title: Polling for Square Device status
body: <p>What's the possibility to know whether the contactless device is turned on via the Square API? Is there a polling mode that the device will respond if it is in idle and waiting for a transaction? </p>
  
  <p>If the device gone to sleep mode, what's the possibility to turn it on pragmatically?</p>
  
  <p>Also will the device turn on automatically when it is connected via the USB cable to a USB port?</p>
  
  <p>Thanks,</p>