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Transmitter.ino
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Transmitter.ino
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/********************************************
date: "24.05.2023"
author: "DmitrijP1402"
filename: "Transmitter.ino"
********************************************/
// max. 60 characters possible --> 480 bits
void setup() {
Serial.begin(9600); // Start the Serial Monitor
pinMode(2, OUTPUT); // Set digital pins 2-10 as OUTPUT
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
}
byte startbit = 0; // State of the start bit
int count = 0;
void loop() {
if (Serial.available()) {
char text = Serial.read(); // Read input text and store it in 'text'
delay(10);
count = count + 1;
startbit = 1;
if (startbit == 1 && count == 2) { // Send start bit
digitalWrite(10, HIGH);
startbit = 0;
delay(10);
}
bool bit0 = bitRead(text, 7); // Convert ASCII to bits
bool bit1 = bitRead(text, 6);
bool bit2 = bitRead(text, 5);
bool bit3 = bitRead(text, 4);
bool bit4 = bitRead(text, 3);
bool bit5 = bitRead(text, 2);
bool bit6 = bitRead(text, 1);
bool bit7 = bitRead(text, 0);
digitalWrite(2, bit0); // Transmit bits through pins 2-9
digitalWrite(3, bit1);
digitalWrite(4, bit2);
digitalWrite(5, bit3);
digitalWrite(6, bit4);
digitalWrite(7, bit5);
digitalWrite(8, bit6);
digitalWrite(9, bit7);
delay(90);
Serial.println(""); // Output bits and ASCII on the Serial Monitor
Serial.print(text);
Serial.print(" --> ");
Serial.print(bit0);
Serial.print(bit1);
Serial.print(bit2);
Serial.print(bit3);
Serial.print(bit4);
Serial.print(bit5);
Serial.print(bit6);
Serial.print(bit7);
} else {
startbit = 0;
count = 0;
digitalWrite(10, LOW); // Don't send start bit
}
}