AnaSonde Assembly
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Transcript of AnaSonde Assembly
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AnaSonde AssemblyAnaSonde Assembly
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What is the AnaSonde?*Reads temperature, pressure, and humidity data from the atmosphere*After it is sent into the atmosphere, it radios the data back down to a computer on earth*This data can be plotted and used to determine the weather in the upper atmosphere, what type of pressure system is located above the launch location, etc.
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What Equipment Do I Need to What Equipment Do I Need to Operate an AnaSonde?Operate an AnaSonde?
• AnaSonde Kit– Circuit Board– Components– Parachute– Sun Shield
• Hardware– Antenna– Hand-held radio, cable– Computer– AnaSonde software (free!)
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Necessary Tools for AssemblyNecessary Tools for Assembly
1. Parts list and instructions
2. Solder3. Soldering Iron4. Wire Cutters5. Tip Cleaner/Wet
Sponge6. Safety
GOGGLES!
12
3
4
5
6
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AnaSonde Kit BreakdownAnaSonde Kit BreakdownCircuit BoardU1: 78L05 voltage regulatorU2: PIC12F675 microcontrollerU3: 433.92 MHz transmitterX1: 4 MHz resonatorD1: LEDR1: 620 ohm resistorC1, C2: 0.1 µF capacitorS1: Switch9-volt battery snap8 pin socket for U2Antenna wireLM19 temperature sensor
U2
U1U3
X1
D1
R1C1
C2
S1
9 volt snap
Socket
Antenna
LM19
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A A Quick Lesson on “How to Solder” 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!
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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 on its correct spot on the board. Bend the leads to hold it in place. Once the component is secured to the board, heat up the component lead and the board.
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3. Once heated, touch the solder to the lead and board, NOT to the iron tip.
4. Once solder is applied, stop applying solder and then remove tip. Allow to cool. Once the part has cooled, clip the ends of the part so they don’t stick out far.
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Soldering Tips• Keep your iron on the holder when not
using. 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 around 10-20 seconds at a time.
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Soldering Tips (Continued)• Finally, you do NOT need to push the parts
all the way down onto the board. In fact, it is better if parts such as D1, U1, the transmitter, the speaker and the temperature sensor remain above the board a little. (See pictures as you go along.) Things such as U2, C1 & 2, X1, R1, S1 and the battery snap should be placed as close as they can to the board.
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Do NOT let solder bridges to occur. Make sure you put on enough solder to
make the connection but not so much the circuit is shorted. You especially DON’T
want it to look like this!!!
Not enough solder Too much solder
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You do want to make sure that it looks like the below picture. No gaps between
the board and the part, but no bridges either.
Perfect amount of solder
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Let's Start Assembling Our Let's Start Assembling Our AnaSonde!AnaSonde!
1. Plug in soldering iron and place on stand2. Wet sponge if necessary3. Look at circuit board and identify:
−Component side (with white labels)−Solder side (no labels)
4. Throughout assembly process, can bend legs, clip, or tape parts to hold in place
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Installing Socket for U2Installing Socket for U2
U2 is direction sensitive! Line up notch on U2 with notch drawn on the circuit board!
Notch
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Tips for Socket InstallationTips for Socket Installation
Can clip U2 to board
using alligator clip
Can see small legs coming through to solder side
Solder goes on this side, 8 joints total
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Install R1 and D1Install R1 and D1Step 1: Bend R1 to hold in place. Solder one leg first. Then, reheat the solder and
push all the way through. R1 should be very close to surface
of circuit board.
Step 2: Solder D1 (the LED) in the same manner used for R1. Your circuit
board should now have U2, R1, and D1 components
installed.
CAUTION! D1 (the LED) is direction sensitive. Be sure to
solder the long leg into the positive (+) opening on the
circuit board.
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After R1 / D1 Installation
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Install U1: Be Careful!Install U1: Be Careful!
Caution!! U1, the voltage regulator, looks exactly like
the temperature sensor! Look for the label on the
flat side: 78L05
The U1 regulator is direction sensitive. The flat side of the black end should match up
with the flat edge of the white label on the circuit board.
U1: Voltage RegulatorDo not push in too far, leave some
height in the legs
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C1 and C2C1 and C2C1 and C2 are NOT direction sensitive.
C1 and C2 go on both sides of U1.
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S1: On/Off SwitchS1: On/Off Switch
MAKE SURE TO SET SWITCH TO THE OFF POSITION!
OFF
ON
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X1: 4 MHz ResonatorX1: 4 MHz Resonator
Bend one leg to hold in place.
Solder one leg. Reheat solder
and push resonator all the way through.
Solder remaining two
legs.
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Installing the Temperature SensorInstalling the Temperature Sensor
Ground
V out
+
Flat Side
The label on the flat side of this
one should read: LM19
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Final Instructions
• In the Buzz-E, the speaker must go where the transmitter would (U3), however it will go in the first two consecutive holes, NOT in the first and the last!
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Final Instructions (Continued)• The microcontroller has a little dot on one end, this
end will be the same direction as the notch in the socket. This must be pushed in all the way. (See picture on following slide.)
• Finally, the battery snap must have the red lead going to the positive and the black to the negative. Thread the lead up through the bigger holes on the sides of the + and – and then stick them back down through the + and – holes accordingly. (See picture on next slide).
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The Final Components!The Final Components!U3: Transmitter, Antenna Wire, Battery Snap, U2: MicrocontrollerU3: Transmitter, Antenna Wire, Battery Snap, U2: Microcontroller
BatterySnap
Microcontroller
U3: Transmitter
Antenna Wire
Speaker
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Your AnaSonde is ready to fly!
• First, let's connect our 9-volt battery and test our AnaSonde
• If it works, it is time to attach the parachute and balloon
• Fire up your computer and fly!
Anasphere, Inc.
106 Pronghorn Trail
Bozeman, MT 59718
(406) 994-9354 http://www.anasphere.com/