Creating a Light-Tracking Servo

Basic Stamp Microprocessor
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Intended Grade Level(s):
9-12
Energy Content:
Circuitry,
Electrical Energy,
Electronics,
Light (Visible)
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.

Unit:
Robotic Sunflower
Lesson Number:
3
Pedagogy & Practice:
21st Century Skills Development,
Engineering Design,
Group Work/Collaboration,
Project-Based Learning
NGSS Science and Engineering Practices:
3: Planning and Carrying Out Investigations,
5: Using Mathematics and Computational Thinking
Relevant NGSS PE:
HS-ETS1-1,
HS-ETS1-2,
HS-ETS1-3,
HS-PS3-1,
HS-PS3-3
Other Subjects Covered:
Computer Science
Estimated Activity Length:
1 hour 40 min
Relevant Common Core Standard(s):
9-10.RST.3,
9-10.RST.7,
11-12.RST.9
Files Associated with this Activity:
PDF icon Robotic-sunflower-lesson3-plan.pdf
PDF icon robotic-sunflower-lesson3-handout1.pdf
Description:

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.

Science Kit Material(s) Used:
LEDs
Multimeter
Vernier Resistor Board
Other Material(s) Used:
• “Robotic Sunflower Lesson 3: Student Guide” • Photoresistor • 220 Ohm resistor • 440 Ohm resistor • 2k Ohm resistor • 10K Ohm resistor • 0.01 uF Capacitor • 5k Ohm potentiometer • Basic Stamp Homework Board • Jumper wires