ESP8266 Community Forum

- Thu Jul 02, 2015 1:43 am #22227 Just looking on ebay and came across this item



The EBAY link is
http://www.ebay.com/itm/ESP8266-201-Serial-Port-WIFI-Wireless-Transceive-Module-Send-Receive-IO-Lead-Out-/400931294505?

There is no detail about flashing the firmware but it is cheap at $3.85USD + Free Shipping.

I wonder if it is a flashable item?

Any thoughts?

- Thu Jul 02, 2015 2:02 am #22228 Have a look through the data on it but I am fairly sure it would be . Thats the idea Buy the chip and you use it just like an Arduino but its got WiFi ability too . 5 times the speed of Arduino and 16 times storage area

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Thu Jul 02, 2015 2:23 am #22234 This is one of the standard crappy ESP-201.
The 0-ohm resistor is populated the wrong way, so the U.FL connector is selected instead of the PCB antenna.
The U.FL connector is in most cases mounted the wrong way, so the antenna input is shorted to ground.
So you either have to move the resistor, or turn the connector by 180°.
And if you plan to use this on a breadboard, you should resolder the programming connector to the other side.