Is it advisable to use a separate micro-controller for servo motor controller of a robot rather than using only one micro-controller for the whole system and why?
Yes, most MCU's can not multi task it can run only one program at a time, so if you run a stepperor servo motor from one MCU it will slow down the whole program so, if you have send the command from the main MCU to the other one that is controlling the stepper or servo the main MCU can go on doing other things while the stepper MCU can take its time taking the stepper motor thru its paces If you have to run more than one stepper and using only one MCU, the MCU will have to drive the one stepper with one pulse and then the next stepper, you don't need a large MCU to drive a stepper only 4 bits is needed a 8 pin PIC like the PIC12F675 is all you need, GP0 to GP3 can drive the stepper while the chip can receive commands on GP5 that is a input pin only ,then you still have GP4 spare to drive a LED or a relay or you can use it as a DTR to send an interrupt to the main MCU and tell it that its done with the last command and ready for the next.
A string of commands can be received by the 12F675 in serie on one pin and be stored in onboard EEPROM for use as needed
Why do you think the trend is to put more control such as the graphics controller and the memory controller in the processor rather than in the chipset?
Can you replace your gauze with a cold towel a while after a wisdom tooth extraction In other words is it okay to use a cold strip of cloth to hold back the bleeding rather than gauze?
When shooting an arrow at a target why is it advisable to aim above the bulls eye rather than directly at it?
Depending rather on the application, required speed etc, you would use either a fluid-flywheel drive powered by an electric or internal-combustion motor; or a hydraulic motor driven from a separate prime-move and pump. The cylinder does not roate! You may well find it more efficient to go all-electric, witha three-phase motor and electronic controller.
An IDE (Integrated Drive Electronics) is the controlling interface for the hard disc or optical drive (CD ROM etc.). The controller was integrated (hence the name) into the hard disc unit rather than being mounted on the computers motherboard. The first IDE units appeared in 1986 and has been replaced by the ATAPI (SATA) drives today.
In teaching kids how to speak in public it is advisable that teachers let children research for their subject rather than memorizing and reciting speeches. In this way, they would also learn how to develop their own thought and opinions. Make the subject "Public Speaking" more interesting to them rather than a traumatic one. Encourage them to speak and show them that you are interested on their thoughts and opinions.
Separate from what? From force? - It turns out that considering pressure, rather than force, simplifies many calculations. For example: all parts of a gas or liquid in a closed container have the same pressure. Now if you consider force, that would not be constant, but rather depend on the area in contact: more area = more force in this case. - Now, if you refer to the SI units: you could use the derived…