CONTENTS:

• Basic stamp
  • Editorial about popular BASIC Stamp of the Parallax firm. Detailed description and orders with instructions are given.
• More keys with single line
• Chipchorder
  • Editorial about ISD circuit of the ISD firm.
• SCADA systems
  • The text about presentation of SCADA systems' structure. Distributional SCADA systems -
    - WASCAD with detailed illustrations.
• DSP ,Basic concepts
  • The text introduces the basic components of DSP, the concepts of digital and analogous signals, the advantages of digital signal processing. A reader is briefly informed about the history of DSP of the Texas Instruments firm..
• Temperature transmitters
  • The column "Industrial measurements" analyses a connection of XTR103 of the Burr - Brown firm with a sensor.
• SIMATIC S5
  • Instructions and technical details of Siemens' series of Programmable Logical Controller SIMATIC S5.
• Audio output amplifier 100/140W
  • How to make an audio amplifier with a complete scheme and a prospect of printing boards.
• Real Time systems
  • Editorial about the Real Time systems - how do they work? why are they in use and what is their advantage over the standard way of programming the systems in use.
• A Microcontroller ... what is it?
  • The text introduces the microcontrollers and their formations to the reader.
• AT89C20651 microcontroller with 2Kb Flash memory
• Connection of AD converter with 68HC11
  • An example of connection of AD 574 on MC68HC11. An assembly listing with comments
    was added to the scheme in the text.
• Smart LCD - what and how?
  • In everyday work there is a need for visualization of data by using LCD display. There are instructions for use of LCD display in the text as well as a complete listing with comments.
• Bit by Bit.
  • The topic of this short supplement is testing of bits and conditional jumps
• AT89C20651 microcontroller with 2Kb Flash memory
  • Introducing forms and shapes (formations, constructions)