Integrating Solar Power (Lesson 5)

Average Rating:
0
Author:
Pat Blount
Intended Grade Level(s):
9th
10th
11th
12th
Subject Area(s) Covered:
electricity
electronics
computer science
applied physics
Estimated Activity Length:
1 hour 40 min
Learning Goal(s):

Students will create voltage regulator and construct a solar battery charger.

Common Core Standard(s) Met:
9-10.RST.3
9-10.RST.7
11-12.RST.9

At this point students should have a working robotic sunflower that will track the sun with 2 degrees of freedom. This next lesson powers the whole system with a photovoltaic module. A Zener diode is used to charge a 6V motorcycle battery which then supplies a voltage regulator which in turn supplies the 5V needed by the microprocessor. View full description >>

Dual Axis Light Tracking (Lesson 4)

Average Rating:
0
Author:
Pat Blount
Intended Grade Level(s):
9th
10th
11th
12th
Subject Area(s) Covered:
electricity
electronics
computer science
applied physics
Estimated Activity Length:
1 hour 40 min
Learning Goal(s):

Students will create a solar tracker with two degrees of freedom.

Common Core Standard(s) Met:
9-10.RST.3
9-10.RST.7
11-12.RST.9

Students will take the previous lesson and apply them in creating a light tracker with two degrees of freedom. The axis of rotation will be about the horizontal and vertical. Teams will have everything they need to make this build work. They have already created a tracker with one degree of freedom, so adding a second is a matter of replication... View full description >>

Creating a Light-tracking Servo (Lesson 3)

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0
Author:
Pat Blount
Intended Grade Level(s):
9th
10th
11th
12th
Subject Area(s) Covered:
electricity
electronics
computer science
applied physics
Estimated Activity Length:
1 hour 40 min
Learning Goal(s):

Students will synthesize the previous lesson for light metering and servo control to design a servo controlled by two photoresistors that will track a light source.

Common Core Standard(s) Met:
9-10.RST.3
9-10.RST.7
11-12.RST.9

Students will learn how to program the Basic Stamp to use information from two photoresistors to point a servo at a light source. This will be the first degree of freedom for the flower head. View full description >>

Controlling a Servo (Lesson 2)

Average Rating:
0
Author:
Pat Blount
Intended Grade Level(s):
9th
10th
11th
12th
Subject Area(s) Covered:
electricity
electronics
computer science
applied physics
Estimated Activity Length:
1 hour 40 min
Learning Goal(s):

Students will be able to apply the pulse width modulation to a servo from a Basic Stamp. Students will synthesize two circuit designs using one to control the other through the Basic Stamp.

Common Core Standard(s) Met:
11-12.RST.3
11-12.RST.7
11-12.RST.9

In this lesson students will learn how to control a servo using the Basic Stamp. Then students will combine the photoresistor from the previous lesson with the servo to create a light controlled servo. View full description >>

Measuring Voltage Using a Microcontroller (Lesson 1)

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0
Author:
Pat Blount
Intended Grade Level(s):
9th
10th
11th
12th
Estimated Activity Length:
2 hours 30 min
Learning Goal(s):

Students will apply Ohm’s Law. Students will use a multimeter to measure current, voltage, and resistance. Students will use a breadboard to set up a series circuit. Students will read circuit diagrams. Students will calculate times for an RC circuit to change state. Students will prove that resistors in series have an equivalent resistance equal to their individual sums. Students will program the Basic Stamp to measure voltage levels in a voltage divider and RC circuit.

Common Core Standard(s) Met:
11-12.RST.3
11-12.RST.7
11-12.RST.9

In this lesson students will be introduced to series circuits, resistors, a photoresistor and a microcontroller. There’s a lot here, but it boils down to making a voltage divider circuit and measuring the voltage at different points. A second circuit includes an RC component. Teachers can edit this down to just a photoresistor if time and/or... View full description >>