kasa's Introduction

kasa

A library and command line utility for interacting with tp-link Kasa devices on your local network.

Command Line

Full kasautil options:

$ kasautil
NAME:
   kasautil - Control Kasa devices on the local network

USAGE:
   kasautil [global options] command [command options] [arguments...]

COMMANDS:
   list, ls  List kasa devices on the local network.
   off       Set a kasa device to "off"
   on        Set a kasa device to "on"
   help, h   Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --help, -h  show help (default: false)

You may discover Kasa devices locally with the list command of kasautil.

$ kasautil list
Address          Alias             State
10.24.6.14:9999  ADSL Modem        On
10.23.6.15:9999  Living Room Lamp  On

The only currently-supported control function is setting the relay state on supported devices. To do this, provide the Kasa device's address to the on or off commands of kasautil.

$ kasautil off 10.24.6.14:9999
$ kasautil list
Address          Alias             State
10.24.6.14:9999  ADSL Modem        Off
10.23.6.15:9999  Living Room Lamp  On

Broadcast Issues

Discovery relies on UDP packets sent to a broadcast address. This can fail when the host on which kasautil has many network interfaces or multiple network addresses on a single interface. This is known to happen on Linux with a single interface on multiple VLANs, for example.

In this case, you have two options:

Specify a local address using -L / --local on the correct network from which to send the Kasa request
Specify a device or broadcast address using -d / --device / --discover on the correct network to which the Kasa request should be sent

$ kasautil list -L 10.24.6.15:54321
Address          Alias             State
10.24.6.14:9999  ADSL Modem        On
10.23.6.15:9999  Living Room Lamp  On
$ kasautil list -d 10.24.6.255:9999
Address          Alias             State
10.24.6.14:9999  ADSL Modem        On
10.23.6.15:9999  Living Room Lamp  On

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