# xbee s1 with sparkfun regulated board not sending data from pixhawk

**URL:** <https://forums.digi.com/t/xbee-s1-with-sparkfun-regulated-board-not-sending-data-from-pixhawk/15290>\
**Category:** XBee - 802.15.4\
**Tags:** s1, regulated, pixhawk, xbee\
**Created:** [August 19, 2015, 8:56am UTC](https://forums.digi.com/t/xbee-s1-with-sparkfun-regulated-board-not-sending-data-from-pixhawk/15290 "2015-08-19T08:56:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![itayguy](https://avatars.discourse-cdn.com/v4/letter/i/91b2a8/32.png) [@itayguy](https://forums.digi.com/u/itayguy)\
**Post date:** [August 19, 2015, 8:56am UTC](https://forums.digi.com/t/xbee-s1-with-sparkfun-regulated-board-not-sending-data-from-pixhawk/15290/1 "2015-08-19T08:56:57Z")

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I am using Xbee s1 , with SparkFun XBee Explorer Regulated,  
I tested the peer to peer communication between two Xbees , mounted on usb explorer board, and they work just fine tx and rx both way.

then I tested one with 3,3 v i\o fdti cable connected to the xbee on the regulated board, and it works just fine (communicate with the one on the usb explorer board)

then I connected the ftdi directly to the pixhawk uart , and tested that I get data from it. ( again , works just fine)

but when I switch between the ftdi cable to the xbee on the regulated board, it sends nothing !!!  
I was able to verify that the pixhawk do revive the data coming from the Xbee on the usb explorer board.

so what can be the problem???

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<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:** [August 24, 2015, 3:57pm UTC](https://forums.digi.com/t/xbee-s1-with-sparkfun-regulated-board-not-sending-data-from-pixhawk/15290/2 "2015-08-24T15:57:41Z")

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What baud rate does your device run at?

Have you set the XBee to match the baud rate of the device?

Does the Pixhawk operate at 3V or 5V?