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Topic: Arduino USB host shield pin 3 not working (Read 1 time) previous topic - next topic

GreatStoneDragon


Hello everyone,

I recently bought the arduino usb host shield. I wired up some circuits to test out what i can do with it using a 360 controller. What i found out after playing around with it and some research was that i cant use I/O pins 10- 13. The problem is that PWM pin 3 is not responding to the arduino programs i write using it.

I dont know what the problem is....

So i decided to reconnect every pin with jumper wires until i find out when pin 3 would turn off.  I wired up an LED with a HIGH written to pin 3 and started connecting everything from the shield to the arduino. Pin 3 only turned off when i connected the reset ISCP pin from the shield to the arduino.

That seems to be what the problem is, I don't know what to do now....


PaulS

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I recently bought the arduino usb host shield.

Which one?

Quote
What i found out after playing around with it and some research was that i cant use I/O pins 10- 13.

Because the USB Host shield is an SPI device.

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The problem is that PWM pin 3 is not responding to the arduino programs i write using it.

Perhaps because the timer that is involved has been hijacked for another purpose.

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I don't know what to do now

Perhaps you could give some consideration to posting your code.

GreatStoneDragon

Hi,
The shield is this one: http://www.amazon.com/gp/aw/d/B00CPYSX1M?cache=1390772369&pi=AC_SX110_SY165_QL70#ref=mp_s_a_1_14

The code I used:

Const int LED = 3;

Void setup(){
pinMode(LED, OUTPUT);
}

Void loop(){
digitalWrite(LED, HIGH);
}

PaulS

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The code I used:

No, it isn't. That code won't even compile.

For all the details provided about that shield, I hope you got your money's worth. That site is useless. I can only hope that their products aren't.

GreatStoneDragon

#4
Jan 27, 2014, 09:27 pm Last Edit: Jan 27, 2014, 09:46 pm by GreatStoneDragon Reason: 1
Umm, why won't it compile....

If it's because of case sensitive, then that is dealt with in the IDE, I just wrote the progress format

PaulS

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If it's because of case sensitive, then that is dealt with in the IDE

No, it isn't.

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I just wrote the progress format

The what?

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