SUMMER STEM-HEALTH CAMP
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          • Fading multicolor led
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      • Day 1: 2D design
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      • Day 1: Basics and Lights >
        • Multicolor LED
        • Button Control
      • Day 2: Ultrasound >
        • Ultrasound Health Lesson
        • Supplement Melody
        • Supplement: Servo >
          • Potentiometer and Motors
          • 2 servo control
      • Day 3: Measuring Pulse >
        • How the body absorbs light
        • OLED Screen Basics >
          • Scrolling Screen Graph
      • Day 4 Making an ECG/EKG! >
        • ECG Health Lesson
        • Pictures to OLED
        • BPM on OLED
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      • Day 1: Basics, Lights, and Temperature Sensor >
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      • Day 2: Measuring Pulse >
        • How the body absorbs light
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        • PIR Motion Sensor
      • Day 3 Supplement: OLED Screen Basics >
        • Display Screen Temperature
        • Scrolling Screen Graph
      • Day 4: Finishing up/Show
    • 2021 STEM Camp (MS) >
      • PreAcademy prep
      • Day 1: Basics, Lights, and Temperature Sensor >
        • Day 1 Supplement: Identifying Resistors
        • Day 1 Supplement: Measure Temperature
        • Day 1 Supplement: IR Light Proximity Sensor
      • Day 2: Ultrasound >
        • Day 2 Supplement: IR Temp Sensor
        • Day 2 Supplement: Controlling A Servo
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Supplemental Day 2 Lesson​


Controlling 2 servos with one potentiometer

Someday you may want to wire up many of these servos to control a lot of things. We should learn how to change a code to add more of the same thing. Below is code similar to the end of the 3rd lesson from day 2 on controlling one servo with one potentiometer. ​
Picture
Now, below is the same code but just adding the lines needed to control a 2nd servo. Note what changes. Is there a trend for the changes? Try it out and see if you can get it to work.  
Picture


​

​

Remember that below is how to wire up two servos. The potentiometer wiring looks the same as before. 
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  • Home
  • 2025 RCC Camp
    • Day 1: Basic Coding >
      • Button Control
      • Multicolor LED
      • Fading multicolor led
      • Melody (sound)
    • Day 2: Servos and Potentiometers >
      • DC Motor
      • Ultrasound
      • Potentiometer and Motors
      • 2 servo control >
        • Analog Stick Control
      • PIR Motion Sensor
      • IR Light Proximity Sensor
    • Day 3 Making an ECG/EKG! >
      • ECG/EKG health lesson
      • OLED Screen Basics
      • Pictures to OLED
      • BPM on OLED
    • Day 4: Measuring Pulse >
      • Scrolling Screen Graph
      • How the body absorbs light
      • Screen Pictures
      • IR Temp Sensor And Screen
    • Day 5: Finishing up/Show >
      • IR Light Proximity Sensor
      • PIR Motion Sensor
      • CO2 Sensor
      • Ultrasound distance sensor
  • The Teachers
  • Our Partners
  • Archive
    • 2024 Health-STEM Coding Camp >
      • Home (2024)
      • The Teachers
      • Day 1: Basics and Lights
    • 2024 Coding/Robotics Camp >
      • Day 1: Basic Coding >
        • Saving your codes
        • Engineering design
      • Day 2 Servos >
        • 2 Servos, one potentiometer
        • Multicolor LED >
          • Fading multicolor led
    • Pictures from prior years
    • 2023 3D Design Camp >
      • Day 1: 2D design
      • Day 2: 3D design basics
      • Day 3: Constraints
    • 2023 Health-STEM Coding Camp >
      • PreAcademy prep
      • Day 1: Basics and Lights >
        • Multicolor LED
        • Button Control
      • Day 2: Ultrasound >
        • Ultrasound Health Lesson
        • Supplement Melody
        • Supplement: Servo >
          • Potentiometer and Motors
          • 2 servo control
      • Day 3: Measuring Pulse >
        • How the body absorbs light
        • OLED Screen Basics >
          • Scrolling Screen Graph
      • Day 4 Making an ECG/EKG! >
        • ECG Health Lesson
        • Pictures to OLED
        • BPM on OLED
      • Day 5: Finishing up/Show
    • 2021 STEM Camp (HS) >
      • The Teachers (2021)
      • PreAcademy prep
      • Day 1: Basics, Lights, and Temperature Sensor >
        • Day 1 Supplement: Measure Temperature
        • Day 1 Supplement: IR Temp Sensor
        • Day 1 Supplement: Identifying Resistors
        • Supplement: Controlling A Servo
      • Day 2: Measuring Pulse >
        • How the body absorbs light
        • IR Light Proximity Sensor
        • PIR Motion Sensor
      • Day 3 Supplement: OLED Screen Basics >
        • Display Screen Temperature
        • Scrolling Screen Graph
      • Day 4: Finishing up/Show
    • 2021 STEM Camp (MS) >
      • PreAcademy prep
      • Day 1: Basics, Lights, and Temperature Sensor >
        • Day 1 Supplement: Identifying Resistors
        • Day 1 Supplement: Measure Temperature
        • Day 1 Supplement: IR Light Proximity Sensor
      • Day 2: Ultrasound >
        • Day 2 Supplement: IR Temp Sensor
        • Day 2 Supplement: Controlling A Servo
      • Day 3: Measuring Pulse
    • 2020 STEM Camp
    • 2018 Lessons
    • 2017 Camp
  • Contact Us!