Add XBeeWithCallbacks::sendAndWait()

This just combines send() and waitForStatus() in one convenient call.

Author: matthijskooijman

XBee.h

@@ -887,6 +887,18 @@ class XBeeWithCallbacks : public XBee {
 	 */
 	void loop();
 
+	/**
+	 * Sends a XBeeRequest (TX packet) out the serial port, and wait
+	 * for a status response API frame (up until the given timeout).
+	 * Essentially this just calls send() and waitForStatus().
+	 * See waitForStatus for the meaning of the return value and
+	 * more details.
+	 */
+	uint8_t sendAndWait(XBeeRequest &request, uint16_t timeout) {
+		send(request);
+		return waitForStatus(request.getFrameId(), timeout);
+	}
+
 	/**
 	 * Wait for a status API response with the given frameId and
 	 * return the status from the packet (for ZB_TX_STATUS_RESPONSE,