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. ✔ ✔ ✔

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: 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

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

P erfect 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 it in place. R1: Blue, Red, Maroon stripes R2: Red, Red, Orange stripes  

After R1 and R2 Installation

Install C1, C2, and C3 You can use alligator clips for this step to make it easier if need be. ✔

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 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. ✔ ✔ ✔

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 to show this. ✔ ✔ ✔

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. ✔ ✔ ✔ ✔

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! ✔ ✔ ✔ ✔

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 U3 U3 is the transmitter. This is direction sensitive! There is a little notch drawn on the board that should line up with The circle that sticks out of the transmitter with ND R433 written on it. Make sure that this is installed correctly. ✔ ✔

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. ✔ ✔

Install the 9-volt 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 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! ✔ ✔