+/*
+ * Exit Rum 2
+ * (c) Tomas 'Harvie' Mudrunka 2018
+ */
+
+//Nastaveni bomby
+
+#define DISARM_CODE "73138477"
+#define TIME_COUNTDOWN 600
+//#define TIME_COUNTDOWN 15
+
+//Prirazeni pinu
+
+#define PIN_CABLE_CHECK 2
+
+#define PIN_KEY_CLK 3 //IRQ!
+#define PIN_KEY_DATA 4
+
+#define PIN_LED_G 5
+#define PIN_LED_B 6
+#define PIN_LED_R 7
+
+#define PIN_COIL_LO 10
+#define PIN_COIL_HI 11
+
+#define ADDR_DISPLAY 0x70
+
+//////////////////////////////////////////////////////////////////
+
+#include <PS2Keyboard.h>
+
+//#include <Wire.h> // Enable this line if using Arduino Uno, Mega, etc.
+#include <Adafruit_GFX.h>
+#include "Adafruit_LEDBackpack.h"
+
+PS2Keyboard keyboard;
+Adafruit_7segment display = Adafruit_7segment();
+
+#define cnt_sec(s) (s%60)
+#define cnt_min(s) (s/60)
+#define cnt_dec(s) (cnt_min(s)*100+cnt_sec(s))
+
+void setup()
+{
+ //Pripravime periferie
+ Serial.begin(9600);
+ keyboard.begin(PIN_KEY_DATA, PIN_KEY_CLK);
+ display.begin(ADDR_DISPLAY);
+
+ pinMode(PIN_LED_R, OUTPUT);
+ pinMode(PIN_LED_G, OUTPUT);
+ pinMode(PIN_LED_B, OUTPUT);
+ pinMode(PIN_COIL_LO, OUTPUT);
+ pinMode(PIN_COIL_HI, OUTPUT);
+ pinMode(PIN_CABLE_CHECK, INPUT_PULLUP);
+}
+
+int test_disarmed(int reset)
+{
+
+ static int guessed = 0, disarmed = 0;
+ if (reset) {
+ guessed = 0;
+ disarmed = 0;
+ }
+ //Cteme klavesnici
+ while (keyboard.available()) {
+ char c = keyboard.read();
+ if (c == PS2_ENTER) {
+ Serial.println();
+ } else {
+ Serial.print(c);
+ }
+ if (c == DISARM_CODE[guessed]) {
+ guessed++;
+ Serial.println("\nGOT!");
+ } else {
+ guessed = 0;
+ Serial.println("\nFAIL!");
+ }
+ if (DISARM_CODE[guessed] == 0) {
+ disarmed = 1;
+ Serial.println("\nDISARMED!");
+ }
+ }
+
+ return disarmed;
+
+}
+
+void loop()
+{
+ //Vynulujem periferie
+ digitalWrite(PIN_COIL_LO, LOW);
+ digitalWrite(PIN_COIL_HI, LOW);
+ analogWrite(PIN_LED_R, 0);
+ analogWrite(PIN_LED_G, 0);
+ analogWrite(PIN_LED_B, 0);
+
+ display.clear();
+ display.setBrightness(15);
+ display.writeDisplay();
+
+ while (keyboard.available())
+ keyboard.read();
+ test_disarmed(1);
+
+ //Pockame na pripojeni kabelu
+ display.print(0xCAB1, HEX);
+ display.writeDisplay();
+ while (digitalRead(PIN_CABLE_CHECK))
+ delay(100);
+
+ //Pockame na odpojeni kabelu
+ display.clear();
+ display.writeDisplay();
+ while (!digitalRead(PIN_CABLE_CHECK))
+ delay(100);
+
+ //Odpocitavame
+ for (int cnt = TIME_COUNTDOWN; cnt >= 0 && !test_disarmed(0); cnt--) {
+ display.print(cnt_dec(cnt), DEC);
+ display.drawColon((cnt + 1) % 2);
+ display.writeDisplay();
+
+ analogWrite(PIN_LED_R, random(0, 3));
+ analogWrite(PIN_LED_G, random(0, 3));
+ analogWrite(PIN_LED_B, random(0, 3));
+
+ //Tikani / pipani
+ tone(PIN_COIL_LO, 1000, 50);
+ delay(60);
+ digitalWrite(PIN_COIL_LO, HIGH);
+ delay(40);
+ digitalWrite(PIN_COIL_LO, LOW);
+
+ delay(900);
+
+ }
+
+
+ while (!test_disarmed(0)) {
+ //Bomba vybouchla
+ int i;
+
+ analogWrite(PIN_LED_R, random(0, 255));
+ analogWrite(PIN_LED_G, random(0, 0));
+ analogWrite(PIN_LED_B, random(0, 255));
+
+ for (i = 0; i < 10; i++)
+ display.writeDigitRaw(i, random(0, 255));
+ display.setBrightness(random(0, 15));
+ display.writeDisplay();
+
+ digitalWrite(PIN_COIL_HI, HIGH);
+ delay(20);
+ digitalWrite(PIN_COIL_HI, LOW);
+ int rnd = random(30, 100);
+ tone(PIN_COIL_LO, random(100, 8000), rnd);
+ delay(rnd);
+ }
+
+
+ //Bomba byla deaktivovana
+ tone(PIN_COIL_LO, 3000, 500);
+ delay(500);
+ tone(PIN_COIL_LO, 5000, 500);
+ analogWrite(PIN_LED_R, 0);
+ analogWrite(PIN_LED_G, 0);
+ analogWrite(PIN_LED_B, 0);
+ display.print(0xDEFD, HEX);
+ display.writeDisplay();
+ delay(1000);
+
+
+ //Pockame na zmenu kabelu
+ char s = digitalRead(PIN_CABLE_CHECK);
+ while (digitalRead(PIN_CABLE_CHECK) == s)
+ delay(100);
+
+}