# XBee stop to comunicate after baud rate change

**URL:** <https://forums.digi.com/t/xbee-stop-to-comunicate-after-baud-rate-change/11519>\
**Category:** ZNet 2.5\
**Tags:** s2, baud, rate, api, xbee\
**Created:** [May 23, 2013, 8:01am UTC](https://forums.digi.com/t/xbee-stop-to-comunicate-after-baud-rate-change/11519 "2013-05-23T08:01:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![puffosauro](https://avatars.discourse-cdn.com/v4/letter/p/9dc877/32.png) [@puffosauro](https://forums.digi.com/u/puffosauro)\
**Post date:** [May 23, 2013, 8:01am UTC](https://forums.digi.com/t/xbee-stop-to-comunicate-after-baud-rate-change/11519/1 "2013-05-23T08:01:34Z")

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I hope someone can help me.

I’m using two XBee Series 2 with this configuration:

1. ZNET 2.5 COORDINATOR API (1147)
2. ZNET 2.5 ROUTER/END DEVICE AT (1247)

The first XBee is connected to an Arduino board and I’m able to switch a remote pin.

All works perfectly with the default baud rate of 9600, but now I need to change the baud rate to 4800, because I have to send also some GPS serial data.

I have changed the baud rate to 4800 in both XBee with X-CTU, and I edited my arduino code setting:

```auto

#include 

XBee xbee = XBee();

void setup()
{
   Serial.begin(4800);
   xbee.begin(4800);
}

```

Unfortunately now the the XBee can’t comunicate each other, the assoc led blink and the RSSI led remain off, and the remote pin don’t switch.

What I have to do to make them work with baud rate of 4800?

---

<div class="post-metadata">

**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [May 13, 2014, 11:59am UTC](https://forums.digi.com/t/xbee-stop-to-comunicate-after-baud-rate-change/11519/2 "2014-05-13T11:59:49Z")

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Try upgrading the firmware on your radios to the supported ZB function sets and firmware versions. The Znet 2.5 code is now 3 to 4 years old and no longer supported by anyone.