Question

I am installing some outdoor wired speakers on my shop for music. Is there a way to also utilize them for an audible alarm? Smartthings hub is what I have. Thanks

Answer 1

Echo Dot has a headphone jack to use external speakers. Alexa Routines can notify you by voice when a SmartThings contact sensor is opened/closed or a motion sensor detects motion.  

Comments

Or is there a "step down" inside this relay?  

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I thought you had it. :) Guess not.  No, it does NOT let any voltage through. Lets assume Side A of the relay has pins 1 and 2 Side B of the relay has pins 1 and 2  You connect side A pin 1 to receiver ground. Side A pin 2 to receiver output 1 (12v)  You connect side B pin 1 to konnected + voltage Connect side B pin 2 to konnected sensor input  When your receiver applies 12v to side A pin 2, it completes a circuit, and voltage "flows" between side A pins. This energizes an electromagnet. That electromagnet "connects" the two side B pins, making it 100% identical to you running a wire from the konnected voltage pin to the konnected sensor input pin. The konnected board now senses input on the input pin and "closes the sensor"  I recommend searching youtube for "how a relay works"

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(I don't know if the konnected wants voltage (pull up) or ground (pull down) to detect "sensor closing". if it wants pull down, you just connect konnected ground to side B pin 1)

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@unclothe1851 contact sensors are ground no voltage

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Cool. Good to know!  

Answer 2

Becareful using music at a shop bud. There are ( or was ) people on the streets listening for shops playing copyright music or even free to air radio to a public space. As you need a license to so that allegedly. I was a shop owner and never got caught , but it can and does happen