# how can i make coordinator sends messages to all end devices ?

**URL:** <https://forums.digi.com/t/how-can-i-make-coordinator-sends-messages-to-all-end-devices/16465>\
**Category:** XBee - 802.15.4\
**Tags:** xbee-pro-digimesh2\
**Created:** [March 20, 2016, 9:55pm UTC](https://forums.digi.com/t/how-can-i-make-coordinator-sends-messages-to-all-end-devices/16465 "2016-03-20T21:55:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ama\_88](https://avatars.discourse-cdn.com/v4/letter/a/eada6e/32.png) [@ama\_88](https://forums.digi.com/u/ama_88)\
**Post date:** [March 20, 2016, 9:55pm UTC](https://forums.digi.com/t/how-can-i-make-coordinator-sends-messages-to-all-end-devices/16465/1 "2016-03-20T21:55:31Z")

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dear all,  
i am using xbee s2b with api mode i put the 64bit destination address to 0000FFFF in order to broadcast, however the coordinator LEDs did not flash, means no data has been transmitted.  
how can i make coordinator talk to the end devices?  
thanks,

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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:** [March 21, 2016, 8:41am UTC](https://forums.digi.com/t/how-can-i-make-coordinator-sends-messages-to-all-end-devices/16465/2 "2016-03-21T08:41:24Z")

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What is the full API frame you are sending?