wvmarle:
You won't be able to send a PWM signal over Bluetooth, unless it's really slow (as you have to deal with delays and unreliable transmission speeds).What you can do is send the instruction over Bluetooth, e.g. "produce PWM signal at 1000 Hz and 50% duty cycle" and then have an Arduino on the receiving end that starts producing the signal, until it receives a "stop!" message to stop the output.
I saw same example with potentiometer. It received value from pot and and map them also it transmitted to another Bluetooth module and it drove the motor. It's possible
But for mpg the conditions are different cause it generates pulse dependent hand speed.
I must do it for CNC MPG port. I must receive pulse and transmit to port.
Thanks for your answer it's very useful.