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+====== SDK Script serial-readwrite.are ======
+<code c serial-readwrite.are>
+/* DESC: This script will write to and read from the serial port.
+ * Copyright (C) 2012 NetModule AG, Switzerland
+ */
+DEV = "SERIAL1";
+/* check serial port config */
+st = nb_config_get("serial.0.status");
+if (st != "2") {
+    printf("Serial port is not enabled for us\n");
+    exit(1);
+}
+/* set attributes first */
+ret = nb_serial_setattr(DEV, 115200, 8, 1, 0, 0);
+if (ret != 0) {
+    printf("Could not set serial attributes\n");
+    exit(1);
+}
+if (nb_serial_write(DEV, "hello world\n") == -1) {
+    printf("Could not write to serial port\n");
+}
+while (1) {
+    msg = nb_serial_read(DEV);
+    if (msg) {
+        printf("read: %s\n", msg);
+    } else {
+        sleep(1);
+    }
+}
+exit(0);
+</code>