Transcript SpectraSonde Assembly

SpectraSonde Assembly
What is the SpectraSonde?
✔ Reads temperature, pressure, and humidity data from the
atmosphere.
✔ The SpectraSonde doesn’t 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.
What Equipment do I Need?
SpectraSonde Kit
Hardware
 Circuit Board
 Antenna
 Components (parts)
 Hand-Held Radio, Cable
 Computer
 AnaSonde Software
 SondeWorks
 CW Get
Necessary Tools for Assembly
 Parts list and instructions
 Solder
 Soldering Iron
 Wire cutters
 Tip cleaner/Wet sponge
 Clamp (optional)
 Safety Goggles!
SpectraSonde Kit Breakdown
 Circuit board
 S1, S2: switch
 U1: 78LO5 voltage regulator
 U2: microcontroller
 SP1: buzzer
 B1: 9-volt battery snap
 D1: light emitting diode (LED)
 8-pin socket for U2
 R1: 620 ohm resistor (Blue,
 T: LM19 temperature sensor
 P: ASDX015A24R pressure
Red, Brown, Gold)
 R2: 300 ohm resistor (Orange,
Black, Brown, Gold)
 C1, C2: 0.1 μF capacitor
sensor (this is loose inside the
box)
 RH: HIH-4000 humidity sensor
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!
1. Apply a very small amount of solder to the
soldering iron’s tip. This is called tinning. It
makes it easier to solder. (Note: This is not the
solder that will make the connection.)
2. 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.
1. Once heated, touch the solder to the lead
and the board, not to the iron tip.
2. Once solder is applied, stop applying solder
and then remove the tip. Allow to cool.
3. After the part has cooled, clip the leads
(the ends) of the part so that they don’t
stick out far.
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 1020 seconds at a time.
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.)
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
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
Let’s Start Assembling Our
SpectraSonde!
1. Plug in soldering iron and place on stand.
2. Wet the sponge.
3. Look at circuit board and identify:

Component Side (with white labels)

Solder Side (with no labels)
4. Throughout assembly process, it may be helpful to bend
leads, clip, or tape parts to hold them in place.
Installing socket for U2
✔ U2 is direction sensitive! Line up notch of U2
with the notch drawn on the circuit board!
Tips for Socket Installation
✔ Using alligator clips to hold the socket in place
may make soldering this easier.
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.
After R1 and R2 Installation
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!
Install C1 and C2
Install S1 and S2
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.
Install D1 continued
✔ Like with the socket, you can use alligator clips to hold D1
and the board in place to make soldering easier.
After D1 Installation
Installing the Sensors
Temperature
✔ When you are installing the
+
T
g
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.
✔ DON’T push the sensor all of
the way down to the board!
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.
g
✔ Match the labels in this picture
RH
with the white labels on the
board.
+
✔ DON’T push the sensor all of
the way down to the board!
DON'T touch the sensor chip!
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.
After Sensor Installation
Install SP1
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.
Install the Battery Snap
Install U2, the Microcontroller
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!