# indoor positioning network

**URL:** <https://forums.digi.com/t/indoor-positioning-network/20733>\
**Category:** XBee - DigiMesh\
**Tags:** rssi, xbee-\
**Created:** [September 5, 2019, 2:40pm UTC](https://forums.digi.com/t/indoor-positioning-network/20733 "2019-09-05T14:40:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![babsy](https://avatars.discourse-cdn.com/v4/letter/b/a87d85/32.png) [@babsy](https://forums.digi.com/u/babsy)\
**Post date:** [September 5, 2019, 2:40pm UTC](https://forums.digi.com/t/indoor-positioning-network/20733/1 "2019-09-05T14:40:14Z")

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So i recently bought 4 xbees s2c (3 of them attached to an arduino uno board),  
I want to have 3 fixed xbee nodes to do triangulation on the 4th mobile xbee to determine its position using RSSI in a small indoor room (approx 10mx4m).

I am a bit confused on the CE coordinator/end device mode on XCTU, I dont know which ones to have as a router/ coordinator or end device?  
Also is there any way to use the range test on XCTU for more than 2 xbees?

Thanks.