Arduino programming Write the syntax for the analogWrite() function in order to output an effective 2V...
Arduino programming
Write the syntax for the analogWrite() function in order to output an effective 2V through
pin 3, assuming 5V logic.
Homework Answers
The syntax for analogWrite() is:
analogWrite(pin, value)
where pin = the pin to write to = 3(given),
and value = the duty cycle from 0(low) to 255(high).
If we assume 5V logic , then 0 value represents 0V and 255 represents 5V. Now we want a output of 2V.
So, 
. Hence 40% of the duty cycle is the corresponding value to be
written to the pin.
value = 40% x 255 = 102.
Hence the syntax is:
analogWrite(3, 102)
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