Introduction
Use this guide and video to create the "Pushbuttons Wired For Two Polarities" circuit. This explains a final improvement on the basic control box.
Parts
Video Overview
Featured Document
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Locate the project template labeled "Pushbuttons Wired For Two Polarities". It is located on the lower half of the right hand side of the Flat Fish project poster.
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Measure, cut, peel, and stick Maker Tape paths shown in the first image. The Negative (-) Black Circle Path will bring electricity into the switches. The Positive (+) Red Circle Paths will allow the current to return to the voltage source.
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Remove battery pack from the Double Pole Double Throw Switch Circuit. Using the third photo as a reference connect each of the battery pack wires to the appropriate paths on this new circuit template with small pieces of Maker Tape. They may still be reuse-able from the previous circuit but it's fine to cut and use new ones.
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Measure, cut, peel, and stick the Maker Tape segments of the lower part of the criss-cross as shown. Take care to maintain the pictured gap.
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Measure, cut, peel, and stick the upper part of the criss-cross. This involves a jumped wire just like you saw in the Green and White LED/ROV Outcome paths. Use extra length to enable this path to cross over and above the lower part without touching it.
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Peel and stick the remaining fuzzy half of your remaining hook and loop dots onto the circle labeled "motor".
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Now remove the motor from the previous circuit and mount the motor and fan to the new fuzzy dot.
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Connect the black motor wire to the end of the upper part of the criss-cross nearest to the "Motor Wire B" label. Use a small piece of Maker Tape that you measure, cut, peel, and stick as shown.
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Connect the red motor wire to the end of the lower part of the criss-cross nearest to the "Motor Wire A" label. Use a small piece of Maker Tape that you measure, cut, peel, and stick as shown.
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Cut and remove the 2 switch templates labeled "Double Pole Pushbutton" from the switch template bank located in the upper right hand corner of the Flat Fish project poster.
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Fold on the 4 dotted lines as shown.
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Measure, cut, peel, and stick Maker Tape paths atop each of the two pushbutton templates as shown.
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Position each of the prepared pushbuttons over each of the gaps as shown with the Maker Tape side facing down toward the rest of the existing pathways.
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Measure and cut 4 small pieces of Maker Tape.
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Peel and stick the Maker Tape pieces atop the switches to secure them in place as shown. The switches should have slight upward bend to them so that the conductive surface underneath is not normally in contact with the path ends/gap below.
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Push the right button down into contact with the contact points below; bridging the gap and completing this part of the circuit. Observe the direction of rotation at the motor.
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Push the left button down into contact with the contact points below; bridging the gap and completing this part of the circuit. Observe the direction of rotation at the motor.
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Use the student sheet attached at the bottom of this guide to help assess comprehension. There is an educator copy as well.
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Completing and testing this circuit/switch arrangement shows an improvement typically used to control blue thruster path on the first circuit. Now the outcome can be a motor instead of an LED and it can be made to go both forward AND backward instead of just on and off "one way". When that motor is oriented as shown on the graphic an ROV can go up OR down. Use attached worksheets to assess comprehension!
Completing and testing this circuit/switch arrangement shows an improvement typically used to control blue thruster path on the first circuit. Now the outcome can be a motor instead of an LED and it can be made to go both forward AND backward instead of just on and off "one way". When that motor is oriented as shown on the graphic an ROV can go up OR down. Use attached worksheets to assess comprehension!
Attached Documents
