# HELP!! XBee Series 1 GPIO Star-Network Setup!

**URL:** <https://forums.digi.com/t/help-xbee-series-1-gpio-star-network-setup/11582>\
**Category:** XBee - DigiMesh\
**Tags:** s1, output, input, digimesh, xbee\
**Created:** [June 11, 2013, 4:56pm UTC](https://forums.digi.com/t/help-xbee-series-1-gpio-star-network-setup/11582 "2013-06-11T16:56:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lucidgold](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lucidgold](https://forums.digi.com/u/lucidgold)\
**Post date:** [June 11, 2013, 4:56pm UTC](https://forums.digi.com/t/help-xbee-series-1-gpio-star-network-setup/11582/1 "2013-06-11T16:56:59Z")

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For what I want to accomplish I believe a Star-Network topology is sufficient. From my readings, I should be able to accomplish such topology via XBee S1. At the moment, the coordinator is receiving API packets every 20ms, however, no matter how I press the buttons connected to End Device 1, the incoming API packets stay the same. So I am not sure where the problem is. Are my configuration settings off? Did I miss something?

![](http://4.bp.blogspot.com/-FEekTaYDyCI/UbjQxQyYhdI/AAAAAAAAADE/6kbgYc3j8Zs/s1600/XBeeStarNetwork2.png)

I am using Series 1 XBees, modem type XB24, function set: XBEE 802.15.4 and version 10EC.

Please advise. Any help is much appreciated!