ST=FAIL?!
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 Compiled the humidity sketch. Looking at the output of serial monitor i see messages as send: 11-11-0-0 s=0,c=1,t=1,pt=7,l=5,sg=0,st=fail:53.1 H: 53.10So everything seems working except the string st=fail:53.1 As i understood from the API - it's the submessage type which gives the fail? What might have went wrong? 
 
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 Hi @moskovskiy82! st=fail" means the receiving node or gateway has problems sending ack back to the sending node. 
 Try adding a capacitor to the receiving radio, change powersource, move reciever/sender closer to eachother or build a repeater.
 
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 The only thing i have changed from the stock sketch is this as i'm using openhab and wifi mqtt client gateway gw.begin(NULL,11,true);
 
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 @moskovskiy82 
 It has probably nothing with the sketch to do - its hardware (Range/Power issues).
 If you think its a software issue, try clearing the eeprom http://www.mysensors.org/build/debug#clearing-eeprom and reupload your sketch.
 
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 You know that your node is also acting as a repeater? If that's not what you want, you need to do gw.begin(NULL,11,false);
 
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 i Know it's in repeater mode. 
 I couldn't find any downsides in turning it on except that the sleep function had to be disabled. It still acts as a sensor node
 
 
			
		
 
					
				
