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Hot!Name that MCU ?

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steve1428
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2020/11/30 02:51:34 (permalink)
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Name that MCU ?

Inputs
2 X 50 Hz PWM (with the ability to detect/count pulse width and amplitude)
1 X Digital
 
Outputs
4 X variable analog between 0.5 and 5 V @ 100 mA  (PWM synthesized analog is ok)
8 X digital outputs
 
heavy duty, automotive or mil spec grade
 
Thank you
 
 
 
 
 
 
 
 
 
 
 
 
 
x
#1

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    ric
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    Re: Name that MCU ? 2020/11/30 03:40:04 (permalink)
    5 (1)

    I also post at: PicForum
    Links to useful PIC information: http://picforum.ric323.co...opic.php?f=59&t=15
    NEW USERS: Posting images, links and code - workaround for restrictions.
    To get a useful answer, always state which PIC you are using!
    #2
    steve1428
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    Re: Name that MCU ? 2020/11/30 03:45:18 (permalink)
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    Sorry for re-posting, can't see how to delete the previous one, it was too confusing.
     
    From using the selection guide I don't think such an animal exists, I'm just going to have to use an external amplifier, either OP amp or FET
    post edited by steve1428 - 2020/11/30 03:48:47
    #3
    ric
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    Re: Name that MCU ? 2020/11/30 04:47:05 (permalink)
    5 (1)
    There's none with a digital output that can supply 100mA.
    You're even less likely to get an analog output with that capability, due to the greater power dissipation.

    I also post at: PicForum
    Links to useful PIC information: http://picforum.ric323.co...opic.php?f=59&t=15
    NEW USERS: Posting images, links and code - workaround for restrictions.
    To get a useful answer, always state which PIC you are using!
    #4
    Antipodean
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    Re: Name that MCU ? 2020/11/30 06:53:15 (permalink)
    1 (1)
    See my post in your previous thread.
     

    Do not use my alias in your message body when replying, your message will disappear ...

    Alan
    #5
    steve1428
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    Re: Name that MCU ? 2020/11/30 07:24:22 (permalink)
    4 (1)
    https://youtu.be/qu6SUUNkWHk
     
    The above link is one application for this kind of a control signal, it's my electric hang glider winch.  The inside is a brushless scooter hub.  The 100 mA signal is mimicking the hall sensor based throttle control on these systems that tells the brushless motor controller (inverter) what to do.
     
    As I said in another thread no one is using these things for mechatronix / robotics.
     
    It all may just be a pain, I got a waterproof nema 23 stepper motor for my lawn mower and I'm going to see it if can handle the vibration and duty cycle.
     
    That's the idea behind using the hub motors, they're made to handle pot holes, rain, snow etc.
     
    Here's a smaller scooter type hub motor being controlled in the same way.
     
    https://youtu.be/NKOtQSSOc5U
     
    I appreciate your input, I'm good on the fabrication and electrical side of things and I can figure out how to program a PIC eventually I'm sure but there are so many and every time I switch to another one the data sheets seem to be in a different format which throws me for a loop but I'm getting onto it.
    #6
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