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Difference between revisions of "Talk:Soft Start"

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polling is probably better than interrupts
 
polling is probably better than interrupts
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display
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# make an array A(1) -- A(8)
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set display to request input one number at a time
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for 8 numbers
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convert the number to binary
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step out each bit one at a time
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------------------
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display
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# to fine tune the output
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allow changing any one of the numbers
  
  
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(16 bytes - 128 bits)
 
(16 bytes - 128 bits)
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================
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#is this 5V or 3.3V ports  ?
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# AND gate may need 5V
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from gpiozero import LED, Button
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led = LED(17)
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button = Button(2)
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while True:
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.    button.wait_for_press() #clock
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.    led.on() # drive to opto
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.    button.wait_for_release()
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.    led.off() #how long ON ?
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#will it need wave shaping
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#or will opto signal work ?
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xxxxxxxxxxxxxxcc
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clock to AND gate
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data to AND gate
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.  to button (wait-release)
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.  led (on-off) drives optoisolator
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.
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=============
  
  

Latest revision as of 10:42, 23 October 2021


polling is probably better than interrupts

display

  1. make an array A(1) -- A(8)

set display to request input one number at a time

for 8 numbers

convert the number to binary

step out each bit one at a time



display

  1. to fine tune the output

allow changing any one of the numbers


perhaps set up a string in memory (how)

read bit

test input

if hi output bit or test input

if address > 127 goto test input

  1. last bit should be 1
  2. repeat - full ON

bump address

if > 127 then test input

IF ^C end #or clean up

goto read bit

xxxxxxxxxxxx

enter 16 numbers from keyboard

(16 bytes - 128 bits)


====
  1. is this 5V or 3.3V ports ?
  1. AND gate may need 5V

from gpiozero import LED, Button

led = LED(17)

button = Button(2)

while True:

.    button.wait_for_press() #clock

.    led.on() # drive to opto

.    button.wait_for_release()

.    led.off() #how long ON ?

  1. will it need wave shaping
  1. or will opto signal work ?

xxxxxxxxxxxxxxcc

clock to AND gate

data to AND gate

. to button (wait-release) . led (on-off) drives optoisolator .

=

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