Spectra Sonde Assembly What is the Spectra Sonde

Spectra. Sonde Assembly

What is the Spectra. Sonde? ✔ Reads temperature, pressure, and humidity data from the atmosphere. ✔ The Spectra. Sonde doesn’t fly like some of its other Ana. Sonde 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? Spectra. Sonde Kit Hardware Circuit Board Antenna Components (parts) Hand-Held Radio, Cable Computer Ana. Sonde Software Sonde. Works CW Get

Necessary Tools for Assembly Parts list and instructions Soldering Iron Wire cutters Tip cleaner/Wet sponge Clamp (optional) Safety Goggles!

Spectra. Sonde Kit Breakdown Circuit board S 1, S 2: switch U 1: 78 LO 5 voltage regulator SP 1: buzzer B 1: 9 -volt battery snap 8 -pin socket for U 2: microcontroller D 1: light emitting diode (LED) R 1: 620 ohm resistor (Blue, Red, Brown, Gold) R 2: 300 ohm resistor (Orange, Black, Brown, Gold) C 1, C 2: 0. 1 μF capacitor T: LM 19 temperature sensor P: ASDX 015 A 24 R pressure sensor (this is loose inside the box) RH: HIH-4000 humidity sensor

A Quick Lesson on How to 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 D 1, U 1, the speaker, temperature sensor, and humidity sensor remain a little above the board. (See pictures as you go along. ) Other components such as U 2, R 1 and R 2, S 1 and S 2, 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 Spectra. Sonde! 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 U 2 ✔ U 2 is direction sensitive! Line up notch of U 2 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 R 1 and R 2 ✔ Bend the leads of R 1 and R 2 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 R 1 and R 2 Installation

Install U 1 ✔ U 1 is direction sensitive! Be certain that the flat edge matches up with the flat edge drawn in white on the circuit board. ✔ Also: U 1 looks just like the temperature sensor - Make sure this is 78 LO 5 (read the label). Do not mix them up!

Install C 1 and C 2

Install S 1 and S 2

Install D 1 ✔ This diagram of D 1 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 D 1 continued ✔ Like with the socket, you can use alligator clips to hold D 1 and the board in place to make soldering easier.

After D 1 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 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 SP 1

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 U 2, the Microcontroller

Your Spectra. Sonde 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!