nodemcu/nodemcu-firmware 1.5.4.1-master_20160802

on GitHub

• SDK 1.5.4.1, pay attention to the flashing instructions for upgrading
• upgrading SPIFFS
• a number of bug fixes
• improvements to WS2812
• new modules: Switec, PCM, HMC5883L, L3G4200D, ADXL345

For the complete list check the 1.5.4.1 milestone.