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--- pm:prj2025:cmoarcas:adrian.ariton [2025/05/13 11:30]
adrian.ariton
+++ pm:prj2025:cmoarcas:adrian.ariton [2025/05/25 22:21] (current)
adrian.ariton
@@ Line 2: / Line 2: @@
 ===== Introducere =====
+<html><iframe width="560" height="315" src="https://www.youtube.com/embed/TrdBkxlq2JE?si=ej5ocPEVzuya_28Z" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe></html>
+https://github.com/adrianariton/PMProj
+Updated project:
+https://youtube.com/shorts/TrdBkxlq2JE?feature=share
+Old version:
+https://youtube.com/shorts/uZILq4yrm3E?feature=share
 Proiectul **"Bomb Defusal Challenge"** este un joc fizic interactiv inspirat de "Keep Talking and Nobody Explodes".
@@ Line 94: / Line 103: @@
-===== Schema Logica Hardware =====
+==== Schema Logica Hardware ====
 {{pm:prj2025:cmoarcas:adi_schema.png?500 | Schema HW}}
-===== PCB =====
+==== PCB ====
 {{pm:prj2025:cmoarcas:pcbadi.png?500 | PCB}}
@@ Line 105: / Line 114: @@
 - U1: BMP190 (Temp + Presiune) I2C
 - U3: MPU6500 (Giroscop) I2C
@@ Line 117: / Line 127: @@
   * (etapa 3) surse şi funcţii implementate
 </note>
+=== Descriere ===
+Deignuit pe Platformio: VSCode.
+Biblioteci:
+* driver/dac.h - pt sunet
+* TFT_eSPI.h - pt display
+* Arduino.h - pt ft putine lucruri (setup)
+=== Code Snippets ===
+Timer loop:
+Timer loopul se triggeruieste la fiecare tick, si mentine starea jocului prin urmatorul loop:
+  void IRAM_ATTR onTimer() {
+    portENTER_CRITICAL_ISR(&timerMux);
+    myMillis++;
+    if (myMillis % 200 == 0) {
+      if (is_active(GAME_SIMON_SAYS)) {
+        if (simon_can_do_next_round){
+          simon_last_round_begin_milis = myMillis;
+          simon_can_do_next_round = false;
+          simon_round_ongoing = true;
+        }
+        int deltaMillisTilStart = (myMillis - simon_last_round_begin_milis);
+        if ((myMillis - simon_last_round_begin_milis) <= simon_round_intro_time_delay_milis) {
+          // round pending
+          if (deltaMillisTilStart % 1000 == 0)
+            simonOnRoundPrepareTick((simon_round_intro_time_delay_milis - deltaMillisTilStart) / 1000);
+        } else {
+          if (!simon_semaphore_started){
+            simonOnRoundStart();
+            simon_semaphore_started = true;
+          }
+          int time_since_round_semaphore_start = deltaMillisTilStart - simon_round_intro_time_delay_milis;
+          int tick_cnt = time_since_round_semaphore_start / simon_time_delay_between_colors;
+          if (time_since_round_semaphore_start % simon_time_delay_between_colors == 0) {
+            if (tick_cnt <= simon_size_of_colors)
+              simonOnRoundStartTick(tick_cnt);
+            else {
+              if (!simon_can_begin_pressing){
+                simonOnGameEnd();
+              }
+              simon_can_begin_pressing = true;
+            }
+          }
+        }
+      } else if (is_active(GAME_WIRE_CUTTING)) {
+        if (!wire_cut_game_started){
+          wireCutOnStart();
+          wire_cut_game_started = true;
+          wire_cut_game_start_time = myMillis;
+        }
+        if (wire_cut_game_started) {
+          int deltaMilisSinceWireCutStart = (myMillis - wire_cut_game_start_time);
+          if (deltaMilisSinceWireCutStart % 1000 == 0) {
+            int ticks = deltaMilisSinceWireCutStart / 1000;
+            if (ticks < wire_cut_game_duration_seconds)
+              wireCutOnGameTick(wire_cut_game_duration_seconds - ticks);
+            else if (!wire_cut_game_ended) {
+              wire_cut_game_ended = true;
+              wire_cut_game_won = false;
+            }
+          }
+        }
+      } else if (is_active(GAME_PASS_UNLOCK)) {
+        if (!pass_game_started) {
+          pass_game_started = true;
+          pass_game_start_time = myMillis;
+          passUnlockOnStart();
+        }
+        if (pass_game_started) {
+          int dm = (myMillis - pass_game_start_time);
+          if (dm % 1000 == 0) {
+            int ticks = dm / 1000;
+            if (ticks < pass_game_time_limit_seconds)
+              passUnlockOnGameTick(pass_game_time_limit_seconds - ticks);
+            else if (!pass_game_ended) {
+              pass_game_ended = true;
+                pass_game_won = false;
+              }
+            }
+          }
+        }
+    }
+    portEXIT_CRITICAL_ISR(&timerMux);
+  }
+* Fiecare callback este implemetat:
+- Simon Games callbacks defns & vars:
+  int simon_size_of_colors = 3;
+  char simonBufferSemaphoreSize = 0;
+  char simonBufferCompareIdx = 0;
+  void simonOnRoundPrepareTick(int tick_count);
+  void simonOnRoundStart();
+  void simonOnRoundStartTick(int tick_count);
+  void simonOnGameEnd();
+- Wire Cut callbacks defns & vars:
+  volatile int wire_cut_game_duration_seconds = 20;
+  volatile int wire_cut_game_target_wire = -1;
+  void wireCutOnStart();
+  void wireCutOnGameTick(int ticks_left);
+  void wireCutOnEnd(bool won);
+- Finger scan callbacks defns & vars:
+  int pass_env_temperatures_read_interv_millis = 1000; // pt calibrarea temperaturii de mediu
+  const int pass_env_temperatures_read_limit = 10;
+  const float pass_temp_threshold_celsius = 0.5;
+  volatile int pass_game_time_limit_seconds = 10;
+  void passUnlockOnStart();
+  void passUnlockOnGameTick(int ticks_left);
+  void passUnlockOnEnd(bool won);
+! Singura folosire a delay-ului implementat nu de mine (custom) e in functia de playNote care ajuta la audio.
+  const int dacPin = 25;    // DAC1 - GPIO25
+  const int frequency = 1000;  // tone frequency Hz
+  const int duration = 100;   // duration in ms
+  void playTone(int freq, int dur_ticks=1) {
+    int samplesPerCycle = 100;          // number of samples per waveform cycle
+    int sampleDelayUs = 1000000 / (freq * samplesPerCycle);
+    int amplitude = 64;                // 8-bit DAC mid-range (0-255)
+    int dur_ms = dur_ticks * duration;
+    unsigned long endTime = millis() + dur_ms;
+    while (millis() < endTime) {
+      for (int i = 0; i < samplesPerCycle; i++) {
+        // Generate a sine wave sample (scaled 0-255)
+        float sineVal = sin(2 * PI * i / samplesPerCycle);
+        uint8_t dacVal = (uint8_t)(amplitude + amplitude * sineVal);
+        dac_output_voltage(DAC_CHANNEL_1, dacVal);
+        delayMicroseconds(sampleDelayUs);
+      }
+    }
+    dac_output_voltage(DAC_CHANNEL_1, 128); // center output (silence)
+  }
+care nu e inclus in cele 3 laboratoare.
+I2C ul se face pe pinii 26 si 27, pt ca pinul 25 e folosit pt DAC.
+Acesta e conectat atat la senzorl giroscopic cat si la cel de temperatura.
+Senzorii de giroscop si temperatura sunt implementati cu drivere programate de mine dupa datasheets.
+E.g. (girocop):
+  // Calculate B5 value from the datasheet
+  int32_t computeB5(int32_t UT) {
+    int32_t X1 = (UT - (int32_t)ac6) * ((int32_t)ac5) >> 15;
+    int32_t X2 = ((int32_t)mc << 11) / (X1 + (int32_t)md);
+    return X1 + X2;
+  }
+  float readTemperature() {
+    int32_t UT = readRawTemperature();
+    int32_t B5 = computeB5(UT);
+    // Temperature in units of 0.1 deg C
+    float temp = ((B5 + 8) >> 4);
+    // Convert to degrees C
+    return temp / 10.0;
+  }
+  uint32_t readRawPressure() {
+    write8(BMP180_CONTROL, BMP180_READPRESSURECMD + (oversampling << 6));
+    // Wait for conversion based on oversampling setting
+    if (oversampling == BMP180_ULTRALOWPOWER)
+      delay(5);
+    else if (oversampling == BMP180_STANDARD)
+      delay(8);
+    else if (oversampling == BMP180_HIGHRES)
+      delay(14);
+    else
+      delay(26);
+    uint32_t MSB = read8(BMP180_PRESSUREDATA);
+    uint32_t LSB = read8(BMP180_PRESSUREDATA + 1);
+    uint32_t XLSB = read8(BMP180_PRESSUREDATA + 2);
+    // Combine readings with proper shifting based on oversampling
+    uint32_t raw = ((MSB << 16) + (LSB << 8) + XLSB) >> (8 - oversampling);
+    return raw;
+  }
+  int32_t readPressure() {
+    // Read raw temperature value first
+    int32_t UT = readRawTemperature();
+    // Then read raw pressure value
+    int32_t UP = readRawPressure();
+    // Temperature compensation
+    int32_t B5 = computeB5(UT);
+    // Do pressure calculations (straight from Adafruit code)
+    int32_t B6 = B5 - 4000;
+    int32_t X1 = ((int32_t)b2 * ((B6 * B6) >> 12)) >> 11;
+    int32_t X2 = ((int32_t)ac2 * B6) >> 11;
+    int32_t X3 = X1 + X2;
+    int32_t B3 = ((((int32_t)ac1 * 4 + X3) << oversampling) + 2) / 4;
+    X1 = ((int32_t)ac3 * B6) >> 13;
+    X2 = ((int32_t)b1 * ((B6 * B6) >> 12)) >> 16;
+    X3 = ((X1 + X2) + 2) >> 2;
+    uint32_t B4 = ((uint32_t)ac4 * (uint32_t)(X3 + 32768)) >> 15;
+    uint32_t B7 = ((uint32_t)UP - B3) * (uint32_t)(50000UL >> oversampling);
+    int32_t p;
+    if (B7 < 0x80000000) {
+      p = (B7 * 2) / B4;
+    } else {
+      p = (B7 / B4) * 2;
+    }
+    X1 = (p >> 8) * (p >> 8);
+    X1 = (X1 * 3038) >> 16;
+    X2 = (-7357 * p) >> 16;
+    p = p + ((X1 + X2 + (int32_t)3791) >> 4);
+    return p; // Pressure in Pa
+  }
+  // Calculate altitude based on atmospheric pressure
+  float readAltitude(float seaLevelPressure) {
+    float pressure = readPressure();
+    float altitude = 44330 * (1.0 - pow(pressure / seaLevelPressure, 0.1903));
+    return altitude;
+  }
+== Dificultati: ==
+* am setat frecventa la ceasul de transmisie i2c mai jos pt a compensa rezistentele de pullup puse in paralel
 ===== Rezultate Obţinute =====
@@ Line 123: / Line 383: @@
 Care au fost rezultatele obţinute în urma realizării proiectului vostru.
 </note>
+* Jocuri calibrabile si modificabile
+* Un workflow nedependent de main loop
 ===== Concluzii =====
@@ Line 134: / Line 398: @@
 </note>
+https://github.com/adrianariton/PMProj
 ===== Jurnal =====
@@ Line 142: / Line 408: @@
 Laburi folosite:
-- Timere
+- GPIO
-- Intreruperi
-- I2C
+- Timere (flow-ul jocului)
+- Intreruperi (butoane/fire)
+- I2C (senzorii de temp si de giroscop comunica in tandem pe magistrala SDA SCL conectate la Pinii 25 si 26)
 ===== Bibliografie/Resurse =====