79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
// Door buzzer detector: spectral-template matching on an I2S MEMS mic, event HTTP POST.
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#include <stdio.h>
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "esp_timer.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "audio_in.h"
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#include "board_config.h"
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#include "calibration.h"
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#include "config_store.h"
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#include "console.h"
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#include "led.h"
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#include "matcher.h"
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#include "notifier.h"
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#include "processing.h"
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static const char *TAG = "main";
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// BOOT button (GPIO0, active low). A short press (30 ms .. 1 s) starts `learn`.
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static void button_task(void *arg)
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{
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gpio_config_t io = {
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.pin_bit_mask = 1ULL << BOOT_BTN_GPIO,
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.mode = GPIO_MODE_INPUT,
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.pull_up_en = GPIO_PULLUP_ENABLE,
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};
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if (gpio_config(&io) != ESP_OK) {
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ESP_LOGE(TAG, "button gpio_config failed");
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vTaskDelete(NULL);
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}
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int64_t down_at = 0;
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for (;;) {
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vTaskDelay(pdMS_TO_TICKS(20));
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bool down = gpio_get_level(BOOT_BTN_GPIO) == 0;
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if (down && down_at == 0) {
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down_at = esp_timer_get_time();
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} else if (!down && down_at != 0) {
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int64_t held_ms = (esp_timer_get_time() - down_at) / 1000;
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down_at = 0;
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if (held_ms >= 30 && held_ms <= 1000) {
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printf("\n[BOOT button] starting learn\n");
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calibration_run_learn(false, 0.0f); // blocks this task only
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}
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}
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}
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}
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static void check(esp_err_t err, const char *what)
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{
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "%s failed: %s", what, esp_err_to_name(err));
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}
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}
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void app_main(void)
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{
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ESP_ERROR_CHECK(config_init()); // also initialises NVS
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check(led_init(), "led_init");
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ESP_ERROR_CHECK(calibration_init());
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ESP_ERROR_CHECK(matcher_init());
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ESP_ERROR_CHECK(audio_in_init());
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check(notifier_init(), "notifier_init");
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ESP_ERROR_CHECK(processing_start());
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ESP_ERROR_CHECK(audio_in_start());
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if (xTaskCreate(button_task, "button", 4096, NULL, 3, NULL) != pdPASS) {
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ESP_LOGE(TAG, "button task not created");
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}
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printf("\nDoor buzzer detector ready. Type `help`.\n");
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if (!matcher_has_template()) {
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printf("NEEDS TEMPLATE. Either:\n"
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" 1) python tools/make_template.py --buzz your_recording.wav then rebuild/flash, or\n"
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" 2) type `learn` (or short-press BOOT) and press the buzzer during the 60 s session.\n");
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}
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check(console_start(), "console_start");
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}
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