#Arduino millis micros code#
put your main code here, to run repeatedly:ĭata1 = serialData.substring(v+1, v) ĭata2 = serialData. put your setup code here, to run once: I will post the code below, any suggestions? Thank you for the informationArduino millis () Arduino has a built-in. I have Serial.println function calls throughout the sketch for debugging purposes, when I comment out all time based lines (millis() and micros()) it works like it "should" - aside from the fact that I need the delay. Arduino board started: millis() and micros(). I have even tried making my own microsecond based delay function and it still doesnt work.
The problem I am having is that when I use that "delayMicroseconds ()" function the sketch no longer seems to work. So perhaps 1 second 954 times counting up by 1 and 23 times counting up by 2. Though millis () will count up by 1 in most cases, it sometimes counts up by 2. To do this I have a series of if statements that check the char and put a "delayMicroseconds(x)" in-between the PORTD ("faster digital write" - port manipulation) statement. Millis is not counting up in equal steps of 1. My issue is that based on whether the current character is a 1 or a 0 it will pulse the output for shorter or longer, respectively. The function that parses through the string seems to work. Let's compare the two following inequations: micros() > (previousMicros + TIMEINTERVAL) (micros. And a lot of 'things' the processor does take several microseconds so its hard to control exactly when micros() is read.
If the sketch is intended to run for longer than that, It needs to make sure the rollover does not make the sketch fail. Its more precise and it obviously has more resolution but its not more accurate. I am working on a function that will write a series of pulses based on a binary string contained in the received data. The return value of micros () function rolls over back to zero after roughly 71 minutes. The basis of the code is that it will receive a sting from the GUI and based on substrings in that received string, it will call certain functions.
I am trying to create a sketch that will be unloaded onto an arduino uno that will allow it to communicate with a python GUI (via pyserial).
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