AnaSonde-3M Assembly

What is the AnaSonde-3M?

The AnaSonde-3M reads temperature, pressure and humidity data from the atmosphere.

After the AnaSonde is sent into the atmosphere, it radios the data back down to a computer on Earth.

The data we receive from the AnaSonde can be plotted and used to determine the weather in the upper atmosphere, what type of pressure system exists above the launch site, etc.

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What Equipment do I Need to Operate the AnaSonde-3M?

Hardware

Circuit Board

Components (parts)

Parachute

Sun Shield

Antenna

Hand-Held Radio, Cable

Computer

AnaSonde Software

Sondeworks

CW Get

AnaSonde Kit

Necessary Tools for Assembly

Parts list and Instructions

Solder

Soldering Iron

Wire Cutters

Tip Cleaner/ Wet Sponge

Alligator Clips (optional)

Safety Goggles!

Copper Braid for desoldering (optional)

AnaSonde-3M Kit Breakdown

1) Circuit Board

2) U1: Voltage Regulator

3) U2: Microcontroller

4) 14-pin Socket for U2

5) U3: 433.92 MHz Transmitter

6) X1: 4 MHz resonator

7) D1: Light Emitting Diode

8) R1: 620 ohm Resistor

9) R2: 22k ohm Resistor

10) C1, C2, C3: 0.1 µF Capacitor

11) S1: Switch

12) LM19 Temperature Sensor

13) HIH-4000 Humidity Sensor

14) ASDX015A24R Pressure Sensor

15) 9-volt Battery Snap

16) 1 Antenna Wire, approx. 6.5” long

17) J1: 4-pin connector

18) 1.5x5” Index Card

19) Space Blanket

20) Nylon Mesh

21) Balloon

22) Cable Tie

23) Two 6-ft pieces of Dacron Line

*See next slide for tupicure

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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!

A Quick Lesson on How to Solder

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 Begin Assembling Our AnaSonde-3M!

Install the Socket for U2

Install R1 and R2

It helps to bend the leads of the resistor first before installation and then bending them a bit again once the resistor is inserted into the holes on the board to keep itin place.

R1: Blue, Red, Maroon stripesR2: Red, Red, Orange stripes

After R1 and R2 Installation

Install C1, C2, and C3

You can use alligator clips forthis step to make it easier if need be.

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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!

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Install S1 and D1

D1 is direction sensitive! The longer lead goes into the hole for D1 with the + next to it.

This may be another step made easier by using the alligator clips to hold D1

Make sure that the switch is in the “off” position at this time.

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Install X1 and J1

X1 (the brown package) is not direction sensitive.

J1 is the 4-pin connector. This is direction sensitive! Make sure that the clip is towards the inside of the board.

There is a little box outline on the board toshow this.

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Sensor Installation

Temperature

+

T

g

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!

When you are installing the temperature sensor, be sure that the individual leads go into the correct holes on the board.

Make sure that this IS the LM19 package and NOT 78LO5, U1.

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Humidity

g

RH

+

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.

DON’T push the sensor all of the way down to the board!

DON'T touch the sensor chip!

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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.

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After Sensor Installation

Install U3

U3 is the transmitter. This is direction sensitive!

There is a little notch drawn on the board that should line up withThe circle that sticks out of the transmitter with ND R433 written on it.Make sure that this is installed correctly.

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Install the Antenna

The antenna is installed into the hole on the end of the board labeled “ant”.

Bend the antenna so that it sticks straight out from the board.

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Install the 9-volt Battery SnapThe 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 9-volt Battery Snap

Install U2 Microcontroller

Test the AnaSonde!

Plug-in a 9-volt battery to the snap and turn the switch to the 'on' position.

If the LED starts to blink, you're ready to go!

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