Cellar-Fan-Control

Functionality

• humidity-controlled cellar fan to dry out a cellar
• only vents the cellar if the inside dew point is higher than the putside dew point
• switches fans that are connected to WiFi plugs that run TASMOTA
• runs a website with live "view" of parameters and settings
• uses ThingSpeak for logging

Hardware

• 1x ESP8266 WiFi microcontroller
• 2x BOSCH BME280 humidity and temperature sensor (pressure is not used)
• 2x TASMOTA-enabled WiFi socket (e.g., SONOFF S26)
• 2x fan (e.g., EBM-PAPST 4650N)