ESP-IDF Robot Controls

ESP-IDF_Robot/main/blink_example_main.c

@@ -802,6 +802,35 @@ void app_main(void)
         /* Toggle the LED state */
         gpio_set_level(BLINK_GPIO, s_led_state);
         s_led_state = !s_led_state;
+
+
+
+        // ADC
+        adc_ret = adc_continuous_read(handle, result, EXAMPLE_READ_LEN, &ret_num, 0);
+            if (ret == ESP_OK) {
+                ESP_LOGI("TASK", "ret is %x, ret_num is %"PRIu32" bytes", ret, ret_num);
+                for (int i = 0; i < ret_num; i += SOC_ADC_DIGI_RESULT_BYTES) {
+                    adc_digi_output_data_t *p = (adc_digi_output_data_t*)&result[i];
+                    uint32_t chan_num = EXAMPLE_ADC_GET_CHANNEL(p);
+                    uint32_t data = EXAMPLE_ADC_GET_DATA(p);
+                    /* Check the channel number validation, the data is invalid if the channel num exceed the maximum channel */
+                    if (chan_num < SOC_ADC_CHANNEL_NUM(EXAMPLE_ADC_UNIT)) {
+                        ESP_LOGI(TAG, "Unit: %s, Channel: %"PRIu32", Value: %"PRIx32, unit, chan_num, data);
+                    } else {
+                        ESP_LOGW(TAG, "Invalid data [%s_%"PRIu32"_%"PRIx32"]", unit, chan_num, data);
+                    }
+                }
+                /**
+                 * Because printing is slow, so every time you call `ulTaskNotifyTake`, it will immediately return.
+                 * To avoid a task watchdog timeout, add a delay here. When you replace the way you process the data,
+                 * usually you don't need this delay (as this task will block for a while).
+                 */
+                vTaskDelay(1);
+            } else if (ret == ESP_ERR_TIMEOUT) {
+                //We try to read `EXAMPLE_READ_LEN` until API returns timeout, which means there's no available data
+                break;
+            }
+
         vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);
     }
 }