Help files for each version of Fusdata:

Fusdata ver 1.1.x English HELP page — Página de AYUDA en español — ENG.pdf — ESP.pdf

Other documents:

P01 – First project MQTT with Fusdata and Esp-01 – Firmware for Esp-01
P01 – First project MQTT with Fusdata and Esp-01 – ENG/ESP.pdf