Data Module at 315-434 MHz.'
3. Locate the product box at the bottom of the web
page. Don't get scared when you see the cost of shipping
listed below the product box. The ‘Place Order’ page has
a drop-down menu for selecting a lower shipping cost.
4. Click on 'Place Order - Shopping Cart.'
5. Click on the link 'RF Products' at the top of the
6. Select your product and then click 'Check Out.'
(Note: Minimum $40 order required)
Voice USA: 1-800-897-0525
Voice Canada: 905-762-1228
TLP434A Transmitter = $4.80
RLP434 Receiver = $4.80
Just click on the 'GPS & RF Components' tab on their
home page and select Transmitter/Receiver modules.
(NOTE: Minimum $50 order required)
ABRA Electronics, Inc.
1320 State Route 9, #21
Champlain, NY 12919
Just type WRL-10534 into the search box for the 434
MHz transmitter at $3.95 each, or type in WRL-10532 for
the 434 MHz receiver at $4.95 each.
Front Desk: 303-284-0979
(Monday through Friday, 9 am to 5 pm, Mountain Time)
WRL-10532 434 MHz Receiver = $4.95 each
WRL-10534 434 MHz Transmitter = $3.95 each
1. Click the Wireless link on the side menu.
2. Scroll down and select the transmitter and receiver.
The antennas for the alarm system can be purchase
from the following sources:
Type “430-470 MHz UHF two-way radio whip” into
the search box on the home page.
Type “UHF Antenna NAE6483AR for MOTOROLA
GP340” into the search box on the home page.
Planting a Seeed
Regarding Bryan Bergeron’s editorial entitled, "Sound
Off!" in the November 2013 issue — he may or may not
be aware of a more inexpensive MP3 module from
SeeedStudio. It has a lot of features for $9.90. You can
find out more about it at www.seeedstudio.com/depot/
I'm a big fan of SeeedStudio gear — especially the
grove system. Thanks for reminding me.
Great Bits of Info
Thank you for the "All About Clocks for PICs" article
and examples in the January 2014 issue. Readers who
enjoy PIC bit-banging might enjoy my PIC PWM manual,
posted on the Sierra Radio Systems site under Project
Gallery at www.hamstack.com/pwm.html. Code
examples use the free version of Swordfish Basic. These
40 plus examples use the PIC18F4620 and PIC18F46K22
chips, and the HamStack boards from Sierra Radio
Systems. However, it is easy to breadboard a "bare-bones"
READER FEEDBACK Continued from page 7
72 March 2014
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