|
After
success of
PM1 LCD RF
Power
Meter
Kits,
which were
sold
globally,
I decided
to remove
some of
the
hitches I
had in
preparing
PM1 kits.
The
First
trouble
was rotary
encoder,
which I
had to
import.
The
second,
there was
a
suggestion
that,
instead of
separate
sensor
board,
sensors
should be
integrated
and to use
DIP8
packages
for
AD8307s.
2x20
LCDs are
available
with or
without
Back
Light.
There is
practically
no price
difference
between
two types.
I will be
supplying
LCDs with
BL. 2x20
displays
also come
with
reverse BL
connections.
I have
added a
selection
header for
this
purpose.
I
have
replaced
rotary
encoder
and now we
have two
push
buttons to
control
the
functions.
Very cost
effective
&
simple to
use. 4 Push buttons used in this kit are right
angle type
and are sufficiently long enough to come out of the box, if you
decide to
house this
meter in a case.
However, If
you wish
to use a rotary
encoder,
nothing is
lost in
this kit.
Just buy a
rotary
encoder
from Digikey
or Mouser
and you
have three
connections
ready to
install
it.
This
new LCD RF
Power
Meter with
dual
500MHZ
input
channels
just
measures
12cm x 6cm |
