Time intervals between midi commands

Midiin puts out raw midi data. You have to 'format' this data in any case. Connect 'midiin' to a 'midiparse' object and see what data you get.

thanks, couldn't get anything out of the parser. midiin does trigger a bang out of a button, which hooked to the right port of timer sends the interval between bangs to number but adds them together and I need them
separate.

You can't send only a single int 127 over midi.
midi protocol requires a valid message.

Just a guess, and I haven't thought it through carefully, but is the heart rate sensor sending MIDI note messages with velocities of 127, with a note-off message immediately before each subsequent note-on? Because I think that would result in the [timer] appearing to not work when it's actually timing the gap b/w each note-off and the following note-on. And the number box after[midiin] would show 127, too... I think. Even if that's wrong the first thing I'd check is exactly what's coming out of [midiin].

yes midiin does at times send midi msgs consisting of individual int values, so the timing between those values could theoretically be 0 hence the timer output. If you midiparse first those messages, maybe use threshold 1, maybe select only noteon, i don't know ; it might work better. Try to see what's hapening with print connected to midiin.

Timers are no problem at all, but lacking knowledge of midi protocol, and midiin object.
midiin outputs a stream and not a list which would create a single bang per incoming message.
for each note it is 3 bytes - channel pitch and velocity, means 3 bangs get created
very fast, resulting in timer output 0.

Assuming that really proper midi note messages are sent,
a beginner would use notein object and match note and velocity
to create bang, because it is easier that way.
If one has so much simpathy for midiin object, than either midiparse
or simply thresh, followed by match
here 2 examples assuming midi note is C3 (48)

If that is the ONLY midi message which gets ever received, and does not need to be recognised among other ones, even a simple sel 127 would have worked ...

when i look at the first picture i see a button which receives the midiin-input twice.

or - in regards of what source audio said about midi notes - actually it is receiving 4 messages.

then the time difference measured by timer is mostly 0.0, - that is correct.

Thank you all.
Thank you Source Audio for the explanation on midi input streams, I think that was the problem and I will work on this.
In the meantime I have a workaround with a delay to the left timer input which is perhaps not very elegant but works.
Can someone please tell me how to "connect" the dots in the display to give a solid line?

what is the object used to display the dots ? if it is multislider, i think you cannot make such line. Use plot~ instead (be warned ; it's not that easy to use !...) or maybe function could help too. But first try the style "line scroll" this may be enough for your needs !