we could do to Create a link (program or interface (no external components)) between Morse
and a flashlight and that should blink with respective to Morse
but could not do to .Create another program to record the flash and that flash-toggling should be
again reconverted into Morse and then decrypted into text.
in tinker cad the photodiode or ldr is not varied depending the light…(.it should be varied manully in tinker cad…)
i need the photo diode or ldr to vary automatically on the change of led
i will attach the code and snip of tinker cad ,better if you do it on ther platform and share …plz
transmitter code
const char* MorseTable[] = {
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
// space, !, ", #, $, %, &, ’
NULL, “-.-.–”, “.-…-.”, NULL, NULL, 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, “…–.-”,
// ’ a b c d e f g
NULL, “.-”, “-…”, “-.-.”, “-…”, “.”, “…-.”, “–.”,
// h i j k l m n o
“…”, “…”, “.—”, “-.-”, “.-…”, “–”, “-.”, “—”,
// p q r s t u v w
“.–.”, “–.-”, “.-.”, “…”, “-”, “…-”, “…-”, “.–”,
// x y z { | } ~ DEL
“-…-”, “-.–”, “–…”, NULL, NULL, NULL, NULL, NULL,
};
int dotLength = 50;
int dashLength = dotLength*3;
void setup() {
// put your setup code here, to run once:
pinMode(13, OUTPUT);
Serial.begin(9600);
}
void loop() {
char ch;
if(Serial.available()){
ch = Serial.read();
flashDashDot(MorseTable[ch]);
delay(dotLength*2);
}
}
void flashDashDot(const char * morseCode)
{
int i = 0;
while(morseCode[i] != 0)
{
if(morseCode[i] == ‘.’){
dot();
} else if (morseCode[i] == ‘-’){
dash();
}
i++;
}
}
void dot()
{
digitalWrite(13, HIGH);
delay(dotLength);
digitalWrite(13, LOW);
delay(dotLength);
}
void dash()
{
digitalWrite(13, HIGH);
delay(dashLength);
digitalWrite(13, LOW);
delay(dotLength);
}
Receiver code
//Morse Code Binary Tree
// Left child at 2n+1
// Right child at 2n+2
// <.|->
// .E -T
// .I -A .N -M
//
const char MorseTree[] = {’\0’,‘E’, ‘T’, ‘I’, ‘A’, ‘N’, ‘M’, ‘S’,
‘U’, ‘R’, ‘W’, ‘D’, ‘K’, ‘G’, ‘O’, ‘H’,
‘V’, ‘F’, ‘U’, ‘L’, ‘A’, ‘P’, ‘J’, ‘B’,
‘X’, ‘C’, ‘Y’, ‘Z’, ‘Q’, ‘\0’,’\0’,‘5’,
‘4’, ‘\0’,‘3’, ‘\0’,’\0’,’\0’,‘2’, ‘\0’,
‘\0’,’+’, ‘\0’,’\0’,’\0’,’\0’,‘1’, ‘6’,
‘=’, ‘/’, ‘\0’,’\0’,’\0’,’(’, ‘\0’,‘7’,
‘\0’,’\0’,’\0’,‘8’, ‘\0’,‘9’, ‘0’, ‘\0’,
‘\0’,’\0’,’\0’,’\0’,’\0’,’\0’,’\0’,’\0’,
‘\0’,’\0’,’\0’,’?’, ‘_’, ‘\0’,’\0’,’\0’,
‘\0’,’"’, ‘\0’,’\0’,’.’, ‘\0’,’\0’,’\0’,
‘\0’,’@’, ‘\0’,’\0’,’\0’,’\0’,’\0’,’\0’,
‘-’, ‘\0’,’\0’,’\0’,’\0’,’\0’,’\0’,’\0’,
‘\0’,’;’, ‘!’, ‘\0’,’)’, ‘\0’,’\0’,’\0’,
‘\0’,’\0’,’,’, ‘\0’,’\0’,’\0’,’\0’,’:’,
‘\0’,’\0’,’\0’,’\0’,’\0’,’\0’,’\0’
};
int val = 0; // A Variable to Store the Light Value from the LDR
int ctrHigh = 0;
int ctrLow = 0;
int codePtr = 0;
int dotLen = 400;
void setup()
{
Serial.begin(9600);// Start a Serial Connection
Serial.print(codePtr);
}
void loop()
{
val = analogRead(4);
if (val >= 10)
{
ctrHigh++;
ctrLow = 0;
digitalWrite(13, HIGH);
tone(9, 1000);
} else {
ctrLow++;
if ((ctrHigh >= dotLen) && (ctrHigh < dotLen2)) {
Serial.print(".");
codePtr = (2codePtr) + 1;
} else if (ctrHigh >= dotLen * 2) {
Serial.print("-");
codePtr = (2codePtr) + 2;
} else {
if(ctrLow == dotLen2){
Serial.print(MorseTree[codePtr]);
codePtr = 0;
}
}
ctrHigh = 0;
digitalWrite(13, LOW);
noTone(9);
}
}
…
if photodiode recognizes the led light then it will decode ,but in tinker cad the photodiode is not recving the led light as shown in diagram… pls look into it .
even if you have any simullation please attach
