ESP8266 Community Forum

- Tue Apr 28, 2015 5:15 am #15897

which one is ok ?

I guess the esp-12 is the most popular, so you'll find more information on this one:
http://www.aliexpress.com/store/product ... 63708.html
and
http://www.aliexpress.com/item/Trustmar ... 25280.html

Or you could buy this:
http://www.aliexpress.com/item/Note-tha ... 06593.html
Just power it with your ATX PS, and wire the relay boards.
You might have to desolder and remove the LEDs (or cut their traces) so they don't eat power from the relay board.

http://www.aliexpress.com/item/Single-chip-4-channel-relay-expansion-Board-supported-the-AVR-51-PIC-4-channel-relay-module/821672110.html

That might work, but you'd better ask the seller if it can be operated with a 3.3V microcontroller instead of a 5V one.

EDIT: You will also need a USB to UART converter, so in case you don't already have one, this is the model I use:
http://www.ebay.co.uk/itm/360912068999

- Tue Apr 28, 2015 8:04 am #15908 your idea around this board :
http://www.aliexpress.com/item/Note-tha ... 06593.html
is awesome

- Tue Apr 28, 2015 10:36 am #15919 I like that cheap board, and thanks to MacDog, a schematic and a layout picture are now available:
viewtopic.php?p=15603#p15603
And I also like the idea of controlling an ATX PS. I just have to find what I'd need to switch on when I'm not home :/ What will you use it for?

- Sun May 03, 2015 1:16 am #16329 well I want to replicate this build :
http://www.instructables.com/id/Arduino ... /?ALLSTEPS
for a ceiling lighting fixture
but i dont want meters of wires down just for a switch
that's the reason i want to go wireless