Mike Fiore / Mbed 2 deprecated 4-Digit-Display-Scroller

scroller for 4 digit display, rides on top of DigitDisplay and scrolls messages of arbitrary length

Dependencies:   DigitDisplay mbed

DisplayManager/DisplayManager.cpp@0:f8d65945b096, 2014-09-07 (annotated)

Committer:
mfiore
Date:
Sun Sep 07 05:30:25 2014 +0000
Revision:
0:f8d65945b096
initial commit - looks good and supports 0-9, a-b, hyphen, and underscore

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mfiore 0:f8d65945b096 1 #include "mbed.h"
mfiore 0:f8d65945b096 2 #include "DisplayManager.h"
mfiore 0:f8d65945b096 3
mfiore 0:f8d65945b096 4 DisplayManager::DisplayManager(PinName clk, PinName dio) : display(NULL) {
mfiore 0:f8d65945b096 5 display = new DigitDisplay(clk, dio);
mfiore 0:f8d65945b096 6 }
mfiore 0:f8d65945b096 7
mfiore 0:f8d65945b096 8 DisplayManager::~DisplayManager() {
mfiore 0:f8d65945b096 9 if (display) delete display;
mfiore 0:f8d65945b096 10 }
mfiore 0:f8d65945b096 11
mfiore 0:f8d65945b096 12 uint8_t DisplayManager::convert(uint8_t value) {
mfiore 0:f8d65945b096 13 switch (value) {
mfiore 0:f8d65945b096 14 case '0':
mfiore 0:f8d65945b096 15 return 0x3f;
mfiore 0:f8d65945b096 16 case '1':
mfiore 0:f8d65945b096 17 return 0x06;
mfiore 0:f8d65945b096 18 case '2':
mfiore 0:f8d65945b096 19 return 0x5b;
mfiore 0:f8d65945b096 20 case '3':
mfiore 0:f8d65945b096 21 return 0x4f;
mfiore 0:f8d65945b096 22 case '4':
mfiore 0:f8d65945b096 23 return 0x66;
mfiore 0:f8d65945b096 24 case '5':
mfiore 0:f8d65945b096 25 return 0x6d;
mfiore 0:f8d65945b096 26 case '6':
mfiore 0:f8d65945b096 27 return 0x7d;
mfiore 0:f8d65945b096 28 case '7':
mfiore 0:f8d65945b096 29 return 0x07;
mfiore 0:f8d65945b096 30 case '8':
mfiore 0:f8d65945b096 31 return 0x7f;
mfiore 0:f8d65945b096 32 case '9':
mfiore 0:f8d65945b096 33 return 0x6f;
mfiore 0:f8d65945b096 34 case 'a':
mfiore 0:f8d65945b096 35 case 'A':
mfiore 0:f8d65945b096 36 return 0x77;
mfiore 0:f8d65945b096 37 case 'b':
mfiore 0:f8d65945b096 38 case 'B':
mfiore 0:f8d65945b096 39 return 0x7c;
mfiore 0:f8d65945b096 40 case 'c':
mfiore 0:f8d65945b096 41 case 'C':
mfiore 0:f8d65945b096 42 return 0x39;
mfiore 0:f8d65945b096 43 case 'd':
mfiore 0:f8d65945b096 44 case 'D':
mfiore 0:f8d65945b096 45 return 0x5e;
mfiore 0:f8d65945b096 46 case 'e':
mfiore 0:f8d65945b096 47 case 'E':
mfiore 0:f8d65945b096 48 return 0x79;
mfiore 0:f8d65945b096 49 case 'f':
mfiore 0:f8d65945b096 50 case 'F':
mfiore 0:f8d65945b096 51 return 0x71;
mfiore 0:f8d65945b096 52 case 'g':
mfiore 0:f8d65945b096 53 case 'G':
mfiore 0:f8d65945b096 54 return 0x3d;
mfiore 0:f8d65945b096 55 case 'h':
mfiore 0:f8d65945b096 56 case 'H':
mfiore 0:f8d65945b096 57 return 0x76;
mfiore 0:f8d65945b096 58 case 'i':
mfiore 0:f8d65945b096 59 case 'I':
mfiore 0:f8d65945b096 60 return 0x30;
mfiore 0:f8d65945b096 61 case 'j':
mfiore 0:f8d65945b096 62 case 'J':
mfiore 0:f8d65945b096 63 return 0x1e;
mfiore 0:f8d65945b096 64 case 'k':
mfiore 0:f8d65945b096 65 case 'K':
mfiore 0:f8d65945b096 66 return 0x76;
mfiore 0:f8d65945b096 67 case 'l':
mfiore 0:f8d65945b096 68 case 'L':
mfiore 0:f8d65945b096 69 return 0x38;
mfiore 0:f8d65945b096 70 case 'm':
mfiore 0:f8d65945b096 71 case 'M':
mfiore 0:f8d65945b096 72 return 0x15;
mfiore 0:f8d65945b096 73 case 'n':
mfiore 0:f8d65945b096 74 case 'N':
mfiore 0:f8d65945b096 75 return 0x54;
mfiore 0:f8d65945b096 76 case 'o':
mfiore 0:f8d65945b096 77 case 'O':
mfiore 0:f8d65945b096 78 return 0x3f;
mfiore 0:f8d65945b096 79 case 'p':
mfiore 0:f8d65945b096 80 case 'P':
mfiore 0:f8d65945b096 81 return 0x73;
mfiore 0:f8d65945b096 82 case 'q':
mfiore 0:f8d65945b096 83 case 'Q':
mfiore 0:f8d65945b096 84 return 0x67;
mfiore 0:f8d65945b096 85 case 'r':
mfiore 0:f8d65945b096 86 case 'R':
mfiore 0:f8d65945b096 87 return 0x50;
mfiore 0:f8d65945b096 88 case 's':
mfiore 0:f8d65945b096 89 case 'S':
mfiore 0:f8d65945b096 90 return 0x6d;
mfiore 0:f8d65945b096 91 case 't':
mfiore 0:f8d65945b096 92 case 'T':
mfiore 0:f8d65945b096 93 return 0x78;
mfiore 0:f8d65945b096 94 case 'u':
mfiore 0:f8d65945b096 95 case 'U':
mfiore 0:f8d65945b096 96 return 0x3e;
mfiore 0:f8d65945b096 97 case 'v':
mfiore 0:f8d65945b096 98 case 'V':
mfiore 0:f8d65945b096 99 return 0x1c;
mfiore 0:f8d65945b096 100 case 'w':
mfiore 0:f8d65945b096 101 case 'W':
mfiore 0:f8d65945b096 102 return 0x2a;
mfiore 0:f8d65945b096 103 case 'x':
mfiore 0:f8d65945b096 104 case 'X':
mfiore 0:f8d65945b096 105 return 0x76;
mfiore 0:f8d65945b096 106 case 'y':
mfiore 0:f8d65945b096 107 case 'Y':
mfiore 0:f8d65945b096 108 return 0x6E;
mfiore 0:f8d65945b096 109 case 'z':
mfiore 0:f8d65945b096 110 case 'Z':
mfiore 0:f8d65945b096 111 return 0x5b;
mfiore 0:f8d65945b096 112 case '-':
mfiore 0:f8d65945b096 113 return 0x40;
mfiore 0:f8d65945b096 114 case '_':
mfiore 0:f8d65945b096 115 return 0x08;
mfiore 0:f8d65945b096 116
mfiore 0:f8d65945b096 117 default:
mfiore 0:f8d65945b096 118 return 0x00;
mfiore 0:f8d65945b096 119 }
mfiore 0:f8d65945b096 120 }
mfiore 0:f8d65945b096 121
mfiore 0:f8d65945b096 122 void DisplayManager::showMessage(char* message, int len) {
mfiore 0:f8d65945b096 123 int shifts = 0;
mfiore 0:f8d65945b096 124 char* cur = &message[0];
mfiore 0:f8d65945b096 125 char* back = &message[len - 1];
mfiore 0:f8d65945b096 126 uint8_t buf[4] = { 0x00, 0x00, 0x00, 0x00 };
mfiore 0:f8d65945b096 127
mfiore 0:f8d65945b096 128 while (shifts <= len + 4) {
mfiore 0:f8d65945b096 129 buf[0] = buf[1];
mfiore 0:f8d65945b096 130 buf[1] = buf[2];
mfiore 0:f8d65945b096 131 buf[2] = buf[3];
mfiore 0:f8d65945b096 132 if (cur == back) {
mfiore 0:f8d65945b096 133 buf[3] = 0x00;
mfiore 0:f8d65945b096 134 } else {
mfiore 0:f8d65945b096 135 buf[3] = convert(*cur);
mfiore 0:f8d65945b096 136 cur++;
mfiore 0:f8d65945b096 137 }
mfiore 0:f8d65945b096 138
mfiore 0:f8d65945b096 139 shifts++;
mfiore 0:f8d65945b096 140 display->writeRaw(buf);
mfiore 0:f8d65945b096 141 wait(0.5);
mfiore 0:f8d65945b096 142 }
mfiore 0:f8d65945b096 143
mfiore 0:f8d65945b096 144 wait(1);
mfiore 0:f8d65945b096 145 }
mfiore 0:f8d65945b096 146
mfiore 0:f8d65945b096 147 void DisplayManager::clear() {
mfiore 0:f8d65945b096 148 display->clear();
mfiore 0:f8d65945b096 149 }