Charles Tritt / Mbed 2 deprecated ForLoopIteration

Move lighted bar back and forth on a bargraph LED display. Demonstrations for loops.

Dependencies:   mbed

main.cpp@0:9475544275a6, 2017-09-21 (annotated)

Committer:
CSTritt
Date:
Thu Sep 21 20:11:08 2017 +0000
Revision:
0:9475544275a6
My initial version.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
CSTritt 0:9475544275a6 1 /*
CSTritt 0:9475544275a6 2 Project: ForLoopIteration
CSTritt 0:9475544275a6 3 File: main.cpp
CSTritt 0:9475544275a6 4
CSTritt 0:9475544275a6 5 Demonstrates the use of a for() loop. Lights multiple LEDs in sequence, then
CSTritt 0:9475544275a6 6 in reverse.
CSTritt 0:9475544275a6 7
CSTritt 0:9475544275a6 8 The circuit:
CSTritt 0:9475544275a6 9
CSTritt 0:9475544275a6 10 Bargraph LEDs from pins 2 through 11 to ground via 330 Ohm resistors.
CSTritt 0:9475544275a6 11
CSTritt 0:9475544275a6 12 Created 2006
CSTritt 0:9475544275a6 13 by David A. Mellis
CSTritt 0:9475544275a6 14 Modified 30 Aug 2011
CSTritt 0:9475544275a6 15 by Tom Igoe
CSTritt 0:9475544275a6 16 Modified for Nucleo / mbed 12 Aug 2017
CSTritt 0:9475544275a6 17 by Sheila Ross
CSTritt 0:9475544275a6 18 Modified by C. S. Tritt 9/21/17 (v. 1.0)
CSTritt 0:9475544275a6 19
CSTritt 0:9475544275a6 20 This example code is in the public domain.
CSTritt 0:9475544275a6 21 */
CSTritt 0:9475544275a6 22
CSTritt 0:9475544275a6 23 #include "mbed.h"
CSTritt 0:9475544275a6 24
CSTritt 0:9475544275a6 25 float delay = 0.1; // Seconds, the higher the number, the slower the rate.
CSTritt 0:9475544275a6 26
CSTritt 0:9475544275a6 27 BusOut bar_graph(D2,D3,D4,D5,D6,D7,D8,D9,D10,D11);
CSTritt 0:9475544275a6 28
CSTritt 0:9475544275a6 29 int main() {
CSTritt 0:9475544275a6 30
CSTritt 0:9475544275a6 31 while(true) { // Keep the lights going back and forth forever.
CSTritt 0:9475544275a6 32
CSTritt 0:9475544275a6 33 // Lighted bar will shift from 0 to 9 places.
CSTritt 0:9475544275a6 34 for(int shift = 0; shift < 10; shift++) {
CSTritt 0:9475544275a6 35 bar_graph = (1<<shift); // A 1 shifted over "shift" places.
CSTritt 0:9475544275a6 36 wait(delay); // Pause
CSTritt 0:9475544275a6 37 }
CSTritt 0:9475544275a6 38
CSTritt 0:9475544275a6 39 // Now shift down from 9 to 0 places.
CSTritt 0:9475544275a6 40 for(int shift = 9; shift >= 0; shift--) {
CSTritt 0:9475544275a6 41 bar_graph = (1 << shift); // A 1 shifted over "shift" places.
CSTritt 0:9475544275a6 42 wait(delay); // Pause
CSTritt 0:9475544275a6 43 }
CSTritt 0:9475544275a6 44 }
CSTritt 0:9475544275a6 45 }