ESP8266 Community Forum

- Sat Feb 04, 2017 11:59 pm #62057 I wish to put my ESP8266 + Relay + Transformer ,into light switch in order to control it remotely.

But the issue is single-pole light switch.

1) I have to always supply to Transformer 120V
2) When relay disconnect the light still will be on (flowing through transformer)

Any idea how to resolve it?

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- Sun Feb 05, 2017 1:59 am #62058 What kind of load? Incandescent or LED light, or something else? Where does the WiFi switch get it's power from? Describe the situation better and I can give you a better answer. But until then I would answer with the following.

I would not use a relay/transformer to control the lamp current. I would use a triac. This assumes a Incandescent bulb.

- Sun Feb 05, 2017 3:39 am #62063 everything built into it transformer has input and output very easy to use. Check This Out

Being that it is an esp you can also flash it there is a how to in the mmiscool basic forums or you can use the already simple interface and instructions but I wanted remote control and integration so I flashed it with espbasic I have two of them running mounted to my pedestal fans that oscillate in the summer circulating the air in my home.

Helpful? Donate To help support Mike http://www.esp8266basic.com click the donate button lets keep this project going and hope we can get the ESP32 in the mix. BEGINNERS GUIDE HERE http://www.esp8266.com/viewtopic.php?f=40&t=6732

Where I buy my ESP8266 boards from... (Banggood)

- Sun Feb 05, 2017 7:48 am #62073 Thank you Rudy,

What kind of load?

Led bulb light, for example:

Where does the WiFi switch get it's power from?

WiFi controller (NodeMCU) and Relay will get power from little Transformer:

Describe the situation better and I can give you a better answer.

I have been able to control NodeMCU by Google Home device... so I wanted to control my kitchen light with: NodeMCU, Transformer, Relay

forlotto: Your device is not suitable for single-pole.