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A MCU is a electronic micro chip that can be programmed to control appliances in the outside world, it can control lights, motors and all kinds of electrical and electronic appliances like opening doors, controlling surveillance cameras, analog to digital conversion and many more. With one MCU, one can do the work of many other electronic components and logic chips, The 8-bit PIC® microcontroller solutions feature a powerful architecture, flexible memory technologies, comprehensive easy-to-use development tools, comprehensive application notes, complete technical documentation and post design-in support through a worldwide sales and distribution network. Microchip is committed to easy migration across product families, providing seamless program memory expansion, pin compatibility, and a unified development environment for all products
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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
Sinking and sourcing capability of microcontroller?
Sinking and sourcing current refers to current going into and out of the MCU (respectively)
What is a micro controler unit MCU?
Answerit is a computer on a chip the basic difference between microprocessors &controllers is that processors consist of three parts ALU ,CONTROL UNIT ,REGISTERScontrollers consist of additional elements likeRAM,ROMAnswerit is a computer on a chip the basic difference between microprocessors &controllers is that processors consist of three parts ALU ,CONTROL UNIT ,REGISTERScontrollers consist of additional elements likeRAM,ROM
Define Task in embedded system?
Before we can explain what a "task" is in an embedded system it is important to understand that most embedded systems use a single microcontroller or microprocessor. The microcontroller (MCU) can do only one operation at a time but is fast enough to handle thousands of these operations per second (or much more, depending on the MCU). The application developer decomposes the application into a series of tasks (also known as threads or processes). Each task is given control of system resources by the real-time operating system (or some other scheduler) for a period of time and then yields control to another task. These tasks must share the MCU with all other tasks so it is important that no single task dominates the system. The developer assigns a priority to each task. The scheduler (in the real-time operating system) gives control of the system to the highest priority task that is ready to run, preempting any lower priority task that is currently in control of the system.
What is the 3 basic types of surface development?
There are three major kinds of surface development 1. parallel line development 2. radial line development 3. triangulation development By: Ossan abad
