In case you need a cheap and compact ESP8266 board with integrated USB to TTL debug interface, a photo resistor, and/or some buttons, a white brand board based on ESP-12F could be interesting.

“Witty cloud” development board specifications:
ESP-12F module with Espressif ESP8266EX SoC
Connectivity – WiFi 802.11 b/g/n
2x 8-pin headers with GPIOs, VCC, GND, Reset, ADC, and UART
USB – 2x micro USB port (one for power, one for debugging )
Misc – Photo resistor, RGB LED, three buttons for power, reset and firmware upgrade