A very simple and easy way to enter the world of DX communications without learning Morse code
Devices and components
Arduino-Nano
128x64 STN LCD Graphic LED Backlight
Grove - Buzzer - Piezo
PS/2 Port
Keyboard
3mm LED: Yellow
Materials and tools
Soldering kit
Software and tools
Arduino IDE
Project description
1/* Arduino morse Encoder
2 *
3 *PS2Keyboard library example
4 PS2Keyboard now requries both pins specified for begin()
5 keyboard.begin(data_pin, irq_pin);
6
7 Valid irq pins:
8 Arduino Uno: 2, 3
9 Arduino Due: All pins, except 13 (LED)
10 Arduino Mega: 2, 3, 18, 19, 20, 21
11 Teensy 3.0: All pins, except 13 (LED)
12 Teensy 2.0: 5, 6, 7, 8
13 Teensy 1.0: 0, 1, 2, 3, 4, 6, 7, 16
14 Teensy++ 2.0: 0, 1, 2, 3, 18, 19, 36, 37
15 Teensy++ 1.0: 0, 1, 2, 3, 18, 19, 36, 37
16 Sanguino: 2, 10, 11
17
18 for more information you can read the original wiki in arduino.cc
19 at http://www.arduino.cc/playground/Main/PS2Keyboard
20 or http://www.pjrc.com/teensy/td_libs_PS2Keyboard.html
21
22 Like the Original library and example this is under LGPL license.
23
24 Modified by Cuninganreset@gmail.com on 2010-03-22
25 Modified by Paul Stoffregen <paul@pjrc.com> June 2010
26*/
27
28#include <PS2Keyboard.h>
29#include <U8g2lib.h>
30#include "Lewis.h"
31#include <TimerOne.h>
32
33
34U8G2_ST7565_ERC12864_1_4W_SW_SPI u8g2 ( U8G2_R0, /* scl=*/ 13 , /* si=*/ 11 , /* cs=*/ 10 , /* rs=*/ 9 , /* rse=*/ 8 ) ;
35
36const int DataPin = 3;
37const int IRQpin = 2;
38
39char* znak;
40char* wiersz[10]; //char workline*
41char* wiersz1[10]; //top line char*
42int wiersz_M[10]; //workline in ASCII code
43int wiersz_M1[10]; //top line in ASCII code
44byte k;
45int d, e, i; //helper variables
46byte isnm = 7; //number of words per minute
47char isnm_str[2];
48byte kursor;
49const byte index_key = 48; //number of characters in the array
50const char* KeyChar[index_key] = {
51"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s",
52"t","u","v","w","x","y","z","0","1","2","3","4","5","6","7","8","9"," ",
53"!","(",")","+",",","-",".","/","=","?","_"};
54const int ASCII[index_key] = {
55 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,
56116,117,118,119,120,121,122, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 32,
57 33, 40, 41, 43, 44, 45, 46, 47, 61, 63, 95};
58
59PS2Keyboard keyboard;
60Lewis Morse;
61
62
63void setup() {
64 delay(1000);
65 keyboard.begin(DataPin, IRQpin);
66 Serial.begin(9600);
67 // u8g2.begin ();
68 // u8g2.setContrast(20);
69 //Morse.begin(rx_pin, tx_pin, words_per_minute, use_interrupts)
70
71 Morse.begin(7,7, isnm, true);
72 u8g2.begin ();
73 u8g2.setContrast(40);
74 //use the TimerOne library for a 100Hz timer interrupt
75 Timer1.initialize(1000);
76 Timer1.attachInterrupt(MorseISR);
77}
78
79void loop() {
80 PS2(); //reading characters from the keyboard
81 if (znak == "enter" ) { Send_Morse();} //sending the line to broadcast
82 Display(); //display the line
83 Display(); //display the line
84}
85
86void PS2() {
87 if (keyboard.available()) {
88 // read the next key
89 char c = keyboard.read();
90 d = int(c);
91 // check for some of the special keys
92 if (c == PS2_ENTER) {
93 znak ="enter";
94// } else if (c == PS2_TAB) {
95// Serial.print("[Tab]");
96// } else if (c == PS2_ESC) {
97// Serial.print("[ESC]");
98 } else if (c == PS2_PAGEDOWN) {
99 isnm--;
100 if (isnm < 1 ) {isnm = 1;}
101
102 Morse.begin(7,7, isnm, true);
103 } else if (c == PS2_PAGEUP) {
104 isnm++;
105 if (isnm > 30) {isnm = 30;}
106 Morse.begin(7,7, isnm, true);
107
108 // } else if (c == PS2_LEFTARROW) {
109 // Serial.print("[Left]");
110 // } else if (c == PS2_RIGHTARROW) {
111 // Serial.print("[Right]");
112 // } else if (c == PS2_UPARROW) {
113 // Serial.print("[Up]");
114 // } else if (c == PS2_DOWNARROW) {
115 // Serial.print("[Down]");
116 } else if (c == PS2_DELETE) {
117 znak = "back";
118 i--;
119 znak = " ";
120 wiersz[i] = znak;
121 wiersz_M[i] = d;
122 } else {
123 // otherwise substitute a regular letter
124 getKeyChar(); //converting char to char*
125 wiersz[i] = znak;
126 wiersz_M[i] = d;
127 if (i > 9) {i = -1;}
128 if (znak == "enter"){i = -1;}
129 if (znak != "back" && znak != "enter") {i++;} //increase character counter
130 }
131 }
132}
133
134void Display() { //display data on the LCD
135 kursor++;
136 if (kursor >20){ kursor = 0;}
137 sprintf(isnm_str,"%d", isnm); //converting a number to a string
138 u8g2.firstPage();
139 do {
140 u8g2.setFont(u8g2_font_10x20_tr);
141 u8g2.drawStr(0, 15, "Morse");
142 u8g2.drawStr(75, 15, isnm_str);
143 u8g2.drawStr(98, 15, "w/m");
144 for (k = 0; k < 10; k++){
145 u8g2.drawStr(k*10, 40, wiersz1[k] );
146 u8g2.drawStr(k*10, 60, wiersz[k] );
147 }
148 if (kursor<15){u8g2.drawStr(i*10, 60, "_" );} //display the cursor
149 if (kursor>5){u8g2.drawStr(i*10, 60, " " );} //cursor blinking
150 } while ( u8g2.nextPage() );
151}
152
153void Send_Morse(){
154 znak = " ";
155 for (int k = 0; k < 10; k++) {
156 wiersz1[k] = " "; //cash
157 wiersz1[k] = wiersz[k]; //rewriting characters from the working line to the top
158 wiersz[k] = " "; //delete work line
159 wiersz_M1[k] = 32; //delete ASCII top line
160 wiersz_M1[k] = wiersz_M[k]; //rewrite ASCII from the working line to the top line
161 wiersz_M[k] = 32; //delete ASCII worklineroboczego
162 }
163 for (int k = 1; k < 10; k++){
164 e = wiersz_M1[k];
165 Morse.write(e); //morse the contents of the top line
166 }
167 i = 0;
168}
169
170void MorseISR(){
171 Morse.timerISR(); //function triggered by interrupts (keyboard)
172}
173
174void getKeyChar() { //converting a key code into a letter and an ASCII code
175 for (k = 0; k <= index_key; k++){
176 if (ASCII[k] == d) { znak = KeyChar[k];} //convert key code to letter
177 }
178 k = 0;
179}
Downloadable files
diagram with LED
with Led.png
Diagram with relays
with relay module.png
Note: Content and images are from: https://projecthub.arduino.cc/, with some modifications.
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