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Minimum Mass
Wireless LCD Display
Near Field Communications
(NFC)
A 2 line X 16
character LCD display
that is battery operated and works
without an external connection.
The basic MinThe basic Minimum Mass Wireless Coupler technology is
described and links to other projects on this site that use the Minimum
Mass Wireless Coupler are located on the web page,
Minimum
Mass
Wireless Coupler.
Its an adaptation of the 2X 16 LCD
project, by adding a fettite loop antenna,
two resistors, and a capacitor.
Here the display shows the output of the
10 bit scanning voltmeter
with Minimum Mass Wireless Coupler. Both the
ferrite loop antenna and the scanning voltmeterare described elsewhere on this site.
Downloads
Download the AVRStudio assembly source for the program:
rftruly040802A.asm
Download the AVRStudio assembly source for the include file:
vlfcw2313.inc
This project is an adaptation of
A serial interface for the Truly
MTC-C162DPLY-2N. Similar
to the
Minimum Mass
Wireless
Coupled Frequency Meter project,
the firmware was made by adapting that from a finished project. In this
case, the part of the code that makes the calls to check for and
retrieve data from the UART was modified to also makes calls to check
for and retrieve data from the Minimum Mass Wirelss Coupler. In this
way, the dispaly can accept and display input from either source, or
both at the same time if there was a reason to do that. The benefit is
that the display can be used with various other devices, such as the
scanning voltmeter without
the need to make a physical connection. Merely place the display near
the gizmo sending the signal and read the result.
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Contents ©2005 Richard Cappels All Rights Reserved.
http://www.projects.cappels.org/
First posted in March, 2005
Minor update September, 2007
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