brushing is detected, 20 sec or so too late of course i know, when the brush goes offline again.
so can we start a stopwatch (let’s say at the center position) upon detection, stopping when not detecting the brush anymore and reseting to 00:00 after 2min followed by vanishing the stopwatch.
i know that this wouldn’t be very accurate, but better then nothing. giving the user a feel for the time
and for a pro like you i guess this would be very easy to develop.
examples for start/stop/reset timers are quiet a lot available in the web.

how do you think about

maybe using hcitool with the syntax for pairing a device before would solve this issue, have you tried that?
as far as i understand the rpi3 bluetooth is on, at startup, but you have to pair the devices every startup, unless you use hcitool with the corresponding syntax for direct pairing within your .js

exciting.
you get everything needed for a really high quality piece of module.

battery level
brushing mode
brushing time
pressure
quadrant
smiley

i am a bit concerned about the user readout. (Do you think it might be possible to determine which of eg. 3 brushes is presently used?)

not in the mmmbutton folder of course

try :

cd ~/MagicMirror/modules/MMM-Button
sudo npm rebuild --runtime=electron --target=1.4.6 --disturl=https://atom.io/download/atom-shell --abi=50

@SvenSommer
hi. nice to know that someone else (with programming skills) is interested too.

ohh yes . ‘hcitool con’ is not perfect, first activation of the toothbrush is very accurate but as you mentioned any interruption is detected unreliably, and late.

your problem sounds like the “white screen” issue of mmm-button, so maybe rebuilding/downgrading your electron version might help. (see the forum for this issue)

as you can see in the posts above there is an API by OralB. At the end using it would give the highest quality of input/output. as you can also read between the lines i dont know enough about coding stuff, so i went for the low level approach via mmm-networkscanner and to integrate thereafter a simple stopwatch.

Any help is highly welcome.

ok integrated “hcitool con”, because of the very fast response,
had to alter the parsing of NetworkScanner.
i think i got the parsing, but networkscanner says NO DEVICES
when i “console.log(macAddresses)” , at the end of node_helper script i get during MM in console :

MMM-NetworkScanner received SCAN_NETWORK
MMM-NetworkScanner is scanning for mac addresses
[ ‘E0:E5:CF:FC:4D:8C’ ]                             

shouldn’t this “macAddresses parse” be understand by NetworkScanner? What am i missing here?

nodehelper script is as follows:

 scanNetwork: function() {
        console.log(this.name + " is scanning for mac addresses");

        var self = this;
        var arp = sudo(['hcitool', 'con']);
        var buffer = '';
        var errstream = '';

        arp.stdout.on('data', function (data) {
            buffer += data;
        });

        arp.stderr.on('data', function (data) {
            errstream += data;
        });

        arp.on('error', function (err) {
            errstream += err;
        });

        arp.on('close', function (code) {
            if (code !== 0) {
                console.log(self.name + " received an error running arp-scan: " + code + " - " + errstream);
                return;
            }
            //Parse the response
            var rows = buffer.split('\n');
            var macAddresses = [];

            // HCI-TOOL SCAN table
            for (var i = 1; i < rows.length; i++) {
                var cells = rows[i].split(' ').filter(String);
                if (cells[2] && macAddresses.indexOf(cells[2].toUpperCase()) === -1) {
                    macAddresses.push(cells[2].toUpperCase());
                }
            }

            self.sendSocketNotification('MAC_ADDRESSES', macAddresses);
	    console.log(macAddresses);
        });

    }

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