hs100

A tool for using TP-Link HS100/HS103/HS105/HS110 wi-fi smart plugs. You can turn them on and off, reboot them, and so on. You can even set them up without using TP-Link's app (see Initial Setup).

Tested to work on Linux, OSX, IRIX, and Windows under WSL.

Loosely based on pyHS100 and research from softScheck.

Usage

hs100 <ip> <command>

Commands:

• associate <ssid> <key> <key_type>: set wifi AP to connect to. get your key_type by doing a scan
• emeter: realtime power consumption (only works with HS110)
• factory-reset: reset the plug to factory settings
• off: turn the power off
• on: turn the power on
• reboot: reboot the plug
• scan: scan for nearby wifi APs (probably only 2.4 GHz ones)
• set_server <url>: set cloud server to <url> instead of TP-Link's
• Alternatively, you can supply a JSON string to be sent directly to the device. Note that the JSON string must be quoted, like so: hs100 <ip> '{"system":{"set_relay_state":{"state":1}}}'

Initial Setup

According to TP-Link, initial setup of the plugs is performed by installing their "Kasa" app on your smartphone (free account required), and using its setup tool. This sucks and I do not recommend it. Instead, follow these alternative instructions.

You want to get the plug into the "blinking amber and blue" state, in which it will spin up its own AP and await commands. If you have a brand new plug, then it should do this automatically. Otherwise, hold down one of the buttons (depending on your model) for about 5 seconds, until its light blinks amber and blue.

You should see a wifi AP called "TP-Link_Smart Plug_XXXX" or similar. Connect to this AP. You will be given an IP of 192.168.0.100, with the plug at 192.168.0.1.

Issue the following commands to the plug:

• Factory reset the plug to get rid of any settings from a previous owner: hs100 192.168.0.1 factory-reset. You will be disconnected from its wifi AP. Once the factory reset is done (usually a few seconds), reconnect to the plug's AP.
• Disable cloud nonsense by setting a bogus server URL: hs100 192.168.0.1 set_server localhost
• Scan for your wifi AP using hs100 192.168.0.1 scan. Find your AP in the list and note its key_type; you will need this to associate.
• Associate with your AP using hs100 192.168.0.1 associate <ssid> <password> <key_type> . Your key_type is a number that indicates the kind of wifi security that your AP is using. You can find it by doing a wifi scan (see previous step).

If the light turns solid amber, then it was unable to associate-- factory reset the plug and try again. Otherwise, the light on your plug will change first to blinking blue, then to solid blue indicating that it has successfully connected to your AP.

Build

Ubuntu instructions You will need build-essential installed. Then run make. This will produce a hs100 binary which you can use. E.g. ./hs100 192.168.0.1 off

Todo

• better error checking
• plug discovery

This program is very basic. Patches welcome!