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Wiring the Control Box. Circuit Review. Wiring the Control Box. Simple Circuit. Resistor. Battery. Conductor(s). Circuit Review. Wiring the Control Box. Conductors. Resistor. Battery. Circuit Review. Wiring the Control Box. Series. Parallel. -Current has 1 path
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Circuit Review Wiring the Control Box Simple Circuit Resistor Battery Conductor(s)
Circuit Review Wiring the Control Box Conductors Resistor Battery
Circuit Review Wiring the Control Box Series Parallel -Current has 1 path -Voltage is divided up to each resistor -Current is the same through each resistor -Current breaks up along multiple paths -Voltage across each resistor is the same -Current is divided up to the resistors
What circuit do we want? Wiring the Control Box Series 3 V 3 V 3 V 3 V 12 V Parallel 12 V 12 V 12 V 12 V 12 V
Wiring the Control Box: Components Wiring the Control Box • Wires from tether: • 8 wires coming into control box • 2 wires for each switch (+/-) • Wires from battery • 2 wires coming into box • Connected in parallel to each switch • 4 switches • Box
The Control Box Wiring the Control Box
Wiring the Control Box Switches
Wiring the Control Box Switches
Wiring the Control Box Switches
Wiring the Control Box Wiring the Control Box Get out your colored pencils and control box diagrams!
5 5 5 5 4 4 4 4 6 6 6 6 3 3 3 3 1 1 1 1 2 2 2 2
5 5 5 5 4 4 4 4 6 6 6 6 3 3 3 3 1 1 1 1 2 2 2 2
5 5 5 5 4 4 4 4 6 6 6 6 3 3 3 3 1 1 1 1 2 2 2 2
5 5 5 5 4 4 4 4 6 6 6 6 3 3 3 3 1 1 1 1 2 2 2 2
5 5 5 5 4 4 4 4 6 6 6 6 3 3 3 3 1 1 1 1 2 2 2 2
Wiring the Control Box Wiring the Control Box 4 5 6 3 7 2 1 8
Wiring the Control Box Wiring the Control Box 5 4 6 3 7 2 8 1 Parallel circuit
Wiring the Control Box Wiring the Control Box Parallel circuit
Wiring the Control Box Wiring the Control Box
Wiring the Control Box Wiring the Control Box
Stripping Wires Wiring the Control Box: Another pre-activity Trying “wiring” your control box using string
Stripping Wires Wiring Reminders Use strippers for stripping plastic and exposing the wire as indicated in the essentials presentation.
Wiring Reminders Crimping • Once the wire is firmly crimped, secure with electrical tape. • 8 spades are needed to connect your red wires (same for the black set) • To crimp the wires line them up next to each other and gently twist into metal ring until you can see both wires at other end. • Use the crimping part of your red wire cutter/crimper. • Make sure that you squeeze the metal ring and not just the plastic.
Wiring the Control Box Start with the Red Wire 4 2 5 3 1 6 7 8 • Measure distance between contacts. • Cut 8 red wires and 8 black wires. • Wire 1 has to be long enough to go through control box to the battery
Wiring the Control Box Then the black… • Once you have crimped together both your black and red wires you can attach the spades to the contacts.
Wiring the Control Box Then the motors… • Attaching the propellers • Use 8 of the blue spades • Use the same stripping and crimping technique • Note which color wires go to each switch/propeller
What it all looks like! Wiring the Control Box Wires from a motor Wires from battery source
What it all looks like! Wiring the Control Box
What it all looks like! Wiring the Control Box
Wiring the Control Box Wiring the Control Box • Control Box Helpful Tips: • Label the switches (inside and outside the box) as up/down, right, and left • Write down which color wires connect to which motor on the ROV • Connect all the wires together to the spades first, then plug the spades into the switches • Draw a diagram of which color wires connect where on the switches. If anything falls out, then it can easily be reconnected. • If a motor is turning the opposite direction desired, swap the 2 colored wires to opposite sides.
Wiring the Control Box Wiring the Control Box • Control Box with your Club: • 2nd and 3rd year teachers: • What activities have your tried with your students? • Other tips?