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Deutsch / Re: Vier 24 VDC Schrittmotoren...
Last post by mxnz - Today at 03:21 pm
Willkommen im Forum!

Welche Ströme benötigen die Schrittmotoren?

Danke dir!

Ich weis leider nur von einem alten Motor, dass er bei 24V über einen inneren Widerstand von 17Ohm verfügt, was dann wohl einen Strom von 1,4A macht. Bis nächste Woche erfahre ich leider die anderen Werte nicht, diese dürften aber in einer ähnlichen Größenordnung liegen, fals das schonmal hilft :/

Wenn die Angaben für Weiteres unabdingbar sind, würde ich mich ansonsten nächsten Di wieder hier melden!
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Did you try quickly double pressing reset ?

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Español / Re: Conexion y comunicacion Sh...
Last post by mhamon - Today at 03:17 pm
Muchas gracias la voy a revisar.




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Website and Forum / Re: TRYING TO MAKE TWO 0D66 MO...
Last post by PaulS - Today at 03:17 pm
Quote
I AM TRYING TO ACHIEVE THAT THE TWO SENSOR SEND MOVEMENTS READINGS TO THE SERIAL MONITOR THE MAIN ISSUE IS THAT EVEN THOUGH THE PROJECT UPLOAD WITH NO PROBLEMS THE SENSORS SEEMS TO NOT CONNECT HENCE THE MAINLY STUCK IN THE ACTIVE SECTION COULD ANYBODY HELP ME HERE
The main problems are that you
1) are shouting at us
2) are posting code incorrectly
3) are posting in the wrong place.

If you fix items 1 and 2, a moderator can move the post to the proper place.
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Sensors / Re: Help
Last post by wvmarle - Today at 03:15 pm
No idea what the place of Linux is on an Arduino but other than that looks perfectly doable.
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I don't understand where you get 277V from. In Aus we are supposedly 230V phase to neutral although in NSW around 250 is more common until they get the grid sorted out.
Because a couple of weeks ago I had to replace our reflow convection oven. They run 480 VAC 3-phase. The electrician checked the voltages as a final step. Phase-to-phase was about 485 volts. Each one a couple of volts different. Also checked volts to common and they were about 280 volts with a couple of volt variation.

So, when I read the comment about the voltage being 240 volts from a 480 volts service, I knew that was wrong.

Also, see "https://ctlsys.com/support/electrical_service_types_and_voltages/".

Paul
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Programming Questions / Re: String to Int
Last post by PaulS - Today at 03:14 pm
Quote
it displays a graph showing values over a period of time
What values? How is the data in the graph related to what it sent to the Arduino? More specifically, perhaps, is why does that relationship need to exist?

What does the name oldsteps mean to you? Exactly what is it supposed to hold? Why doesn't oldsteps affect stepping in the minus direction?
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Thank you again for your reply. interest is appreciated.
Because the required rpm is a float. ie, setpointVariable. I have thought about and I think I even tried multiplying x 10 and then dividing by 10 after the timing is calculated but that didn't seem to work.
no, the requirement in your code is that the pulse is timed.  you are using :

Code: [Select]
pulseTime = micros() - oldPulseTime;

pulseTime is an (unsigned) integer.

you only need the floating point RPM for the human-readable output to the LCD.  Calculating that is trivial.

I'd go back and try to use just integer math.
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Generale / Re: Comunicazione seriale Ardu...
Last post by SiriusK - Today at 03:11 pm
Avevo inserito i delay per far acquisire la lettura dopo almeno 100ms. Il discorso è che se anche togliessi quei delay lui continuerebbe a lavorare con i dati precedentemente acquisiti (come infatti fa).
Non ho ben presente la struttura della memoria ma immagino che sia circolare e che accumuli nel buffer il maggior numero di istruzioni che riesce a leggere dal seriale.
Quello che invece voglio io è che legga la singola informazione, svolga ciò che deve fare e ri-legga l'ultima istruzione disponibile in arrivo, senza accumuli.
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The Arduino Web Editor does that:
https://create.arduino.cc/editor
The regular IDE doesn't have that feature, though it has been requested multiple times over the years.
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