ESP8266 Community Forum

This thing is a UART-to-wireless module. Therefore it's only a matter of time before someone sticks it on an XBee-compatible footprint.

Bonus: XBees have always been 3.3v, so there are lots of bridge adapters already in the market that handle logic level conversion. You could slap one onto an Arduino Fio, for instance, and have it Just Work(tm).

Request: If anyone here does this, could you *also* preserve some breadboard-friendly 2.54mm pins for the basic signals? Thanks!

Hummmm that's a good idea!!
I actually have a few old Xbee shields and FTDI USB breakouts..

It would be very simple to make a breakout board for the ESP-03 modules (or similar ones) that has the footprint of an Xbee...
I might give it a try! I've actually made a simple breadboard breakout board the other day, but this would be fun to do...