diff --git a/ESP-IDF_Robot/build/.ninja_lock b/ESP-IDF_Robot/build/.ninja_lock
new file mode 100644
index 000000000..e69de29bb
diff --git a/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref b/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
index 7d2c53528..e35841c60 100644
--- a/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
+++ b/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
@@ -1 +1 @@
-ad60d895e8210766ffb98e7e17c7b6546f14a278
+a845724773d9756901c2e6e1aed5250f9b4f6e67
diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index d99ba5ab8..d72f9b25d 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -599,6 +599,70 @@ static void espnow_deinit(espnow_send_param_t *send_param)
     esp_now_deinit();
 }
 
+/*---------------------------------------------------------------
+        ADC Calibration
+---------------------------------------------------------------*/
+static bool adc_calibration_init(adc_unit_t unit, adc_channel_t channel, adc_atten_t atten, adc_cali_handle_t *out_handle)
+{
+    adc_cali_handle_t handle = NULL;
+    esp_err_t ret = ESP_FAIL;
+    bool calibrated = false;
+
+#if ADC_CALI_SCHEME_CURVE_FITTING_SUPPORTED
+    if (!calibrated) {
+        ESP_LOGI(TAG, "calibration scheme version is %s", "Curve Fitting");
+        adc_cali_curve_fitting_config_t cali_config = {
+            .unit_id = unit,
+            .chan = channel,
+            .atten = atten,
+            .bitwidth = ADC_BITWIDTH_DEFAULT,
+        };
+        ret = adc_cali_create_scheme_curve_fitting(&cali_config, &handle);
+        if (ret == ESP_OK) {
+            calibrated = true;
+        }
+    }
+#endif
+
+#if ADC_CALI_SCHEME_LINE_FITTING_SUPPORTED
+    if (!calibrated) {
+        ESP_LOGI(TAG, "calibration scheme version is %s", "Line Fitting");
+        adc_cali_line_fitting_config_t cali_config = {
+            .unit_id = unit,
+            .atten = atten,
+            .bitwidth = ADC_BITWIDTH_DEFAULT,
+        };
+        ret = adc_cali_create_scheme_line_fitting(&cali_config, &handle);
+        if (ret == ESP_OK) {
+            calibrated = true;
+        }
+    }
+#endif
+
+    *out_handle = handle;
+    if (ret == ESP_OK) {
+        ESP_LOGI(TAG, "Calibration Success");
+    } else if (ret == ESP_ERR_NOT_SUPPORTED || !calibrated) {
+        ESP_LOGW(TAG, "eFuse not burnt, skip software calibration");
+    } else {
+        ESP_LOGE(TAG, "Invalid arg or no memory");
+    }
+
+    return calibrated;
+}
+
+static void adc_calibration_deinit(adc_cali_handle_t handle)
+{
+#if ADC_CALI_SCHEME_CURVE_FITTING_SUPPORTED
+    ESP_LOGI(TAG, "deregister %s calibration scheme", "Curve Fitting");
+    ESP_ERROR_CHECK(adc_cali_delete_scheme_curve_fitting(handle));
+
+#elif ADC_CALI_SCHEME_LINE_FITTING_SUPPORTED
+    ESP_LOGI(TAG, "deregister %s calibration scheme", "Line Fitting");
+    ESP_ERROR_CHECK(adc_cali_delete_scheme_line_fitting(handle));
+#endif
+}
+
 void app_main(void)
 {
     // Initialize LED