Open-source firmware for TJ-56-654 ESP8266 weather clock (ESP-01S + OLED). Fixes WiFi password leak in original firmware. NTP time, Open-Meteo weather, OTA updates, web UI.
aliexpress
arduino
esp-01s
esp8266
home-assistant
iot
ntp
oled-display
open-meteo
ota-updates
reverse-engineering
security
tj-56-654
weather-station
wifi-clock
Updated 2026-09-27 13:42:06 +00:00