# Xbee + mbed microcontroller

**URL:** <https://forums.digi.com/t/xbee-mbed-microcontroller/21362>\
**Category:** Device Manager\
**Tags:** embedded, xctu, xbee3\
**Created:** [May 13, 2020, 8:36am UTC](https://forums.digi.com/t/xbee-mbed-microcontroller/21362 "2020-05-13T08:36:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![donisr](https://avatars.discourse-cdn.com/v4/letter/d/a6a055/32.png) [@donisr](https://forums.digi.com/u/donisr)\
**Post date:** [May 13, 2020, 8:36am UTC](https://forums.digi.com/t/xbee-mbed-microcontroller/21362/1 "2020-05-13T08:36:15Z")

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I am currently working on connecting 2 xbee3 modules via XCTU and then try to toggle their pin status by generating and sending frames. But nothing seems to be happening. I am using API modes on both modules, and both are END DEVICES. I have tried sending frames in different types but since I am a newbie its hard for me to figure out what I am doing wrong.

What I originally wanted to connect a button to one of the xbee modules and connect LED on another module. But since that did not work, I tried “frame generator” section.

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**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, 2020, 8:40am UTC](https://forums.digi.com/t/xbee-mbed-microcontroller/21362/2 "2020-05-13T08:40:19Z")

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Donisr,

What API frames are you sending and what address are you putting in for the destination?

Digi Support