The_UnforgiveN
New Member
Maybe it sounds weird, I don't know ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I have a question. I have a brushless motor driver. It's speed is controller via a potentiometer. Motor controller has 3x1 socket. I connect 3 pins of the pot to this socket and I can control the speed of the motor with this pot.
But, I need to digitalize this process. I want to use a serial interface. I will connect a PC to a PIC micro via RS232 and control the speed of the motor. How would the circuit be to achive this, not in the serial communication but in voltage divider part?
There exist 5V across the pot. When it's divided as 1.3V and 3.7V the motor starts rotating. When it comes to 4.2V and 0.8V, it reaches maximum.
Should I use two PWM outputs to generate this voltage couples? Or any other alternative way? I do not have any datasheet or other information about the motor controller. It's a chinese product.
Thanks in advance.
I have a question. I have a brushless motor driver. It's speed is controller via a potentiometer. Motor controller has 3x1 socket. I connect 3 pins of the pot to this socket and I can control the speed of the motor with this pot.
But, I need to digitalize this process. I want to use a serial interface. I will connect a PC to a PIC micro via RS232 and control the speed of the motor. How would the circuit be to achive this, not in the serial communication but in voltage divider part?
There exist 5V across the pot. When it's divided as 1.3V and 3.7V the motor starts rotating. When it comes to 4.2V and 0.8V, it reaches maximum.
Should I use two PWM outputs to generate this voltage couples? Or any other alternative way? I do not have any datasheet or other information about the motor controller. It's a chinese product.
Thanks in advance.