Hi guys!
I am new here. I am working on square wave generator using audrino.
Frequency range: 0 Hz to 5k Hz
4 different frequencies have to be produced on 4 pins.

Please guide and help.

Thanks in advance.

 

Can you use the output compare module?

 

Hi paps,
I am new to this stuff. Can you please give more info about output compare module?​

 

https://www.arduino.cc/en/Tutorial/DueSimpleWaveformGenerator
https://www.arduino.cc/en/Reference/Tone

google "arduino square wave generator" for more examples/tutorials

 

Hi,
first tutorial says that max 170hz can be produced by that method.
And using, tone function, 4 different frequencies can't be produced simultaneously on different pins.
Regards

 

In simple terms it is a free running timer and a comparison register. Whenever the timer is equal to the value in the comparison register the OCM (Output Compare Module) posts an interrupt request. When the interrupt is serviced an output pin can be toggled. If you have four OCM channels then you can have four squarwave outputs.