generated from github/welcome-to-github
-
Notifications
You must be signed in to change notification settings - Fork 0
/
transmitter.ino
192 lines (166 loc) · 3.28 KB
/
transmitter.ino
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
int button1 = 11;
int button2 = 10;
int button3 = 12;
#define DEBUG
const int UNIT_LENGTH = 100;
const int DIT_LENGTH = UNIT_LENGTH * 1;
const int DAH_LENGTH = UNIT_LENGTH * 3;
const int ELEMENT_GAP = UNIT_LENGTH * 1;
const int SHORT_GAP = UNIT_LENGTH * 2;
const int MEDIUM_GAP = UNIT_LENGTH * 4;
const char* codeset[] = {
/* ! */ "-.-.--",
/* " */ ".-..-.",
/* # */ NULL,
/* $ */ "...-..-",
/* % */ NULL,
/* & */ ".-...",
/* ' */ ".----.",
/* ( */ "-.--.",
/* ) */ "-.--.-",
/* * */ NULL,
/* + */ ".-.-.",
/* , */ "--..--",
/* - */ "-....-",
/* . */ ".-.-.-",
/* / */ "-..-.",
/* 0 */ "-----",
/* 1 */ ".----",
/* 2 */ "..---",
/* 3 */ "...--",
/* 4 */ "....-",
/* 5 */ ".....",
/* 6 */ "-....",
/* 7 */ "--...",
/* 8 */ "---..",
/* 9 */ "----.",
/* : */ "---...",
/* ; */ "-.-.-.",
/* < */ NULL,
/* = */ "-...-",
/* > */ NULL,
/* ? */ "..--..",
/* @ */ ".--.-.",
/* A */ ".-",
/* B */ "-...",
/* C */ "-.-.",
/* D */ "-..",
/* E */ ".",
/* F */ "..-.",
/* G */ "--.",
/* H */ "....",
/* I */ "..",
/* J */ ".---",
/* K */ "-.-",
/* L */ ".-..",
/* M */ "--",
/* N */ "-.",
/* O */ "---",
/* P */ ".--.",
/* Q */ "--.-",
/* R */ ".-.",
/* S */ "...",
/* T */ "-",
/* U */ "..-",
/* V */ "...-",
/* W */ ".--",
/* X */ "-..-",
/* Y */ "-.--",
/* Z */ "--..",
/* [ */ NULL,
/* \ */ NULL,
/* ] */ NULL,
/* ^ */ NULL,
/* _ */ "..--.-"
};
const char* getCode(char c) {
// To uppercase if needed
if ('a' <= c && c <= 'z') {
c = c - ('a' - 'A');
}
if ('!' <= c && c <= '_') {
return codeset[c - '!'];
}
return NULL;
}
void dit()
{
#ifdef DEBUG
Serial.print(".");
#endif
digitalWrite(7, HIGH);
delay(DIT_LENGTH);
digitalWrite(7, LOW);
delay(ELEMENT_GAP);
}
void dah()
{
#ifdef DEBUG
Serial.print("-");
#endif
digitalWrite(7, HIGH);
delay(DAH_LENGTH);
digitalWrite(7, LOW);
delay(ELEMENT_GAP);
}
void letter()
{
#ifdef DEBUG
Serial.print(" ");
#endif
delay(SHORT_GAP);
}
void space()
{
#ifdef DEBUG
Serial.println();
#endif
delay(MEDIUM_GAP);
}
void play(const char * input) {
int inputLength = strlen(input);
for (int i = 0; i < inputLength; i++) {
char c = input[i];
if (c == ' ') {
space();
}
else {
const char* code = getCode(c);
if (code == NULL) {
continue;
}
int codeLength = strlen(code);
for (int j = 0; j < codeLength; j++) {
if (code[j] == '.') {
dit();
}
else if (code[j] == '-') {
dah();
}
}
letter();
}
}
}
const char* text = "HELLO";
const char* text2 = "..TEST2.";
const char* text3 = "/MORSE CODE.";
void setup() {
pinMode(7, OUTPUT);
pinMode(button1, INPUT_PULLUP);
pinMode(button2, INPUT_PULLUP);
pinMode(button3, INPUT_PULLUP);
Serial.begin(19200);
}
// the loop function runs over and over again forever
void loop() {
if (digitalRead(button1) == LOW) {
play(text);
}
if (digitalRead(button2) == LOW) {
play(text2);
}
if (digitalRead(button3) == LOW) {
play(text3);
}
}