An in-depth look at the TP-Link Kasa HS210/HS-210 3-way light switch. Should you use 2 on a 3-way circuit? Can you use 4-way switches for more control points? If you only use one, should it be in the /"first/" box (line side)? Do they do current detection? What does /"pairing/" 2 switches actually do? What does a smart switch actually do on and with your home network? And how do three-way switches even work? To answer these questions, I tried to create this fairly comprehensive video.

Thanks to QTTechReview. Check out his 3-Way (https://www.youtube.com/watch?v=kwydife035I) and 4-Way (https://www.youtube.com/watch?v=cRohQMz8w_o) Kasa Smart Switch videos.

The official /"robo-lady/" installation guide from TP-Link can be found here: https://www.youtube.com/watch?v=ENQGH-uYk34

Thanks Geordie!

00:00:00 Introduction
00:14:53 Garage installation
00:22:32 Continuous Power Edge Enclosure
00:26:10 Mysterious tension on / "Dead/" traveler
00:27:54 Restore relay status on startup
00:31:01 Introduction to the TP-Link Smart Home Protocol
00:33:36 Controlling the Kasa with a PC running Python
00:36:11 More current sense evidence: switch knows /"Off/" from /"On/"
00:37:54 Setup #2: More Mysterious Tension / Rebooting the Kasa
00:41:45 WiFi packet sniffing Kasa with Wireshark
00:44:07 Google Home to Kasa interaction
00:46:00 Device list vs. update rates in detail view
00:50:43 Kasa powers the global internet: why and how
00:53:15 Setup #3: Final experiments
00:55:27 Pairing with two switches / Pairing is a piece of cake!
00:58:15 Two configured Kasa 3-way switches
01:01:27 Summary of results and conclusions

#tplink #kasa

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