Use the reference to find the answers to the following questions.
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Read the page on conditionals and write the code for each statement: if pin1 is high set pin2 to high if pin3 is not equal to pin4 set both pins 5 and 6 to high if a is less than or equal to b set pin 7 to low
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floats are numbers with decimal points. How do they print? Write the code to print x in octal How do you print a tab? What's the difference between print and println? |
Read and display digital values // Sets pin 13 to the same value as pin 7, declared as an input. int ledPin = 13; // LED connected to digital pin 13
int inPin = 7; // pushbutton connected to digital pin 7
int val = 0; // variable to store the read value
void setup() {
pinMode(ledPin, OUTPUT); // sets the digital pin 13 as output
pinMode(inPin, INPUT); // sets the digital pin 7 as input
}
void loop() {
val = digitalRead(inPin); // read the input pin
digitalWrite(ledPin, val); // sets the LED to the button's value
}
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Read and display an analog value // Reads the voltage on analogPin and displays it on the Serial screen int analogPin = 3; // analog device connected to analog pin 3
int val = 0; // variable to store the value read
void setup() {
Serial.begin(9600); // setup serial monitor for output
}
void loop() {
val = analogRead(analogPin); // read the input pin
Serial.println(val); // display the value
}
What is the warning about analogRead?
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Rewrite the program above to display a C on a 7 segment display when the switch is on and a 1 on the 7 segment display when the switch is off.
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Rewrite the program above to take in 2 analog inputs on pins 2 and 3. |