wip:

README.md

@@ -1,3 +1,24 @@
 # esp_component_template
 
-esp_component_template
+esp_component_template
+
+#include "zh_tachometer.h"
+
+zh_tachometer_handle_t tachometer_handle = {0};
+
+void app_main(void)
+{
+    esp_log_level_set("zh_tachometer", ESP_LOG_ERROR);
+    zh_tachometer_init_config_t config = ZH_TACHOMETER_INIT_CONFIG_DEFAULT();
+    config.a_gpio_number = GPIO_NUM_26;
+    config.b_gpio_number = GPIO_NUM_27;
+    config.encoder_pulses = 3600;
+    zh_tachometer_init(&config, &tachometer_handle);
+    for (;;)
+    {
+        int16_t value = 0;
+        zh_tachometer_get(&tachometer_handle, &value);
+        printf("Tachometer value is %d rpm.\n", value);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+}