how do i seperate potentiometers?

Hello,

I am having a problem that the potentiometers are influencing each other.
Like in this circuit, the potentiometers are in fact parallel and when you turn on 1 of the potentiometers, the resistance from the other is changing to. Does any one have a solution how to separate them from each others so i can operate two independent pwm's?

Hello,

The Arduino pins that you are using, according to the schematic, are not PWM. About the circuit it is correct and the potentiometers shouldnt behave that way, so please post your code, maybe you missed something.

\o/

Verify you are trying to read the correct analog pins. Happens to me sometimes. Especially when I work upside down. I think I connect the sensor to A2 and while I'm reading Pin A2 I actually connected it to A3. Because the pins are so sensitive they react to the voltage change to the pins next to it.

Exactly the reason why you want to use a pull-up or or pull-down resistor when using a button.

Hi,

Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html
then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.

There is a small problem that occurs with reading different analog inputs one after the other, it has to do with the fact that there is only ONE AtoD converter.
When you read an analog pin, the input to the AtoD is switched to that pin.
It takes time for the AtoD input to change to the new input pin level it has been switched to because of a capacitor on the AtoD input.
The solution is to read the analog pin twice and use the value of the last read, each time you change analog input pins.
We will need to see your sketch to help.

As stated previously the output pins you are using are not PWM equipped, look at the PCB pin names and you will see the correct pins, they are marked PWM or have ~ sign beside them. 3, 5, 6, 9, 10, 11

Tom... :slight_smile: