Issue
138 January 2002
An RF-Controlled
Irrigation System
by
Brian Millier
Start
• Controller/Receiver
• Encoder/Decoder •
The Firmware • Time's
Up • Sources
& PDF
SOURCES & PDF
Author’s
Note: I want to thank John Barclay of Abacom Technologies
for the support and samples that helped out significantly
while I was putting this article together.
Brian
Millier is an instrumentation engineer in the Chemistry
Department of Dalhousie University, Halifax, Canada. He
also runs Computer Interface Consultants. You may reach
him at brian.millier@dal.ca.
SOFTWARE
Download
the code.
REFERENCES
[1]
Atmel Corp., "8-bit AVR Microcontroller
with 8K Bytes In-System Programmable Flash—AT90S8535
AT90LS8535," rev. 1041GS, September
2001.
[2]
P. Birnie and J. Fairall, An Introduction
to Low Power Radio, Character Press Ltd.,
UK, 1999.
[3]
Holtek Semiconductor Inc., "212 Series of
Decoders," July 12, 1999.
[4]
———, "HT12A/HT12E 212 Series of Encoders,"
April 11, 2000.
SOURES
AT-MT1-418
AM Transmitter module
Abacom Technologies
(416) 236-3858
Fax: (416) 236-8866
www.abacom-tech.com
AT90S8535-8PC
Microcontroller
Atmel
Corp.
(714) 282-8080
Fax: (714) 282-0500
www.atmel.com
HT12D/E
Decoder chip
Holtek Semiconductor Inc.
(510) 252-9880
Fax: (510) 252-9885
www.holtek.com
BASCOM-AVR
Compiler/programmer
MCS
Electronics
31 75 6148799
Fax: 31 75 6144189
www.mcselec.com
