Page 18 - Making PIC Microcontroller Instruments and Controllers
P. 18

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                     You will also need a hardware  progrannner  that lets  you  transfer the  programs you  write
                   on  your  PC ro  your  PIC microcontroller Prognmmers are available ftom mjcroEngine€ring
                   Labs for the  parallel port,  the RS232 sedal  port,  and the USB port  of your  computer These
                                       "orc-button
                   programmers  mrl€  it  a       click pmposition" to transfer  your program  fmm
                   your computer to the microcontmller and rur it without ever having to remove the MCU
                   from the board.  (The  USB  programmer  is recommended by me.)
                     The editing software needed to wdte and edit the  programs  before transferring  them
                   to lhe  programmer  and onto  (he  mioocontroller is a  part  of the compjler  package.  Other
                   editors are available at no charge from a number of other supplie{s. None is a better
                   choice than the editor provided.
                     The salient hardware features  (with some rcpetition by categories listed)  provided  on
                   the  LAB-Xl  are as follows:
                     The  foliowing inp&t capabilities  are  provided:

                   t  A 16 switch keypad
                   I  A reset switch
                   I  Three  potenliomete
                   :  IR (infrared detection capability) (no detector  provided)
                   a  Tempemtule sensing socket,  (no IC provided)
                   I  Real-time clock socket  (no IC  Fovided)
                   r  Sockets for experimenting with tfuee basic styles of  "one  wire" memory chips
                   r  Serial  interface for RS232  (IC is provided)
                   I  Serial interface for RS485  (no IC provided)
                   I  PC board holes are  provided  for other functions. See the microEngineering  Labs, Inc.



                     The following  or,tpul capabilifies are  provided:
                   r  Ten-LED bargraphs with eight programmable  LEDS
                   r  2line  x 2o-character LCD display module
                   I  A piezo  speakerAorn
                   I  DTMF capability  (digital  tones used by the  phone  company)
                   I  PwM  (pulse  width modulation) for various expenments
                   I  IR (infrared transmission capability) (no LED provided)
                   I  Two hobby radio control servo connectors  (no hobby servos  provided)
                   I  Sockets  for experimenting with (also mentioned earlier)
                      I  Serial  memories
                      :  A  to D conversion with l2-bit resolution
                      :  Real time clocks

                     The followlng I/O intefa.ss  are  provided:

                   t  RS232 interface with lC
                   I  RS485 intedace, socket only (The chip is inexpensive and easy to obtain.)
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