Minimize contract, add ADC read and send its data to coonsole

esp32/main/sender_task.cpp

@@ -0,0 +1,48 @@
+#include "sender_task.h"
+#include "sampler_task.h"
+#include "ringbuf.h"
+
+#include <stdio.h>
+#include <time.h>
+
+extern "C" {
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+}
+
+static uint32_t msg_id = 1;
+
+static void sender_task(void *arg) {
+    int data[RINGBUF_SIZE];
+
+    while (1) {
+        vTaskDelay(pdMS_TO_TICKS(1000)); // 1 Гц
+
+        ringbuf_t *rb = sampler_get_buffer();
+        ringbuf_copy(rb, data);
+
+        time_t now = time(NULL);
+
+        // формируем JSON
+        printf("{\"v\":1,\"t\":\"t\",\"id\":%lu,\"ts\":%lld,\"d\":1,\"p\":{",
+       (unsigned long)msg_id++, (long long)now);
+        printf("\"m\":\"v\",\"s\":\"adc35\",\"u\":\"raw\",\"v\":[");
+
+        for (int i = 0; i < RINGBUF_SIZE; i++) {
+            printf("[%d,%d]%s", i, data[i], (i < RINGBUF_SIZE - 1) ? "," : "");
+        }
+
+        printf("]}}\n");
+    }
+}
+
+void sender_task_start() {
+    xTaskCreate(
+        sender_task,
+        "sender",
+        4096,
+        NULL,
+        5,
+        NULL
+    );
+}