This blueprint monitors a group of network devices and sends a notification message to a specified mobile app if and when a device from the group loses network connectivity.
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The devices to be monitored are organised in a group, e.g. like this (in groups.yaml):
servers: name: server connectivity all: true entities: - binary_sensor.abc - binary_sensor.xyz
In turn, these binary sensors are configured to use the “ping” platform (in configuration.yaml):
# Binary sensors binary_sensor: - platform: ping name: abc host: aa.bb.cc.dd - platform: ping name: xyz host: ww.xx.yy.zz
Replace “abc”, “xyz” and “aa.bb.cc.dd”, “ww.xx.yy.zz”, respectively, with the names and hostnames/IP addresses of your network devices to be monitored.