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encrypted-walkie-talkie
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implemenetd first TODO

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leca 2023-04-20 17:32:59 +03:00
parent 0001755388
commit 6be93695ce
1 changed files with 91 additions and 11 deletions
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102
code/code.ino
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@ -1,4 +1,3 @@
//TODO: Divide interface with screens, each screen is a settings for each feature (address, mode, password, encryption on/off)
//TODO: Learn how to use radio module, transmit data with it
//TODO: Learn how to use mic. in arduino, transmit plain sound among two arduinos and play it
//TODO: Implement encryption and decryption using AES128, test it with text, then use to encrypt sound
@ -8,17 +7,32 @@
#include <nRF24L01.h>
#include <RF24.h>
#include <AESLib.h>
#include <EEPROM.h>
//Components
LiquidCrystal_I2C lcd(0x27, 16, 2);
RF24 radio(7,8);
//Settings
byte unsigned address = -1;
byte unsigned address = 1;
unsigned short key = 0;
String seed = "1305b5cfa1a59e9789de"; // "random" seed ;)
byte unsigned screen = 0;
const String seed = "1305b5cfa1a59e9789de"; // "random" seed ;)
String password;
bool mode = 0; // 0 = transmit, 1 = recieve, bool is 2 bytes less than byte :)
bool encryption = 1; // will the trafic be encrypted?
//Switch screen button
const byte switchScreenButton = 2;
byte switchScreenLast;
//IncreaseButton
const byte increaseButton = 3;
byte increaseButtonLast;
//DecreaseButton
const byte decreaseButton = 4;
byte decreaseButtonLast;
void switchMode();
void printOutput();
@ -27,6 +41,11 @@ void updatePassword();
void setup() {
Serial.begin(9600);
//Setting up buttons
pinMode(switchScreenButton, INPUT_PULLUP);
pinMode(increaseButton, INPUT_PULLUP);
pinMode(decreaseButton, INPUT_PULLUP);
//Setting up a radio module
radio.begin();
radio.setPALevel(RF24_PA_MIN);
@ -40,9 +59,56 @@ void setup() {
}
void loop() {
switchMode();
// switchMode();
byte switchButtonValue = digitalRead(switchScreenButton);
byte increaseValue = digitalRead(increaseButton);
byte decreaseValue = digitalRead(decreaseButton);
if (switchButtonValue == 0 && switchScreenLast == 1) {
screen = screen < 3? screen + 1 : 0;
}
if (increaseValue == 0 && increaseButtonLast == 1) {
switch (screen) {
case 0:
mode = 1;
break;
case 1:
address = address < 127? address + 1 : 0;
break;
case 2:
key ++;
break;
case 3:
encryption = 1;
break;
}
}
if (decreaseValue == 0 && decreaseButtonLast == 1) {
switch (screen) {
case 0:
mode = 0;
break;
case 1:
address = address > 0? address - 1 : 127;
break;
case 2:
key --;
break;
case 3:
encryption = 0;
break;
}
}
switchScreenLast = switchButtonValue;
increaseButtonLast = increaseValue;
decreaseButtonLast = decreaseValue;
printOutput();
delay(500);
delay(100);
}
void switchMode () {
@ -58,12 +124,26 @@ void switchMode () {
}
void printOutput () {
lcd.setCursor(0, 0);
lcd.print("Mode: ");
lcd.print(mode? "rec." : "tra.");
lcd.setCursor(0, 1);
lcd.print("Addr.: ");
lcd.print(address);
lcd.clear();
switch (screen) {
case 0:
lcd.print("Mode: ");
lcd.print(mode? "rec." : "tra.");
break;
case 1:
lcd.print("Addr.: ");
lcd.print(address);
break;
case 2:
lcd.print("Password: ");
lcd.print(key);
break;
case 3:
lcd.print("Enc. :");
lcd.print(encryption? "yes" : "no");
}
// for (int i = 0; i < 5; i ++) lcd.print(address[i] - '0');
//lcd.print(mode);
}