The Engineering Projects

SIM808 module with PIC18f4580

I have been attempting to interface SIM808 module with PIC18f4580. I completed the code by myself.I attempted to debugit utilizing PICkit3.The resound mode is not getting OFF despite the fact that I set ATE0.The SIM808 module is sending back what it has gotten from the PIC18f4580.Plz help me with this.

PWM Signal with Labview and Arduino

I am trying to generate a PWM signal with variable frequency using Labview and an Arduino UNO.
When using the PWM write pin VI, I cannot adjust the frequency.
When using a Tone VI, I cannot adjust the duty cycle (set 50%).
When using the Digital Write pin with a signal generator in LabView, it appears that the Arduino cannot read the signal I am generating.
My question is: Is there a way to create a PWM signal with Arduino and Labview where I can control all of these features?
Note: I realize that I can edit the arduino LVIFA code to change the frequency, but that isn't ideal because I cannot change it with a control, right?
Thanks for the help and please have some grace due to the fact that I am new to this stuff.