Arduino

What are the two axes in an analog joystick?

• X-axis and Y-axis
• R-axis and S-axis
• A-axis and B-axis
• Z-axis and W-axis

What happens when an analog joystick is released?

• It moves randomly

• It remains in its last position

• It centers itself

• It turns off

What is the typical voltage range for a joystick’s VRx and VRy outputs?

• 0 to 1023

• 0 to VCC

• -5V to 5V
• 1V to 3V

What type of output does a flame sensor provide?

• Digital only

• Both analog and digital

• Analog only

• None of the above

Which wavelength range does the flame sensor detect?

• 760 nm – 1100 nm

• 400 nm – 600 nm

• 600 nm – 760 nm

• 1100 nm – 1500 nm

What is the main function of an RGB module?

• To store color data for images.
• To enhance audio quality in devices.
• To control the brightness of a single color light.
• Emit different colors using PWM

Which principle does an RFID system use?

• Infrared transmission

• Ultrasonic waves

• Bluetooth signals

• Electromagnetic fields

What is the role of the MOSI pin in an RFID system?

• Power the RFID tag

• Send data from the RFID reader to the microcontroller

• Reset the RFID reader

• Store data

What is the primary function of a servo motor?

• Generate sound waves

• Rotate to a specific angle

• Detect magnetic fields

• Measure temperature

Which statement about thermistors is true?

• NTC thermistors increase resistance as temperature rises

• NTC thermistors decrease resistance as temperature rises

• Thermistors are not affected by temperature

• Thermistors can only be used in high-temperature environments