2 A motor shield

[zhengkoon8]

Hi,
I am doing some FYP, I look and learn the code programming for Arduino, and I am wonder can I program Arduino using this shield to perform speed and different direction? I know that the shield can perform PWM and PLL but i can only choose one of it to perform. if there any suggestion?

secondly, is the any way i can know the duration time when the current is supply to the motor for programming? i know that is a millis() function. but it cannot be use to detect when i start supply current for the motor.

Please reply as soon as possible. thank you very much and very appreciate for answering the question.

regards

zheng koon

[robosang]

Hi,
I am doing some FYP, I look and learn the code programming for Arduino, and I am wonder can I program Arduino using this shield to perform speed and different direction? I know that the shield can perform PWM and PLL but i can only choose one of it to perform. if there any suggestion?

secondly, is the any way i can know the duration time when the current is supply to the motor for programming? i know that is a millis() function. but it cannot be use to detect when i start supply current for the motor.

Please reply as soon as possible. thank you very much and very appreciate for answering the question.

regards

zheng koon

You say you study PWM and PLL? So what is the PWM and PPL?

[zhengkoon8]

PWM is pulse mode modelation while PLL is phase lock loop.

can advice will you give me so that i able to do what i want?

thank you very much for your reply

[ABSF]

PWM is pulse mode modelation

No, PWM is Pulse Width Modulation.

Do you know what is BMW?

Allen

[zhengkoon8]

Hi Allen,

thanks for reply. sorry for typing wrong for it. but i seriously dont know what is BWM. can you tell me? thanks

regards

zheng koon

[ABSF]

BMW is "Black Magic Woman"

Allen

[Brian Griffin]

BMW is "Black Magic Woman"

Allen

Man, it's been some time since I heard of that song. My pa's old vinyl collection still has it!

[ABSF]

@Brian, was it sung by Santana or something like that?

secondly, is there any way i can know the duration when the current is supplied to the motor for programming purpose? i know there is a millis() function. but it cannot be use to detect when i start supply current for the motor.

millis() is a non-stop running variable counting in milli-seconds. It expires in 50 days so it should be good for timing any events. So if you want to know the duration the motor is running, just do it this way:

1. start the motor.
2. take unsigned long T1=millis()
3. do your other stuffs
4. stop motor
5. take unsigned long T2=millis()
6. duration of motor running=(T2 - T1) in ms.

Is that what you want?

Allen

[Brian Griffin]

@ ABSF - yes, it's by Santana and some other guys which I don't really know them. My sibling's a blues enthuiast, maybe he'll know.

Btw, PWM = pulse width modulation. The ON/OFF width of the square pulses determines the amount of voltage.

I can't explain to you what's a PLL because I had not studied much on it. Others can give a more layman explaination on PLL.

[zhengkoon8]

Hi
Thanks Brian for reply appreciate it