Max5 + serial object + Arduino

Max & Arduino play fine together, so something isn't right in your patch or sketch. Posting your patch will get you more help. Posting your sketch might help, too. Have you had any success with the existing Max-Arduino patches & sketches, e.g. "Arduino2Max" patches & sketch?

David

I am using the Communications Tutorial 2: Serial Communication tutorial patch w/ the sample code provided. None of the third party objects like Arduino2Max work either, thus leading me to believe something is up with the serial object.

Posted the code here:

// Arduino Serial Tester
// rld, cycling'74, 3.2008

long randomvalue = 0; // random value
long countervalue = 0; // counter value
int serialvalue; // value for serial input
int started = 0; // flag for whether we've received serial yet

void setup()
{
Serial.begin(9600); // open the arduino serial port
}

void loop()
{
if(Serial.available()) // check to see if there's serial data in the buffer
{
serialvalue = Serial.read(); // read a byte of serial data
started = 1; // set the started flag to on
}
if(started) { // loop once serial data has been received
randomvalue = random(1000); // pick a new random number
Serial.print(countervalue); // print the counter
Serial.print(" "); // print a space
Serial.print(randomvalue); // print the random value
Serial.print(" "); // print a space
Serial.print(serialvalue); // echo the received serial value
Serial.println(); // print a line-feed
countervalue = (countervalue+1)%1000; // increment the counter
delay(100); // pause
}
}

Max Code:

Edit - Copy Compressed

A couple things.

*Make sure you don't have the Arduino's serial monitor open at the
same time as Max.
*Make sure you're talking on the right serial port.
*On the newer Arduinos (Decimillias and later), when a serial
connection opens, you'll need want to wait a few seconds before
sending any information. This is because of the reset feature that
was built into the bootloader on these versions. It's looking for
information from the Arduino IDE.

Also, use Copy Compressed when posting patches to the list.

~s

Ok,

So I've tried everything listed here. The Arduino Programming environment isn't open at the same time Max 5 is. I triple checked the serial port is set to "a" which is my USB serial bus. I waited 10 seconds after resetting the Arduino before activating the metro and sending the byte 10 to the board. RX lights up when I send bytes, but TX does not indicating that something in the transmission back to Max is funky.

Thanks for the advice,
Steve

Whoops, heres the Max code (edit -> Copy Compressed):

I attempted the same basic patch in Max 4.6 and get the same results, no communication from the Arduino to Max.

Have you tried just sending information?

////Arduino :: simple serial sender

byte num = 2;
void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.print(num, BYTE);
delay(30);
}

////Max :: simple serial listener

does it work if you set the port by its name instead of its letter?

see attached patch, which also provides the menu selection of
available ports...

hth

/*j

No help there either. I hooked the umenu up, no dice, I attempted the simple serial patch, I can send bytes to the Arduino (as indicated by RX lighting up, but TX does not return values to Max). The Max Serial Communication example worked briefly last night. These programs work in the Arduino Environment Serial Monitor.

Arrrgggg.

Steve