Complete the Circuit Electrical Current – flow of electrons Sunday July 13, 2014Mission: JiggyBot1 YOU CONDUCT ELECTRICITY!

Complete the CircuitElectrical Current – flow of electrons

Sunday July 13, 2014 Mission: JiggyBot 1

YOU CONDUCT ELECTRICITY!

The JiggyBot MissionMission: To build a JiggyBot that will win a race

JiggyBots are electrical devices that light up and vibrate.

Mission Targets:1. I can identify and describe the function of the components used to light up

and move the JiggyBot.

2. I can read and interpret an electronic circuit diagram (schematic).

3. I can describe the flow of electrical current through the JiggyBot components to explain how it works.

4. I can solder the components of the JiggyBot onto a printed circuit board (PCB) successfully to light up the light-emitting diode (LED) and vibrate.

Sunday July 13, 2014 2Mission: JiggyBot

Mission: JiggyBotJiggyBot Baggie Components Directions: Find this page in your lab manual

1. Open the JiggyBot baggie and get out the electronic components.

2. Match the components with the correct component name on the JiggyBot Component Inventory Sheet.

3. Use the internet or reference sheet to determine the function of each component in the kit and record in the space provided.


Mission: JiggyBotPrinted Circuit Board

• Mechanically supports and Electrically connects electronic components using electrically conductive tracts etched from copper sheets and laminated on a non conductive substrate.

• Note: Electrically conductive means that electricity can flow through the tracts and the into the components.


Mission: JiggyBotBattery

Device that converts chemical energy into electrical energy.

SwitchDevice used to open and close an

electrical circuit.

Resistor Limits (resists) the flow of

electrical current


LED

Light Emitting DiodeDiodes are

polarized devices. Electricity can only

flow in one direction through

them.

Click here to learn more


http://www.societyofrobots.com/electronics_led_tutorial.shtml

http://www.societyofrobots.com/electronics_led_tutorial.shtml

The Motor

Unbalanced load = vibration

Click to find out more


http://www.precisionmicrodrives.com/application-notes-technical-guides/application-bulletins/ab-004-understanding-erm-characteristics-for-vibration-applications

http://www.precisionmicrodrives.com/application-notes-technical-guides/application-bulletins/ab-004-understanding-erm-characteristics-for-vibration-applications

Breadboarding


Challenge

• Use the breadboard in your JiggyBot baggie to practice creating a circuit that will light the LED.

• Draw the connections that worked on your worksheet by using the schematic symbols for the battery, LED and resistor.

• When you get it working – take a picture of it!!


ChallengeBuild a Resistor-LED circuit Schematic


PREDICT: Why do you think it is necessary to use a resistor with the LED?

JiggyBot Altium


JiggyBot Schematic


Next Challenge

* Breadboard your JiggyBot components*


Now it’s time to learn to solder!


Soldering

Establishes physical and electrical connections– Used by

• Electricians• Electronics technicians• Electrical engineers• Jewelry makers• Stained glass

manufacturers


Solder

is a fusible metal alloy used to join together metal work pieces and having a melting point below that of the work piece.

Composed primarily of Lead and Tin.(so we need to wash our hands when we’re finished)

Take a piece and bend or stretch it – it’s ductile!


http://en.wikipedia.org/wiki/Fusible_alloy

http://en.wikipedia.org/wiki/Alloy

Soldering 101• Soldering is dangerous if not respected.

• Be mindful of where you are and where the soldering iron is around you.

• If you get burned…LET US KNOW IMMEDIATELY!

• Stay together, don’t work ahead for now (For your safety)


PCB – Printed Circuit Board


PCB – Printed Circuit Board

Circuit Board

Top View

Soldering Pads

Component

Side View


Get your station Ready• Moisten your sponges with the water bottles

at your tables. (You don’t need standing water)

• Turn your soldering irons to 750° F.

Would like to have a picture of our soldering iron on 750


Preparing your Iron• Tin the tip of the soldering

iron by melting an inch or so of solder on the tip.

• The iron will now look shiny on the tip.

• Then wipe any excess solder on the golden sponge.

• Now place the iron back into the holder.

Tinning your soldering iron in this manner will aid in future

soldering. Sunday July 13, 2014 21Mission: JiggyBot

Close up


Strategy

SolderingIron


Strategy

Move soldering iron until tip istouching wire & solder pad


Strategy

Move solder to touch edge of tip

Solder


Strategy

Hold until solder melts on tip by wire

Solder


Strategy

Move soldering iron tip up. Thiswill drag solder up with it.

Solder


Strategy

Look for shinny fillets


Soldering Tips1. Make sure the tip is hot!

2. Clean & tin the tip regularlyKeep tip clean by using wet sponge and scour pad

3. Heat all parts until they are hot enough to melt solder

4. Hold the iron on the joint until the solder flashes around the pad

5. Do not use too much solder (Less is more here)Sunday July 13, 2014 29Mission: JiggyBot

Tips• Use caution when

clipping leads to avoid flinging metal across the room.

• All soldering must achieve a good solder filet on the pad as shown for circuit reliability.

• Bend resistors and diodes using needlenose pliers as shown.


Solder Joints


The tear drop of Joy


Congratulations you just soldered your first

component at

Time to tweet, instagram, or facebook!


JiggyBot Altium


JiggyBot Schematic


JiggyBot - Step 1

Insert the LED into D1, solder then clip leads.

Be certain to insert the short (negative) lead into the square.


Steps 2 - 4

Insert, solder and clip leads • R1 • Sw • M1


Step 5

If your JiggyBot vibrates and the LED is on, then you have successfully built (soldered) your first electronic device!

Facebook, Tweet, Instagram, Vine, Whatever YOU do – tell the world

how awesome you are


Prepare for RaceYou may strategically solder legs (stiff wires) onto your JiggyBot.

All the JiggyBots will be placed in a Hula Hoop and turned on. The Hula Hoop will be removed and Your goal is to make it to the outer most ring (outlined in tape)first!


Jazz it Up

Pimp out your JiggyBot – make her spectacularly fabulous!

– Only one criteria:

She MUST have your picture on her.Take lots of pictures of her and post



Resistor Battery simulation• https://phet.colorado.edu/en/simulation/batt

ery-resistor-circuit


https://phet.colorado.edu/en/simulation/battery-resistor-circuit




Documents

Complete the Circuit Electrical Current – flow of electrons Sunday July 13, 2014Mission: JiggyBot1 YOU CONDUCT ELECTRICITY!