FEIT dimmers

Feit Electrics dimmers

https://faceitsalon.com/wiring-diagram-for-a-feit-wi-fi-smart-dimmer-switch-collection/

For me these are advantageous when installed in 3 way circuits and my house has a lot of those. You can put a dimmer at each end or a regular switch at the far end. Now that they are down to $10 and Decora 3-way switches are $4 and 4-way are $15 it's not really worth replacing a toggle with a dumb Decora in some places, like the dining room and stairs.

When replacing a switched 3-way set up you can use one each, dumb switch and smart dimmer. You can also put a dimmer at each end, you put each switch on line power and use the traveler to let them talk to each other.

You can extend this to 4-way circuits, here is a picture someone posted: https://imgur.com/GIZwCqs This actually causes less confusion in my brain than conventional multipole switches. Sad perhaps? I think I might be able to replace the 4-way with a 4-way and have one dimmmer + 2 switches.

Reflashing these can be done by removing the WiFi chip or by attaching wires and cutting a trace. I tried removal and failed.

Notes on removing the ESP from the dimmer are here: https://community.smartthings.com/t/costco-cheap-feit-smart-dimmer-wifi/208142 Also notes you can replace the ESP board with an ESP-01 if you want.

Look for "Technowizard" for information on how to cut a trace on the board. https://community.home-assistant.io/t/costco-feit-tuya-based-wifi-dimmer-step-by-step-guide-newbie-friendly/284865/12

https://community.home-assistant.io/t/costco-feit-smart-dimmer-tuya-convert-tasmota/151390/5

Currently they are deployed in

• bathroom,
• kitchen island,
• breakfast area aka "nook",
• living room,
• dining room.

I just replaced one in guest bathroom with a Maestro motion sensor switch, so now it's a spare for now. I pulled it apart to learn how to flash it and I think I fried the CPU.

I bought 2 more today because they are on sale at Costco now for 2 for $20. 3/13/22 Whee! More hardware to break!

To be installed, possibly

• upper hallway (3 switches) (I would prefer 2 switches and one dimmer here)
• stairs (2 switches replaced with 2 dimmers)
• 2nd switch in dining room

TWY2S pinout on the front, left to right

RST
A0
I3
D4
D5

on the back, left to right

3V3
GND
TX
RX
12
14

There are some other marked pads (test points) not on the edge including

I0
IO2
RST
GND

Tasmota - https://github.com/blakadder/templates/issues/402 says it's unstable.

A set of components, https://github.com/nuttytree/ESPHome-Devices including Feit dimmers https://github.com/nuttytree/ESPHome-Devices/tree/master/components/tuya_light_plus

Basic 'normal' set up

1. Register a Tuya account and log in.
2. Add the Tuya integration to HA.
3. Install the Tuya "Smart Life" app and launch it. (There is also a "TuyaSmart" app, both are supported in HA, I don't know the difference.)
4. Power up the new dimmer.
5. Configure it with Smart Life.
6. Now it will just pop up in HA and you can treat it like any other HA device.