![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEwn8yNs_YozJsKRKctlhTSrTO0TEiqReKPZ3PZpxRVd_t5HTIZXrfmCTcfD5bwNgbzAdLneWTzcgVSImoctk_YxQRVvb14u1kqi9-TtkfFjTnuVZfs0EjprzIeR9AZD_qDsX0N70SXE2B/s1600/IMG_20150218_202014.jpg)
Thanks to the author of this for the instructions. Basically just put the FTDI adapter in 3.3v mode and get breadboarding with the magic pinouts described on the esptool github page and flashed the latest firmware binary blob. Reboot and I get a Lua prompt via minicom. Worked flawlessly.
Next up, DS18B20 temperature sensor, an I2C humidity sensor and some soldering. :)