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serialEvent not working in osx
[0Replies]
- 15-Jun-2012 07:42 AM
- Forum: Integration and Hardware
using Tom Igoe's serial event processing code:
and some arduino code that works.

http://www.processing.org/reference/libraries/serial/serialEvent_.html

I have verified that this works just fine under windows.
I have yet to verify if it works under linux.
It does NOT work in osx.

OSX hack:

run the following python script FIRST before processing sketch:

#!/usr/bin/env python

import serial
from time import sleep

s = serial.Serial(port='/dev/tty.usbmodem411', baudrate=9600)

while (1):
sleep(1)
s.write('\n')
l = s.readline().strip()
print l

This will "prime the pump" of processing so to speak.
Obviously, the serialEvent has NOT been tested in osx.
I will verify later today, if the same situation applies to linux

using Serial to communicate with arduino
[1Reply]
- 14-Jun-2012 06:05 AM
- Forum: Core Library Questions
can someone look at this thread? and clue me in on this?
crossposted thread

does someone have working code in Processing for Serial processing from Arduino ( a line at a time )
[3Replies]
- 13-Jun-2012 08:32 AM
- Forum: Integration and Hardware
I am fairly new to Processing, so pardon the newbie question

I have an arduino program that prints out a csv string val1,val2,val3,val4\n:

int firstSensor = 0;
int secondSensor = 0;
int reset = 0;
int serve = 0;
int inByte = 0;

void setup()
{
// start serial port at 9600 bps:
Serial.begin(9600);
randomSeed(10);
//establishContact(); // send a byte to establish contact until Processing responds
}

void loop()
{
// if we get a valid byte, read analog ins:
if (Serial.available() > 0) {
inByte = Serial.read();
firstSensor = random(385);
secondSensor = random(385);
reset = random(0,2);
serve = random(0,2);
if (reset == 1) {
serve = 0;
}
Serial.print(firstSensor);
Serial.print(',');
Serial.print(secondSensor);
Serial.print(',');
Serial.print(reset);
Serial.print(',');
Serial.println(serve);
}
}

I can read the data in python:

#!/usr/bin/env python

import serial
from time import sleep

s = serial.Serial(port='/dev/tty.usbmodem411', baudrate=9600)

while (1):
sleep(1)
s.write('\n')
l = s.readline().strip()
print l

but I can't get this to work in Processing:

I am trying to use serialEvent and bufferUntil, but no matter what I try, absolutely nothing comes over.

Does anyone have any working code that would take the output of the arduino in processing?

thanks,

Jerry

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