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LoRa Gateway User Manual ---Update:2017-02-21      33 / 44 
 
9.2  Downstream: Get data from IoT Server and send to LoRa node 
9.2.1  Set up Hardware   
Set up the hardware as below, the LoRa Gateway will get command from IoT Server and then 
send the command to LoRa node, the node control the relay state according to the receive 
command.   
 
 
9.2.2  Set up talkback command 
Create a talkback command in ThingSpeak Apps. We can then find the talkback ID and talkback 
API key here: