SpectraSonde Assembly

1
SpectraSonde Assembly
2
What is the SpectraSonde?
Reads temperature, pressure, and humidity data
from the atmosphere. The SpectraSonde doesnt fly
like some of its other AnaSonde relatives, but is
rather an on-the-ground test making it a perfect
educational tool. This data can be plotted and
used to determine the weather, what type of
pressure system is located where the test site
is, etc.
?
?
?
3
What Equipment do I Need?
SpectraSonde Kit Circuit Board Components (parts)
Hardware Antenna Hand-Held Radio,
Cable Computer AnaSonde Software SondeWorks CW Get
?
?
?
?
?
?
?
?
4
Necessary Tools for Assembly
Parts list and instructions Solder Soldering
Iron Wire cutters Tip cleaner/Wet sponge Clamp
(optional) Safety Goggles!
?
?
?
?
?
?
?
5
SpectraSonde Kit Breakdown
?
Circuit board U1 78LO5 voltage regulator U2
microcontroller D1 light emitting diode
(LED) R1 620 ohm resistor (Blue, Red, Brown,
Gold) R2 300 ohm resistor (Orange, Black, Brown,
Gold) C1, C2 0.1 µF capacitor
S1, S2 switch SP1 buzzer B1 9-volt battery
snap 8-pin socket for U2 T LM19 temperature
sensor P ASDX015A24R pressure sensor (this is
loose inside the box) RH HIH-4000 humidity
sensor
?
?
?
?
?
?
?
?
?
?
?
?
?
6
A Quick Lesson on How to Solder
Soldering is the joining of metals by a fusion of
alloys which have relatively low melting
points. Be VERY careful! Soldering iron is HOT!
Tie up your hair! You do not want it hanging in
the way of the hot iron! Wear safety goggles at
ALL times! Eye protection is VERY important!
7

• Apply a very small amount of solder to the
  soldering irons tip. This is called tinning. It
  makes it easier to solder. (Note This is not the
  solder that will make the connection.)
• Place the part into its correct spot on the
  circuit board. Bend the leads if you need to in
  order to hold it in place. Once the component is
  secured on the board, heat up the component and
  the board with the soldering iron.

8

• Once heated, touch the solder to the lead
  and the board, not to the iron tip.
• Once solder is applied, stop applying solder
  and then remove the tip. Allow to cool.
• After the part has cooled, clip the leads
  (the ends) of the part so that they dont
  stick out far.

9
Soldering Tips
?
Keep your iron on the holder when not in use. It
WILL burn something if placed somewhere else.
If you create a solder bridge by accident, you
can use copper braid to pull out some of the
solder by placing it over the bridge and holding
the soldering iron to it for 10-20 seconds at a
time.
?
10
Soldering Tips
?
You do NOT need to push all of the parts all the
way down to the board. In fact, it is better if
parts such as D1, U1, the speaker, temperature
sensor, and humidity sensor remain a little above
the board. (See pictures as you go along.) Other
components such as U2, R1 and R2, S1 and S2, and
others should be placed as close as they can be
to the board. (Again, see the pictures for
verification.)
11
Do Not Let Solder Bridges Occur!
Make sure you put on enough solder to make the
connection but not so much the circuit is shorted.
Too much solder Bridges
Too little solder Holes
12
Perfect Amount of Solder
No gaps between the board and the part because
there is too little, and no bridges because there
is too much.
Perfect Amount
13
Lets Start Assembling Our SpectraSonde!

• Plug in soldering iron and place on stand.
• Wet the sponge.
• Look at circuit board and identify
• Component Side (with white labels)
• Solder Side (with no labels)
• Throughout assembly process, it may be helpful to
  bend leads, clip, or tape parts to hold them in
  place.

14
Installing socket for U2
U2 is direction sensitive! Line up notch of U2
with the notch drawn on the circuit board!
?
15
Tips for Socket Installation
Using alligator clips to hold the socket in place
may make soldering this easier.
?
16
Install R1 and R2
Bend the leads of R1 and R2 so that they fit into
their holes on the board nicely and easily.
Once the resistor has been put through the
holes, bend the leads in back a little so that it
stays in place while you solder.
?
?
17
After R1 and R2 Installation
18
Install U1
U1 is direction sensitive! Be certain that the
flat edge matches up with the flat edge drawn in
white on the circuit board. Also U1 looks just
like the temperature sensor- Make sure this is
78LO5 (read the label). Do not mix them up!
?
?
19
Install C1 and C2
20
Install S1 and S2
21
Install D1
?
This diagram of D1 is showing us that the lead on
the same side as the lip on the diode is the
number 3 lead, which is anode green. The lead
on the other side, number 1, is anode red.
Look at the LED and make sure that you put the
correct lead into the correct spot on the board.
This is VERY important! The holes are labeled on
the board, green and red.
22
Install D1 continued
Like with the socket, you can use alligator clips
to hold D1 and the board in place to make
soldering easier.
?
23
After D1 Installation
24
Installing the Sensors
25
Temperature
When you are installing the temperature sensor,
be sure that the individual leads go into the
correct holes on the board. Match the labels in
this picture with the white labels on the
board. DONT push the sensor all of the way down
to the board!
?

T
?
g
?
26
Humidity
Like the temperature sensor, when you are
installing the humidity sensor, be sure that the
individual leads go into the correct holes on the
board. Match the labels in this picture with
the white labels on the board. DONT push the
sensor all of the way down to the board! DON'T
touch the sensor chip!
?
g
?
RH

?
27
Pressure
The pressure sensor has a notch cut out of pin 1.
This pin goes into the hole with the oval pad on
the board. Once this is matched up, there
is only one way that the sensor will fit into the
holes on the board.
?
?
?
?
28
After Sensor Installation
29
Install SP1
30
Install the Battery Snap
The battery snap must have the red lead going to
the positive and the black going to the negative.
Thread the wire up through the bigger holes to
the side of the and holes, and then bring
them back down through the and holes
accordingly.
31
Install the Battery Snap
32
Install U2, the Microcontroller
33
Your SpectraSonde is Ready to Go!
To test, connect a 9-volt battery to the battery
snap and turn on. If the LED starts to blink, it
works!
?