Activity9: Write a program to turn on individual outputs

Name ______Date______

Green Light

Section 1: Directions:All steps below must receive an acceptablerating to pass this lesson. / Student Assessment / Teachers
Assessment
NXT Relay Circuit for the green light / Acceptable / Not
acceptable
A. / Thetwisted end of the black wire is connected to the negative black power post on the relay board and the tinned end is connected to the negative (-) 12VDC power supply terminal.The twisted end of the red wire is connected to the positive red power post on the relay board andthe tinned end is connected to the positive (+) 12VDC power supply terminal / / /
B.
C.
D. / The green wire from the traffic light is connected to the red relay post and the white wire with a green stripe is connected from the traffic light to the dark relay post for relay number 1
Line 1 of the relay board is plugged into Port A on the NXT Controller
The A/B USB cables B end is plugged into the NXT Controller and the A end is plugged into the computer’s USB port. / / /

Teachers Signature: ______

Section 2 Green Light:Below the arrows show the flow of electricity in the three sub- circuits. Identify the three sub-circuits by placing a circle around each sub-circuit and writing the voltage for each sub-circuit.

Teachers Signature: ______

Name ______Date______

3.
Section 3 Yellow Light: Directions:All steps below must
Receivean acceptableratingto pass this lesson / Student Assessment / Teachers
Assessment
NXT Relay Circuit / Acceptable / Not
acceptable
A.The orange wire from the traffic light is connected to the
yellowrelay post and the white wire with a orange stripe is
connectedfrom the traffic light to the dark relay post for relay
number 2
B. Line 2 of the relay board is plugged into Port B on the NXT
Controller
C. The A/B USB cables B end is plugged into the NXT
Controller and the A end is plugged into the computer’s USB
port.
4. / / /

Teachers Signature: ______

Name ______Date______

Section 4 Yellow Light: Directions:Using arrows, finish the drawing showing the

paths of electricity on the circuit below that controls the yellow light. Also write in the various

voltages associated with each sub-circuit.

Teachers Signature: ______

Name ______Date______

Section 5 Red Light: Directions:All steps below must receive an acceptable ratingto pass this lesson / Student Assessment / Teachers
Assessment
A.
B.
C. / The brown wire from the traffic light is connected to the red relay post and the white wire with a brown stripe is connected from the traffic light to the dark relay post for relay number 3
Line 3 of the relay board is plugged into Port C on the NXT Controller
The A/B USB cable B end is plugged into the NXT Controller and the A end is plugged into the computer’s USB port. / / Acceptable / Not
acceptable

Teachers Signature: ______

Name ______Date______

Section 6 Red Light: Directions:Using arrows finish the drawing showing the paths of

electricity on the circuit below that controls the red light. Also write in the various voltages

associatedwith each sub-circuit.

Teachers Signature: ______