snites5000@gmail.com

I first would like to thank everyone for being so supportive of me and helping me out.

I got my Arduino to load code, I ran Max2Arduino code in the Arduino and opened up the Max patch. I've changed the port to "b" for usb. I got all the analog pins to stream numbers and the digital pins are banging [haha] in the patch.

I plug an led into ground and any of the digital pins and the LED will not blink. How do I make the LED blink on an Arduino board using Max?????

I first would like to thank everyone for being so supportive of me and helping me out. 

I got my Arduino to load code, I ran Max2Arduino code in the Arduino and opened up the Max patch. I've changed the port to "b" for usb. I got all the analog pins to stream numbers and the digital pins are banging [haha] in the patch. 

I plug an led into ground and any of the digital pins and the LED will not blink. How do I make the LED blink on an Arduino board using Max????? 

lighting-an-led-on-an-arduino-using-max

I'm definitely not an expert... I've only used the MidiTron (never the arduino). But, on that device you connect the LED to the terminal and 5v power source (NOT the ground). I would assume its the same on the Arduino (circuits are circuits, right?)

Quote: snites5000@gmail.com wrote on Wed, 10 October 2007 16:11

----------------------------------------------------

> I first would like to thank everyone for being so supportive of me and helping me out. 

> I got my Arduino to load code, I ran Max2Arduino code in the Arduino and opened up the Max patch. I've changed the port to "b" for usb. I got all the analog pins to stream numbers and the digital pins are banging [haha] in the patch. 

> I plug an led into ground and any of the digital pins and the LED will not blink. How do I make the LED blink on an Arduino board using Max????? 

I'm definitely not an expert... I've only used the MidiTron (never the arduino).  But, on that device you connect the LED to the terminal and 5v power source (NOT the ground).  I would assume its the same on the Arduino (circuits are circuits, right?)

Quote: snites5000@gmail.com wrote on Wed, 10 October 2007 16:11
----------------------------------------------------
> Hey all, 
>
> I first would like to thank everyone for being so supportive of me and helping me out. 
>
> Now to the question: 
>
> I got my Arduino to load code, I ran Max2Arduino code in the Arduino and opened up the Max patch. I've changed the port to "b" for usb. I got all the analog pins to stream numbers and the digital pins are banging [haha] in the patch. 
>
> I plug an led into ground and any of the digital pins and the LED will not blink. How do I make the LED blink on an Arduino board using Max????? 
>
> ~nks
----------------------------------------------------


Thanks for the response. Unfortunately...I tried that and it didn't work.

Quote: snites5000@gmail.com wrote on Wed, 10 October 2007 17:22

> Thanks for the response. Unfortunately...I tried that and it didn't work.

Quote: snites5000@gmail.com wrote on Wed, 10 October 2007 17:22
----------------------------------------------------
> Thanks for the response. Unfortunately...I tried that and it didn't work.
>
> ~nks
----------------------------------------------------


Be sure to only use digital 13 for direct connection of the LED (it has built-in resistor). I've heard the others will burn out LED's as they are too high-current... maybe you have burnt some of yours out.

Other than that, just be sure the blink code is right... ?

I'm messing with Arduino and it's been a struggle sometimes, but generally good. Got some good communication between Max and Arduino going, can control the rates and such of LEDs and lasers from the patch. And Arduino2Max is a blessing to take the work out of indexing the data out.

I wrote the Arduino2Max software.. crude as it is.

You can't get the led to light up because... it is written to only read the pins, not to activate them!

Let's say you want to change it to activate pins 7-13 as outputs. 

- remove the Arduino-side code that reads 7-13

- as an if then statement to look for a character or string sent by Max over the serial port, like 

"w" for write. Inside that loop, write to the pins using digitalWrite statments. 

- tell max to send W followed by pin state data.

Finally, if you do this, post the new code to the Arudino playground, so others can benefit!

I wrote the Arduino2Max software.. crude as it is. 

You can't get the led to light up because... it is written to only read the pins, not to activate them! 

Let's say you want to change it to activate pins 7-13 as outputs. 
Do this: 
- remove the Arduino-side code that reads 7-13
- as an if then statement to look for a character or string sent by Max over the serial port, like 
 "w" for write. Inside that loop, write to the pins using digitalWrite statments. 
- tell max to send W followed by pin state data. 

I should have written "add an if statement"

may i recommend marius schebella's maxduino?

http://www.parasitaere-kapazitaeten.net/max_msp/pduino_for_max

On Oct 11, 2007, at 1:29 AM, terminalcity wrote:

> I wrote the Arduino2Max software.. crude as it is.

> You can;t get the led to light up because it is written to only 

> Let's say you want to change it to activate pins 7-13 as outputs.

> - remove the Arduino-side code that reads 7-13

> - as an if then statement to look for a character or string sent by 

> "w" for write. Inside that loop, write to the pins using 

> - tell max to send W followed by pin state data.

> Finally, if you do this, post the new code to the Arudino 

>
> hi
>
> I wrote the Arduino2Max software.. crude as it is.
>
> You can;t get the led to light up because it is written to only  
> read the pins, not to activate them!
>
> Let's say you want to change it to activate pins 7-13 as outputs.
> Do this:
> - remove the Arduino-side code that reads 7-13
> - as an if then statement to look for a character or string sent by  
> Max over the serial port, like
>  "w" for write. Inside that loop, write to the pins using  
> digitalWrite statments.
> - tell max to send W followed by pin state data.
>
> Finally, if you do this, post the new code to the Arudino  
> playground, so others can benefit!
>
> Daniel
>


I don't know how you've managed to get that working. I am using the Maxuino test patch and Firmata on the Arduino side. The LED plugged in to pin 13 doesn't blink. I am so frustrated with this - I've tried everything I can think of and it just doesn't work. Is there anything else I should be trying?

I don't know how you've managed to get that working. I am using the Maxuino test patch and Firmata on the Arduino side.  The LED plugged in to pin 13 doesn't blink.  I am so frustrated with this - I've tried everything I can think of and it just doesn't work.  Is there anything else I should be trying?


You might have inserted the LED the wrong way. 

LED's are diodes which only lead the electrones one way(from katode to anode).

if you look close, one side of the LED has a flat edge. the connector on that side goes to ground.

if you are planning on using this on the board you need to add a resistance in serial to the diode somewhere between the diode and 5v or gnd.

this resistance should be about 220 ohm(given that the diode needs about 20mA to operate). diodes have ca. 0.3v loss. dunno why.

basic electronics i know. for those who does'nt know, it might stop them from breaking something expensive.

uhm...
You might have inserted the LED the wrong way. 
LED's are diodes which only lead the electrones one way(from katode to anode).

basic electronics i know. for those who does'nt know, it might stop them from breaking something expensive.


maybe this can halp you. the arduino code is not tested..

int data = 0; //max pak input data (pak 0 number)

char id; //max pak input 1( pak 0 1)
int data = 0; //max pak input data (pak 0 number)

id = Serial.read();
data = Serial.read();

if (data != 0){
digitalWrite(12, HIGH);
}
else{
digitalWrite(12, LOW);
}

if (data != 0){
digitalWrite(13, HIGH);
}
else{
digitalWrite(13, LOW);
}
}

i've got some issues with this as well. I am trying to send integers to the arduino(duemilanove) from max. The arduino is also supposed to send the integers wirelessly using a easy radio transceiver.

i dont know if i receive the right values from max.

these are my programs so far(arduino and max(not the program to receive wirelessly, only the one to receive from max and send it on.)

PS: much of this is code which i have used from other programs i have found on forums aso.

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                "text" : "2",

                "bgcolor2" : [ 0.867, 0.867, 0.867, 1.0 ],

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                "minimum" : "",

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Lighting an LED on an Arduino using Max