143 lines
3.2 KiB
C++
143 lines
3.2 KiB
C++
//TODO: Learn how to use radio module, transmit data with it
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//TODO: Learn how to use mic. in arduino, transmit plain sound among two arduinos and play it
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//TODO: Implement encryption and decryption using AES128, test it with text, then use to encrypt sound
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#include <LiquidCrystal_I2C.h>
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#include <SPI.h>
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#include <nRF24L01.h>
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#include <RF24.h>
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#include <AESLib.h>
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#include <EEPROM.h>
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//Components
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LiquidCrystal_I2C lcd(0x27, 16, 2);
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RF24 radio(7,8);
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//Settings
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byte unsigned address = 1;
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unsigned short key = 0;
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byte unsigned screen = 0;
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const String seed = "1305b5cfa1a59e9789de"; // "random" seed ;)
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String password;
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bool mode = 0; // 0 = transmit, 1 = recieve, bool is 2 bytes less than byte :)
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bool encryption = 1; // will the trafic be encrypted?
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//Switch screen button
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const byte switchScreenButton = 2;
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byte switchScreenLast;
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//IncreaseButton
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const byte increaseButton = 3;
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byte increaseButtonLast;
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//DecreaseButton
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const byte decreaseButton = 4;
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byte decreaseButtonLast;
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void switchMode();
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void printOutput();
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void updatePassword();
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void setup() {
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Serial.begin(9600);
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//Setting up buttons
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pinMode(switchScreenButton, INPUT_PULLUP);
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pinMode(increaseButton, INPUT_PULLUP);
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pinMode(decreaseButton, INPUT_PULLUP);
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//Setting up a radio module
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radio.begin();
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radio.setPALevel(RF24_PA_MIN);
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switchMode(); //default is recieving
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//Setting up a LCD
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lcd.init();
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lcd.backlight();
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updatePassword();
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}
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void loop() {
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// switchMode();
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byte switchButtonValue = digitalRead(switchScreenButton);
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byte increaseValue = digitalRead(increaseButton);
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byte decreaseValue = digitalRead(decreaseButton);
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if (switchButtonValue == 0 && switchScreenLast == 1) {
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screen = screen < 3? screen + 1 : 0;
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}
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if ((decreaseValue == 0 && decreaseButtonLast == 1) || increaseValue == 0 && increaseButtonLast == 1) {
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switch (screen) {
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case 0:
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mode = !mode;
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break;
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case 1:
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if (decreaseValue == 0 && decreaseButtonLast == 1)
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address = address > 0? address - 1 : 127;
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else
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address = address < 127? address + 1 : 0;
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break;
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case 2:
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if (decreaseValue == 0 && decreaseButtonLast == 1)
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key --;
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else
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key ++;
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break;
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case 3:
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encryption = !encryption;
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break;
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}
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}
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switchScreenLast = switchButtonValue;
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increaseButtonLast = increaseValue;
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decreaseButtonLast = decreaseValue;
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printOutput();
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delay(100);
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}
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void switchMode () {
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if (mode) { // transmit -> recieve
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radio.openReadingPipe(0, address);
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radio.startListening();
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} else { // recieve -> transmit
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radio.openWritingPipe(address);
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radio.stopListening();
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}
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mode = !mode;
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}
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void printOutput () {
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lcd.clear();
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switch (screen) {
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case 0:
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lcd.print("Mode: ");
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lcd.print(mode? "rec." : "tra.");
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break;
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case 1:
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lcd.print("Addr.: ");
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lcd.print(address);
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break;
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case 2:
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lcd.print("Password: ");
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lcd.print(key);
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break;
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case 3:
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lcd.print("Enc.: ");
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lcd.print(encryption? "yes" : "no");
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}
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// for (int i = 0; i < 5; i ++) lcd.print(address[i] - '0');
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//lcd.print(mode);
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}
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void updatePassword() {
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password = seed + key;
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}
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