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nt latchPin= 11; clockPin 9; nt - nt dataPin = 12:

nt latchPin= 11; clockPin 9; nt - nt dataPin = 12:

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Look at the code below and write an algorithm by explaining the code. Also write comments for the code for each line. Thanks !
Photocell § 0; int lightPin int latchPin = 11; int clockPin = 9; int dataPin= 12; int leds = 0; void setup() //start of dsetup { pinMode(latchPin, OUTPUT); pinMode(dataPin, OUTPUT); pinMode(clockPin, OUTPUT); }// end of setup void updateShiftRegister()// start of updateshiftregister function { digitalWrite(latchPin, LOW); shiftOut (dataPin, clockPin, LSBFIRST, leds); digitalWrite(latchPin, HIGH); }// end of updateShiftRegister void loop() // main loop { int reading = analogRead(lightPin); int numLEDSLit = reading / 57; //1023 / 9 / 2 if (numLEDSLit > 8) numLEDSLit = 8; leds = 0; // no LEDs lit to start for (int i = 0; i < numLEDSLit; i++) { } leds = leds + (1 <<< i); // sets the i'th bit updateShiftRegister(); }// end of loop
Transcribed Image Text:Photocell § 0; int lightPin int latchPin = 11; int clockPin = 9; int dataPin= 12; int leds = 0; void setup() //start of dsetup { pinMode(latchPin, OUTPUT); pinMode(dataPin, OUTPUT); pinMode(clockPin, OUTPUT); }// end of setup void updateShiftRegister()// start of updateshiftregister function { digitalWrite(latchPin, LOW); shiftOut (dataPin, clockPin, LSBFIRST, leds); digitalWrite(latchPin, HIGH); }// end of updateShiftRegister void loop() // main loop { int reading = analogRead(lightPin); int numLEDSLit = reading / 57; //1023 / 9 / 2 if (numLEDSLit > 8) numLEDSLit = 8; leds = 0; // no LEDs lit to start for (int i = 0; i < numLEDSLit; i++) { } leds = leds + (1 <<< i); // sets the i'th bit updateShiftRegister(); }// end of loop
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