Wireless Communication



-William R. Provancher
Link to my home page



RF Protocol Notes

         
RF Protocol notes
Chris Greenhalgh, 3/8/2001
 
http://www.crg.cs.nott.ac.uk/~cmg/Equator/Downloads/PICs/RF-notes.htm


Manchester Encoding Article


:http://www.quickbuilder.co.uk/qb/articles/  (includes some C-code to encode and decode into/from Manchester)

an additional reference on Manchester Encoding
http://www.erg.abdn.ac.uk/users/gorry/course/phy-pages/man.html



Manchester Encoding with PIC
http://ww1.microchip.com/downloads/en/AppNotes/91045a.pdf

Manchester Encoded remote control project
http://jap.hu/electronic/codec.html

Interfacing Chipcon's CC1020 with a PIC16
http://www.chipcon.com/files/AN_023_CC1020_MCU_Interfacing_1_0.pdf

Interfacing Chipcon's CC1000 with a PIC16 http://www.chipcon.com/files/AN_009_MCU_Interfacing_1_0.pdf
for a Microchip PIC16F876 (written for the IAR C compiler)















Wireless Vendors

         
Radiometrix Ltd


Radiometrix Ltd
Hartcran House
Gibbs Couch
Watford
Hertfordshire
WD19 5EZ
ENGLAND
Tel: +44 20 8428 1220
Fax: +44 20 8428 1221

General inquiries:
info@radiometrix.com

Sales:
sales@radiometrix.com

Technical support:
tech_support@radiometrix.com

Good for buying:
BiM2-433-64 RF tranceiver
Lynx

In the San Francisco area:
Basic Transceivers   (we've used the LC series (Txm/Rxm with some success)

Reynolds Electronics have made little boards for these chips (Transmitter / Receiver)

USB module


Nordic Semiconductor



Nice small package (5mm x 5mm), but sketchy documentation

e.g., nRF905 Multiband,   nRF903, or  nRF403 Transceivers 
Chipcon


Does integral Manchester encoding with SPI interface
Can get a dev board with all the basic connections
Have a variety with an integrated MCU (8051 arcitecture)


e.g.,
CC400 (300-500 MHz, 2Km range, SSOP-28, Datasheet), 
CC900 (800 to 1000 MHz, 500m range, SSOP-28, Datasheet),
CC1000 (300-1000 MHz), 28-pin TSSOP package  (Datasheet)     

 CC1010 (300-1000 MHz)     integrated  CC1000 with a MCU with 32K flash, 32 kB Flash, 2048 + 128 Byte SRAM, 3 channel 10 bit ADC, 4 timers /2 PWMs, 2 UARTs, RTC, Watchdog, · SPI, DES encryption, 26  general I/O pins.   2.7 - 3.6 V supply voltage, 64-lead TQFP       Datasheet  


Microchip

RFpic (a bit bulky)
http://ww1.microchip.com/downloads/en/DeviceDoc/70092a.pdf
RF microdevices


















Serial Encoders for RF

         

RF Solutions


Good for buying:
RF600x chips  with Manchester encoding and secure "Keeloq" code hopping
Jameco Electronics

In the San Francisco area:
Good for buying:




Good for buying:
fgfg


Good for buying:
fgfg


Good for buying:
fgfg


Good for buying:
misc lab electronics


Good for buying:
misc lab electronics


Good for buying:
misc lab electronics


Good for buying:
misc lab electronics




RS-232 Line Drivers

         

Dallas Seminconductor ( part of
Maxim Semiconductor )
In the San Francisco area:

Good for buying:
RS-232 Line Drivers
DS275 (single 8-pin RS-232 to CMOS Line Driver)
MAX232A (faster version of  MAX232 with dual RS-232 Line Drivers)
MAX233A (version of MAX232A that only requiresno external capacitors except for 1 bipass cap.)
MAX3235ECPP (low power DIP package with dual RS-232 Line Drivers)
Jameco Electronics

In the San Francisco area:
Good for buying:




Good for buying:
fgfg


Good for buying:
fgfg


Good for buying:
fgfg


Good for buying:
misc lab electronics


Good for buying:
misc lab electronics


Good for buying:
misc lab electronics


Good for buying:
misc lab electronics










     



    mini vibration sensor


     
                      
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