Added sample UART rx code

src/wifidmm.c

@@ -1,3 +1,5 @@
+#include <stdint.h>
+#include <unistd.h>
 #include <string.h>
 
 #include <espressif/esp_common.h>
@@ -92,8 +94,22 @@ void NetworkConnectionTask(void *p) {
  * discarding invalid packets
  */
 void SerialDataCollectionTask(void *p) {
-    for (;;)
-        vTaskDelay(TIME_MS(5000));
+    char c;
+    char buffer[50];
+    int bufpos = 0;
+
+    for (;;) {
+        if (read(0, (void *)&c, 1)) {
+            printf("%c", c);
+            if (bufpos < sizeof(buffer) / sizeof(buffer[0]) - 1)
+                buffer[bufpos++] = c;
+            if (c == '\n') {
+                buffer[bufpos] = '\0';
+                /* TODO: Send the frame to the shipping task */
+                bufpos = 0;
+            }
+        }
+    }
 }
 
 /* This task sends parsed measurements to the network */