Maestro Servo controler switch

Robotics and electronics discussion Software and microcontrollers
1

Hello,
im from germany.
I have ha problem that i have a sensor that send seqeuns.
I would controll a servo for that with.
but i get a overflow with my script but i don`t now why?
I am new in that. There is the scipt

goto main_loop    # Run the main loop when the script starts (see below).
 
# This subroutine returns 1 if the button is pressed, 0 otherwise.
# To convert the input value (0-1023) to a digital value (0 or 1) representing
# the state of the button, we make a comparison to an arbitrary threshold (500).
# This subroutine puts a logical value of 1 or a 0 on the stack, depending
# on whether the button is pressed or not.
sub button
  0 get_position 500 less_than
  return
 
# This subroutine uses the BUTTON subroutine above to wait for a button press,
# including a small delay to eliminate noise or bounces on the input.
sub wait_for_button_press
  wait_for_button_open_400ms
  wait_for_button_closed_400ms
  return
 
# Wait for the button to be NOT pressed for at least 10 ms.
sub wait_for_button_open_400ms
  get_ms # put the current time on the stack
  begin
    # reset the time on the stack if it is pressed
    button
    if
      drop get_ms
    else
      get_ms over minus 400 greater_than
      if drop return endif
    endif
  repeat
 
# Wait for the button to be pressed for at least 10 ms.
sub wait_for_button_closed_400ms
  get_ms
  begin
    # reset the time on the stack if it is not pressed
    button
    if
      get_ms over minus 400 greater_than
      if drop return endif
    else
      drop get_ms
    endif
  repeat

sub button1
  0 get_position 500 less_than
  return
 
# This subroutine uses the BUTTON subroutine above to wait for a button press,
# including a small delay to eliminate noise or bounces on the input.
sub wait_for_button_press1
  wait_for_button_open_300ms
  wait_for_button_closed_300ms
  return
 
# Wait for the button to be NOT pressed for at least 10 ms.
sub wait_for_button_open_300ms
  get_ms # put the current time on the stack
  begin
    # reset the time on the stack if it is pressed
    button1
    if
      drop get_ms
    else
      get_ms over minus 300 greater_than
      if drop return endif
    endif
  repeat
 
# Wait for the button to be pressed for at least 10 ms.
sub wait_for_button_closed_300ms
  get_ms
  begin
    # reset the time on the stack if it is not pressed
    button1
    if
      get_ms over minus 300 greater_than
      if drop return endif
    else
      drop get_ms
    endif
  repeat

 

sub button2
  0 get_position 500 less_than
  return
 
# This subroutine uses the BUTTON subroutine above to wait for a button press,
# including a small delay to eliminate noise or bounces on the input.
sub wait_for_button_press2
  wait_for_button_open_200ms
  wait_for_button_closed_200ms
  return
 
# Wait for the button to be NOT pressed for at least 10 ms.
sub wait_for_button_open_200ms
  get_ms # put the current time on the stack
  begin
    # reset the time on the stack if it is pressed
    button2
    if
      drop get_ms
    else
      get_ms over minus 200 greater_than
      if drop return endif
    endif
  repeat
 
# Wait for the button to be pressed for at least 10 ms.
sub wait_for_button_closed_200ms
  get_ms
  begin
    # reset the time on the stack if it is not pressed
    button2
    if
      get_ms over minus 200 greater_than
      if drop return endif
    else
      drop get_ms
    endif
  repeat



sub button3
  0 get_position 500 less_than
  return
 
# This subroutine uses the BUTTON subroutine above to wait for a button press,
# including a small delay to eliminate noise or bounces on the input.
sub wait_for_button_press3
  wait_for_button_open_100ms
  wait_for_button_closed_100ms
  return
 
# Wait for the button to be NOT pressed for at least 10 ms.
sub wait_for_button_open_100ms
  get_ms # put the current time on the stack
  begin
    # reset the time on the stack if it is pressed
    button3
    if
      drop get_ms
    else
      get_ms over minus 100 greater_than
      if drop return endif
    endif
  repeat
 
# Wait for the button to be pressed for at least 10 ms.
sub wait_for_button_closed_100ms
  get_ms
  begin
    # reset the time on the stack if it is not pressed
    button3
    if
      get_ms over minus 100 greater_than
      if drop return endif
    else
      drop get_ms
    endif
  repeat


sub button4
  0 get_position 500 less_than
  return
 
# This subroutine uses the BUTTON subroutine above to wait for a button press,
# including a small delay to eliminate noise or bounces on the input.
sub wait_for_button_press4
  wait_for_button_open_75ms
  wait_for_button_closed_75ms
  return
 
# Wait for the button to be NOT pressed for at least 10 ms.
sub wait_for_button_open_75ms
  get_ms # put the current time on the stack
  begin
    # reset the time on the stack if it is pressed
    button4
    if
      drop get_ms
    else
      get_ms over minus 75 greater_than
      if drop return endif
    endif
  repeat
 
# Wait for the button to be pressed for at least 10 ms.
sub wait_for_button_closed_75ms
  get_ms
  begin
    # reset the time on the stack if it is not pressed
    button4
    if
      get_ms over minus 75 greater_than
      if drop return endif
    else
      drop get_ms
    endif
  repeat


sub button5
  0 get_position 500 less_than
  return
 
# This subroutine uses the BUTTON subroutine above to wait for a button press,
# including a small delay to eliminate noise or bounces on the input.
sub wait_for_button_press5
  wait_for_button_open_50ms
  wait_for_button_closed_50ms
  return
 
# Wait for the button to be NOT pressed for at least 10 ms.
sub wait_for_button_open_50ms
  get_ms # put the current time on the stack
  begin
    # reset the time on the stack if it is pressed
    button5
    if
      drop get_ms
    else
      get_ms over minus 50 greater_than
      if drop return endif
    endif
  repeat
 
# Wait for the button to be pressed for at least 10 ms.
sub wait_for_button_closed_50ms
  get_ms
  begin
    # reset the time on the stack if it is not pressed
    button5
    if
      get_ms over minus 50 greater_than
      if drop return endif
    else
      drop get_ms
    endif
  repeat




# An example of how to use wait_for_button_press is shown below:
 
# Uses WAIT_FOR_BUTTON_PRESS to allow a user to step through
# a sequence of positions on servo 1.
main_loop:
begin
  frame
  frame1
  frame2
  frame3
  frame4
  frame5
repeat
 
sub frame
  wait_for_button_press
if 1
  2000 12 servo
else
 drop return
endif
sub frame1
  wait_for_button_press1
if 1
  4000 12 servo
else
 drop return
endif
sub frame2
  wait_for_button_press2
if 1
  6000 12 servo
else
  drop return
endif
sub frame3
  wait_for_button_press3
if 1
  8000 12 servo
else
  drop return
endif
sub frame4
  wait_for_button_press4
if 1
  10000 12 servo
else
 drop return
endif
sub frame5
  wait_for_button_press5
if 1
  12000 12 servo
else
 drop return
endif
2

Hello.

There seems to be a lot going on in your program, so I suggest you start by trying to simplify it to the simplest complete program that demonstrates the problem. I also highly recommend watching what your program does and how the stack behaves using the “Step Script” button so you can check that each part of your program does exactly what you expect it to do.

If you do that and still cannot recognize the problem, could you post your simplified program here? Can you also provide more information about the sensor you are trying to use with your Maestro, like a datasheet or product page link for it?

- Patrick

3

It is a sensor that measures light and position and outputs it as a millisecond pulse.
I just expanded and adapted the simple switch detection as a digital value.

4

The Maestro cannot read pulse widths, so unfortunately, reading that sensor signal directly with the Maestro is probably not going to be practical. A general-purpose programmable microcontroller, like an Arduino or one of our Arduino compatible A-Stars would probably be more appropriate for that. Then, if you wish, you could use that to send commands to the Maestro through the Maestro’s serial interface.

- Patrick