whorl

Hi...bit of a desperate rush to get a project finished for deadline tomorrow!

I am trying to do something very simple, connect a single potentiometer to max, but the method I previously used is not working for some reason.

In the past I used ArduinoMaxInOutforDummies. However since upgrading to mavericks and (maybe max 6.1) I am getting no response inside max from the arduino.

Can anyone help me out with a quick way to get an analog pot signal into max? Sorry...bit stressed...

BTW I have tried and failed with maxuino as it doesn't seem to like uno boards.

I am trying to do something very simple, connect a single potentiometer to max, but the method I previously used is not working for some reason. 

In the past I used ArduinoMaxInOutforDummies. However since upgrading to mavericks and (maybe max 6.1) I am getting no response inside max from the arduino. 

Can anyone help me out with a quick way to get an analog pot signal into max? Sorry...bit stressed... 

potentiometer-to-max-via-arduino-uno

disclaimer: not familiar with Mavericks, but . . .

Ensure you have the correct driver installed:

Load the Standard Firmata (File/Examples/Firmata) onto the board, and go Tools/Board and Tools/Serial Port/ dev/tty . . .

Otherwise, do all of the above, leaving out Standard Firmata and Maxuino, then load this onto the board:

/*use the serial monitor window in Arduino to

verify the min and max values from the pot;

int readPin = 0; //connect centre pin of pot to A0

int potRead; //variable to store the reading

Serial.begin (19200); //must match the argument to the serial object

potRead = map(readPin, potMin, potMax, 0, 255); //map onto 8 bit value

Serial.println(potRead); //delete this line and uncomment the next to send to Max

Use the "print" message to the serial object in Max to detect the available ports (see the Help file), and poll it with a [metro 50].

Anyhoo
disclaimer: not familiar with Mavericks, but . . . 

Load the Standard Firmata (File/Examples/Firmata) onto the board, and go Tools/Board and Tools/Serial Port/ dev/tty . . . 

/*use the serial monitor window in Arduino to
verify the min and max values from the pot;
enter these values below
*/
int readPin = 0; //connect centre pin of pot to A0
int potRead; //variable to store the reading
int potMin = 0; //lowest pot value
int potMax = 1023; //highest pot value

void setup(){
  Serial.begin (19200); //must match the argument to the serial object
}

void loop(){
  potRead = analogRead(readPin); //read A0
  potRead = map(readPin, potMin, potMax, 0, 255); //map onto 8 bit value
  Serial.println(potRead); //delete this line and uncomment the next to send to Max
  //Serial.write(potRead); //send to Max
  delay(50); //samplerate = 20Hz
}

There is no need to install FTDI drivers when using an Uno. The 16U2 appears as a native USB device.

For a very easy example of how to get the value of one analog sensor, like a pot, into Max, look at the example included with the Arduino software under File > Examples > 4.Communication > Graph. The Arduino sketch is at the top, and a compressed Max 5 patch is included at the bottom.

Once piece of troubleshooting advice : There were changes with how serial ports enumerated in recent versions of OSX (after 10.8.x). In earlier versions of the OS, it would appear as the first item in a list (port "a" to the max serial object). Now it tends to be the last item. Depending on the number of serial connections your computer can make, it's a crapshoot where it could turn up. As Noob_Meister mentions, sending "print" to the serial object will show you what port the Arduino is attached to.

Amazing help folks. I'll get onto it ASAP...

I did actually manage to get arduino2max doing what I wanted and it was relatively painless. Maxuino always seemed to have so much to offer but I could never get it rolling.

potentiometer to max via arduino uno