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WorksheetsWeek10: Analog to Digital Conversion and LCD
Total questions: 10
Worksheet time: 5mins
Refer to a figure, which digital pin on the Arduino directly corresponds to the analog input pin A0?
Digital Pin 14
Digital Pin 54
Digital Pin 0
Digital Pin 16
Refer to a figure. How many analog input pins (A0-An) on the Arduino can also function as digital I/O pins?
8
12
14
16
Refer to a figure. Digital Pin 67 on the MCU is associated with which analog input pin?
A19
A5
A13
A1
Refer to the LCD used in the class EE705. What is the standard number of characters per line and line numbers?
8 characters x 1 line
16 characters x 2 lines
20 characters x 4 lines
12 characters x 1 line
What is the primary purpose of an LCD ?
To provide wireless communication capabilities. Which it very important for communication.
To offer a convenient way to interface an LCD display and often some input buttons with an Arduino.
To increase the processing speed and save power on the Arduino.
To act as a power supply and increase the memory for the Arduino.
What type of technology does the distance sensor utilize to measure distance?
Capacitive sensing
Ultrasonic waves
Laser triangulation
Infrared (IR) reflection
What is the typical sensing range of the distance sensor?
10 cm to 80 cm
4 cm to 30 cm
2 cm to 10 cm
20 cm to 150 cm
What type of output signal does the Sharp GP2Y0A21 provide that is proportional to the detected distance?
Digital (TTL) signal
PWM signal
Analog voltage
Serial data
Refer to the picture. As the distance to an object detected by the increases, what happens to its analog output voltage?
The voltage increases linearly.
The voltage decreases non-linearly
The voltage remains constant
The voltage becomes zero
Refer to the figure. What is the purpose of the line const int LED = 50; in this Arduino sketch?
It defines a function named LED that takes an integer argument of 50
It includes a library named LED and uses the constant value 50 within it.
It sets the analog output value of pin 50 to its maximum.
It declares a variable named LED and assigns it the integer value 50
