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LoRa Gateway User Manual ---Update:2017-11-07 48 / 67
9.4.1 Create Talkback command and try RESTful API call in web
To do the downlink test we need to first create a talkback command in ThingSpeak. As below,
From this page, we can get the tallback API key and set the command to be sent to the LoRa End
Device.
Then we add talkback command and click Save TalkBack. The API for how to call this will appear
in the right, as below: