Problems with PING device_tracker component

Setting this up now - didn’t even realize this component was added in 0.36!
I’ll let you know what I find.

EDIT:
Just set up using the following:

- platform: ping
    hosts:
      acurite: 192.168.1.250

And I got a device_tracker.acurite sensor in my dev states panel now. Also see this line in known_devices.yaml

acurite:
  hide_if_away: false
  mac:
  name: acurite
  picture:
  track: true
  vendor:

I think your formatting may be incorrect but I am not sure why that didn’t generate an error.

Try this:

- platform: ping
    hosts:
      madison: 192.168.1.117
      michael: 192.168.1.118
      joanne: 192.168.1.119