Microcontrollers

A microcontroller is a specialized integrated circuit which combines a processor and external memory inside the silicon wafer itself. You now have a customizable device that you can change its function just by re-programming it.

In addition as microcontrollers have been refiined you will find devices that have many other peripherals inside them. Where once you had to buy a UART IC (an RS232 communication device - to talk to a PC) and place it on the processor bus in addition to the RAM and the ROM; this device is now part of the microcontroller itself.

Here are the internal peripherals of the 16F88 a modern PIC microcontroller - this is just an example there are many more microcontroller manufacturers e.g. Atmel, Motorola, Zilog.

• RAM 386 Bytes.
• ROM 4096 words.
• EEPROM 256 Bytes.
• I/O 16 pins.
• Internal oscillator.
• Timer 1.
• Timer 2.
• Timer
  Six Sigma MBB - The Master of the Game
  The born leaders belonging to personality types INTJ and ENTJ are the most likely people to be selected to become Master Black Belts. This can be by design or can be pure coincidence. But what one can not disregard is the truth that they are in their positions because of their enviable character that separates them from the crowd. Characteristically, INTJs and ENTJs are strong in intuitive and judgmental abilities which make them stand up for all the right things and know when to act because of their impeccable sense of timing.Who Are Master Black Belts?Master Black Belts are experienced trained professionals bestowed with the responsibility of strategic implementation of projects. Their responsibilities encompass the whole gamut of Six Sigma implementation
  Each of these systems will use a microcontroller as their main control unit:
  • Car lock remote key fob.
  • TV Remote control.
  • Security system.
  • Electronic safe.
  • Car anti lock braking system.
  • Satelite decoder.
  • DVD player.
  • Toaster.

  A microcontroller is an all in one electronic integrated circuit with built in processor memory and peripherals that is also re-programmable.

  You may not be able to recognize the microcontroller as for cost savings its cheaper to build an ASIC (Application Specific Integrated Circuit). This is a custom chip designed only for the product which is mass produced in milliions making the cost of the device far cheaper than using an individual microcontroller.

  Nevertheless each system is based on a microcontroller.

  Electronic Circuit design has progressed from individual transistors which are based on silicon to placing thousands and then millions of transistors on a single silicon wafer. The transistors, arranged in the correct configuration, perform different functions such as time delays, boolean logic, memory etc.

  7400 series logic

  Still available today are the older 74 series devices. These are ICs encased in plastic with connection pins on the outside and each one performs a different well defined function.

  By grouping these devices together you can make up circuits by connecting the pins of the device to pins of other devices. About 20 years ago this was the only way of making digital electronic systems and you would typically have racks of circuit boards each with 50 of these devices wired up.

  More transistors

  Of course the disadvantage of these racks of circuit boards is that once you have designed the board you can not change it so you had to be absolutely sure that the design was perfect. If it was not then you had to start over - and for a complex system that means spending money on a new circuit board and spending time re-designing it.

  With the advance of manufacturing techniques more transistors can be put on the silicon wafer - and if you can get more transistors on a wafer there are two advantages.

  1. Increased functionalty.
  2. Higher speed.

  Smaller transistors means smaller physical problems (capacitance slows down a devcie - so a smaller device has less) and they also use less current. Less current means less power and less power means less heat and less heat means that the device can operate faster.

  Given enough transistors you can design a circuit (or Integrated Circuit - ICs) to perform virtually any function you can think and using a special form of transistor (flash memory) means that the device can store information for years - this memory is also re-programmable.

  Processor

  The next stage in development was creating the processor which is a specialised circuit in which the function of the device is not set at all. Instead the device is capable of performing different functions when it is given different inputs and not only that - it has a small amount of ram inside used for internal temporary storage (registers) - and this lets it remember a sequence of events.

  When you combine this device with two types external memory (other ICs) you can make a system that can follow a defined sequence of events. By reading instructions from the memory (ROM) the processor knows what it should be doing as its next event sequence and it can store data in external RAM memory.

  • ROM - Read Only Memory (permament)
  • RAM - Random access memory (temporary - when power goes info is lost).

  In addition the processor can read the state of input pins and set the state of output pins so it can react to the outside world e.g. turn on a light or read a key press.

  You can see where this is going - it's a device that has re-programmable memory and has many of the building blocks (7400 series) although now greatly refined and adapted inside the device - it's the microcontroller.

  Microcontrollers

  A microcontroller is a specialized integrated circuit which combines a processor and external memory inside the silicon wafer itself. You now have a customizable device that you can change its function just by re-programming it.

  In addition as microcontrollers have been refiined you will find devices that have many other peripherals inside them. Where once you had to buy a UART IC (an RS232 communication device - to talk to a PC) and place it on the processor bus in addition to the RAM and the ROM; this device is now part of the microcontroller itself.

  Here are the internal peripherals of the 16F88 a modern PIC microcontroller - this is just an example there are many more microcontroller manufacturers e.g. Atmel, Motorola, Zilog.

  • RAM 386 Bytes.
  • ROM 4096 words.
  • EEPROM 256 Bytes.
  • I/O 16 pins.
  • Internal oscillator.
  • Timer 1.
  • Timer 2.
  • Timer
    Router - Transmitting Packets
    In a previous article we discussed the basics of what a router did. We're now going to get into a more detailed, and yes technical, explanation of how packets are transmitted as well as a few other tech specs of how routers work. So put on your learning caps because you're in for a real mind bender.Internet data, whether it be in the form of a web page, a downloaded file or an email message, travels over what is called a packet switching network. Basically what happens is that the data is broken up into individual packets because there is only so much data that can be transmitted at one time. Each packet is about 1500 bytes long. Each packet contains quite a bit of information including the sender's address, the receiver's address and of course the information
    . The transistors, arranged in the correct configuration, perform different functions such as time delays, boolean logic, memory etc.

    7400 series logic

    Still available today are the older 74 series devices. These are ICs encased in plastic with connection pins on the outside and each one performs a different well defined function.

    By grouping these devices together you can make up circuits by connecting the pins of the device to pins of other devices. About 20 years ago this was the only way of making digital electronic systems and you would typically have racks of circuit boards each with 50 of these devices wired up.

    More transistors

    Of course the disadvantage of these racks of circuit boards is that once you have designed the board you can not change it so you had to be absolutely sure that the design was perfect. If it was not then you had to start over - and for a complex system that means spending money on a new circuit board and spending time re-designing it.

    With the advance of manufacturing techniques more transistors can be put on the silicon wafer - and if you can get more transistors on a wafer there are two advantages.

    1. Increased functionalty.
    2. Higher speed.

    Smaller transistors means smaller physical problems (capacitance slows down a devcie - so a smaller device has less) and they also use less current. Less current means less power and less power means less heat and less heat means that the device can operate faster.

    Given enough transistors you can design a circuit (or Integrated Circuit - ICs) to perform virtually any function you can think and using a special form of transistor (flash memory) means that the device can store information for years - this memory is also re-programmable.

    Processor

    The next stage in development was creating the processor which is a specialised circuit in which the function of the device is not set at all. Instead the device is capable of performing different functions when it is given different inputs and not only that - it has a small amount of ram inside used for internal temporary storage (registers) - and this lets it remember a sequence of events.

    When you combine this device with two types external memory (other ICs) you can make a system that can follow a defined sequence of events. By reading instructions from the memory (ROM) the processor knows what it should be doing as its next event sequence and it can store data in external RAM memory.

    • ROM - Read Only Memory (permament)
    • RAM - Random access memory (temporary - when power goes info is lost).

    In addition the processor can read the state of input pins and set the state of output pins so it can react to the outside world e.g. turn on a light or read a key press.

    You can see where this is going - it's a device that has re-programmable memory and has many of the building blocks (7400 series) although now greatly refined and adapted inside the device - it's the microcontroller.

    Microcontrollers

    A microcontroller is a specialized integrated circuit which combines a processor and external memory inside the silicon wafer itself. You now have a customizable device that you can change its function just by re-programming it.

    In addition as microcontrollers have been refiined you will find devices that have many other peripherals inside them. Where once you had to buy a UART IC (an RS232 communication device - to talk to a PC) and place it on the processor bus in addition to the RAM and the ROM; this device is now part of the microcontroller itself.

    Here are the internal peripherals of the 16F88 a modern PIC microcontroller - this is just an example there are many more microcontroller manufacturers e.g. Atmel, Motorola, Zilog.

    • RAM 386 Bytes.
    • ROM 4096 words.
    • EEPROM 256 Bytes.
    • I/O 16 pins.
    • Internal oscillator.
    • Timer 1.
    • Timer 2.
    • Timer
      My Magic Carpet
      Years ago growing up as a poor young boy in Pennsylvania, I would often fantasize about having a magic carpet or a time machine to go back to a world long gone.A time machine or a magic carpet would be the vehicle to transport me back to the Civil War which has been and always will be one of my favorite times in history.On my 15th birthday, my Aunt Elaine gave me three Civil War Tokens. Suddenly I woke up. Here was my magic carpet that I had fantasized all these years. The coins are a magic carpet. Holding them in your hand, you can fantasize about that moment in time. You can go back to 1864 and try to imagine what life was like without the computer, without the automobile, running water, electricity and all the thousands of things we have come accustomed t
      .

      With the advance of manufacturing techniques more transistors can be put on the silicon wafer - and if you can get more transistors on a wafer there are two advantages.

      1. Increased functionalty.
      2. Higher speed.

      Smaller transistors means smaller physical problems (capacitance slows down a devcie - so a smaller device has less) and they also use less current. Less current means less power and less power means less heat and less heat means that the device can operate faster.

      Given enough transistors you can design a circuit (or Integrated Circuit - ICs) to perform virtually any function you can think and using a special form of transistor (flash memory) means that the device can store information for years - this memory is also re-programmable.

      Processor

      The next stage in development was creating the processor which is a specialised circuit in which the function of the device is not set at all. Instead the device is capable of performing different functions when it is given different inputs and not only that - it has a small amount of ram inside used for internal temporary storage (registers) - and this lets it remember a sequence of events.

      When you combine this device with two types external memory (other ICs) you can make a system that can follow a defined sequence of events. By reading instructions from the memory (ROM) the processor knows what it should be doing as its next event sequence and it can store data in external RAM memory.

      • ROM - Read Only Memory (permament)
      • RAM - Random access memory (temporary - when power goes info is lost).

      In addition the processor can read the state of input pins and set the state of output pins so it can react to the outside world e.g. turn on a light or read a key press.

      You can see where this is going - it's a device that has re-programmable memory and has many of the building blocks (7400 series) although now greatly refined and adapted inside the device - it's the microcontroller.

      Microcontrollers

      A microcontroller is a specialized integrated circuit which combines a processor and external memory inside the silicon wafer itself. You now have a customizable device that you can change its function just by re-programming it.

      In addition as microcontrollers have been refiined you will find devices that have many other peripherals inside them. Where once you had to buy a UART IC (an RS232 communication device - to talk to a PC) and place it on the processor bus in addition to the RAM and the ROM; this device is now part of the microcontroller itself.

      Here are the internal peripherals of the 16F88 a modern PIC microcontroller - this is just an example there are many more microcontroller manufacturers e.g. Atmel, Motorola, Zilog.

      • RAM 386 Bytes.
      • ROM 4096 words.
      • EEPROM 256 Bytes.
      • I/O 16 pins.
      • Internal oscillator.
      • Timer 1.
      • Timer 2.
      • Timer
        Why a Newbie Online Marketer Should Start As an Affiliate
        Navigating the intricate often tangled network of the worldwide web is an onerous task for the hardiest soul. Like a spiders web the www is a very complex and often a confusing maze. No wonder the terms web, spider, crawl etc. are commonly used terminology on the internet.You need guidance from seasoned veterans who could mentor you through the rough and the tumble and teach the complexities of online marketing. The best way to learn and find a mentor, remote though he may be is to start with an affiliate program. Joining an affiliate program helps you to find a good mentor as every online marketing guru has a system of taking their affiliates through the various complex system of internet marketing through their online courses and f*r*ee reports and tutorials.
        functions when it is given different inputs and not only that - it has a small amount of ram inside used for internal temporary storage (registers) - and this lets it remember a sequence of events.

        When you combine this device with two types external memory (other ICs) you can make a system that can follow a defined sequence of events. By reading instructions from the memory (ROM) the processor knows what it should be doing as its next event sequence and it can store data in external RAM memory.

        • ROM - Read Only Memory (permament)
        • RAM - Random access memory (temporary - when power goes info is lost).

        In addition the processor can read the state of input pins and set the state of output pins so it can react to the outside world e.g. turn on a light or read a key press.

        You can see where this is going - it's a device that has re-programmable memory and has many of the building blocks (7400 series) although now greatly refined and adapted inside the device - it's the microcontroller.

        Microcontrollers

        A microcontroller is a specialized integrated circuit which combines a processor and external memory inside the silicon wafer itself. You now have a customizable device that you can change its function just by re-programming it.

        In addition as microcontrollers have been refiined you will find devices that have many other peripherals inside them. Where once you had to buy a UART IC (an RS232 communication device - to talk to a PC) and place it on the processor bus in addition to the RAM and the ROM; this device is now part of the microcontroller itself.

        Here are the internal peripherals of the 16F88 a modern PIC microcontroller - this is just an example there are many more microcontroller manufacturers e.g. Atmel, Motorola, Zilog.

        • RAM 386 Bytes.
        • ROM 4096 words.
        • EEPROM 256 Bytes.
        • I/O 16 pins.
        • Internal oscillator.
        • Timer 1.
        • Timer 2.
        • Timer
          Article Submission Software - Remarkable Benefits To Blast Your Profits!
          Everyone who has a personal web site needs to think about how to promote it online in order to have great success. That is why understanding fully the benefits of article submission software; you can open a new way of carrying on your business online at a new level. The benefits of articles submission software not just a fairy tale it is a reality, so in order to persuade you let us have a look at what this tool can do.In order to have a successful business online and to persuade the people you want to attract to your business you need to have a reputable name and face in the Internet. Article submission software will help you to create such a name online.For your business you will need permanent traffic, no matter what product or service you want to promote
          troller.

          Microcontrollers

          A microcontroller is a specialized integrated circuit which combines a processor and external memory inside the silicon wafer itself. You now have a customizable device that you can change its function just by re-programming it.

          In addition as microcontrollers have been refiined you will find devices that have many other peripherals inside them. Where once you had to buy a UART IC (an RS232 communication device - to talk to a PC) and place it on the processor bus in addition to the RAM and the ROM; this device is now part of the microcontroller itself.

          Here are the internal peripherals of the 16F88 a modern PIC microcontroller - this is just an example there are many more microcontroller manufacturers e.g. Atmel, Motorola, Zilog.

          • RAM 386 Bytes.
          • ROM 4096 words.
          • EEPROM 256 Bytes.
          • I/O 16 pins.
          • Internal oscillator.
          • Timer 1.
          • Timer 2.
          • Timer 3.
          • USART. SSP - Synchronous Serial port I2C, SPI protocols.
          • CCP - Capture Compare PWM.
          • Analogue comparator 1.
          • Analogue comparator 2.
          • ADC multiplexed inputs from 7 pins.

          This an 18 pin IC which is as big as some of the original 7400 devices but it can do much more that those single chips. For instance you can make the following types of projects using it:

          • Universal Infrared decoder/encoder.
          • Ultrasonic tape measure.
          • Frequency counter.
          • Metal detector.

          Note: All of these projects can be made using the same device because you can re-program the microcontroller to do a different job.

          You can find more information here: microcontroller information and how to build a website that gets the click.