The Potentiometer Variable Resistor project demonstrates how to use an Arduino Nano to read analog input from a potentiometer (variable resistor) and map the analog values to a desired range. Potentiometers are widely used in electronics to provide variable resistance and are commonly found in volume controls, dimmer switches, and other user interface elements.
- Arduino Nano
- Potentiometer
- Jumper Wires
- Connect Potentiometer to Arduino Nano:
- Connect one end of the potentiometer to 5V on the Arduino Nano.
- Connect the other end of the potentiometer to GND on the Arduino Nano.
- Connect the wiper (middle pin) of the potentiometer to analog pin A0 on the Arduino Nano.
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Circuit Setup:
- Wire the potentiometer to the Arduino Nano as described in the circuit setup section.
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Code Upload:
- Open the Arduino IDE and paste the provided code.
- Upload the code to the Arduino Nano.
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Testing:
- Once the code is uploaded, open the serial monitor.
- The serial monitor will display the mapped potentiometer value, which corresponds to the position of the potentiometer knob.
- Analog Input Control: Use potentiometers to control parameters such as volume, brightness, and speed in various electronic projects.
- User Interface: Implement potentiometers as user interface elements for adjusting settings and parameters in devices.
- Analog Sensor Interface: Convert analog sensor inputs to digital values suitable for processing by microcontrollers.
- Adjust the delay in the code to control the rate at which the potentiometer value is read and displayed.
- Experiment with different mapping ranges to suit the specific requirements of your project.
- Potentiometers can be combined with other components like LEDs, motors, and displays to create interactive and responsive systems.
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