Jose
91b24e0da0
- New HTML file added to the `data` directory for a piano spectrum analyzer. - Updated `Config.h` with WiFi settings and web configuration portal details. - Update the Arduino sketch with WiFi and WebSocket support, enabling real-time spectrum data transmission over the web.
90 lines
4.5 KiB
C++
90 lines
4.5 KiB
C++
#pragma once
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#include <cstdint>
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namespace Config {
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// Serial Configuration
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constexpr int SERIAL_BAUD_RATE = 115200; // Serial communication baud rate
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// WiFi Configuration
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constexpr const char* WIFI_AP_NAME = "ESP32Piano"; // AP name when in configuration mode
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constexpr const char* WIFI_AP_PASSWORD = "12345678"; // AP password when in configuration mode
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constexpr uint32_t WIFI_CONFIG_TIMEOUT = 180; // Seconds to wait for WiFi configuration
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constexpr uint32_t WIFI_CONFIG_PORT = 80; // Web configuration portal port
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// I2S Pin Configuration
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constexpr int I2S_MIC_SERIAL_CLOCK = 8; // SCK
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constexpr int I2S_MIC_LEFT_RIGHT_CLOCK = 9; // WS/LRC
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constexpr int I2S_MIC_SERIAL_DATA = 10; // SD
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// I2S Configuration
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constexpr int SAMPLE_RATE = 8000; // Hz - good for frequencies up to 4kHz
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constexpr int BITS_PER_SAMPLE = 16; // Changed to 16-bit
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constexpr int CHANNELS = 1; // Mono input
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constexpr int SAMPLE_BUFFER_SIZE = 1024; // Match FFT_SIZE for efficiency
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// DMA Configuration
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constexpr int DMA_BUFFER_COUNT = 4; // Reduced for lower latency
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constexpr int DMA_BUFFER_LEN = 512; // Smaller chunks for faster processing
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// Audio Processing
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constexpr float DC_OFFSET = 0.0f; // DC offset correction
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constexpr float GAIN = 4.0f; // Increased gain for better note detection
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constexpr int16_t NOISE_THRESHOLD = 100; // Lower threshold for 16-bit samples
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constexpr int16_t DEFAULT_RANGE_LIMIT = 32767; // Max value for 16-bit
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constexpr float DECAY_FACTOR = 0.7f; // Faster decay for quicker note changes
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// FFT Configuration
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constexpr int FFT_SIZE = 1024; // Must be power of 2, gives ~7.8 Hz resolution at 8kHz
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constexpr float FREQUENCY_RESOLUTION = static_cast<float>(SAMPLE_RATE) / FFT_SIZE;
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// Piano Note Frequencies (Hz)
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constexpr float NOTE_FREQ_C2 = 65.41f; // Lowest note we'll detect
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constexpr float NOTE_FREQ_C3 = 130.81f;
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constexpr float NOTE_FREQ_C4 = 261.63f; // Middle C
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constexpr float NOTE_FREQ_C5 = 523.25f;
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constexpr float NOTE_FREQ_C6 = 1046.50f; // Highest note we'll detect
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// Note Detection Parameters
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constexpr float FREQUENCY_TOLERANCE = 3.0f; // Hz tolerance, increased for better detection
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constexpr float MIN_MAGNITUDE_THRESHOLD = 500.0f; // Adjusted for 16-bit samples
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constexpr int MAX_SIMULTANEOUS_NOTES = 7; // Maximum number of notes to detect simultaneously
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constexpr float PEAK_RATIO_THRESHOLD = 0.1f; // Peaks must be at least this ratio of the strongest peak
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// Timing and Debug
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constexpr uint32_t LEVEL_UPDATE_INTERVAL_MS = 50; // Faster updates for better responsiveness
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constexpr bool ENABLE_DEBUG = true; // Enable debug output
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constexpr int DEBUG_INTERVAL_MS = 1000; // Debug print interval
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// System Configuration
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constexpr uint32_t TASK_STACK_SIZE = 4096; // Audio task stack size
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constexpr uint8_t TASK_PRIORITY = 2; // Increased priority for more consistent timing
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constexpr uint8_t TASK_CORE = 1; // Run on second core to avoid interference
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// Calibration Parameters
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constexpr bool CALIBRATION_MODE = false; // Set to true to enable calibration output
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constexpr int CALIBRATION_DURATION_MS = 5000; // Duration to collect calibration data
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constexpr float CALIBRATION_PEAK_PERCENTILE = 0.95f; // Use 95th percentile for thresholds
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// Note Detection Timing
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constexpr int NOTE_PRINT_INTERVAL_MS = 100; // How often to print detected notes
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constexpr int MIN_NOTE_DURATION_MS = 50; // Minimum duration to consider a note valid
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constexpr int NOTE_RELEASE_TIME_MS = 100; // Time before considering a note released
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// Serial Commands
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constexpr char CMD_HELP = 'h'; // Show help
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constexpr char CMD_CALIBRATE = 'c'; // Start calibration
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constexpr char CMD_THRESHOLD_UP = '+'; // Increase sensitivity
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constexpr char CMD_THRESHOLD_DOWN = '-'; // Decrease sensitivity
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constexpr char CMD_TOGGLE_SPECTRUM = 's'; // Toggle spectrum display
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constexpr float THRESHOLD_STEP = 0.1f; // Threshold adjustment step
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// Command Response Messages
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constexpr const char* MSG_HELP =
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"Commands:\n"
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"h - Show this help\n"
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"c - Start calibration\n"
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"+ - Increase sensitivity\n"
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"- - Decrease sensitivity\n"
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"s - Toggle spectrum display\n";
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} |