From LedHed's Wiki
Contents
Overview
Some useful command line options for devices running Tasmota firmware
Console
Open the device's webpage, and click the 'Console' button. At the console enter your commands. Commands are automatically saved and should survive a reboot.
MQTT
https://github.com/arendst/Tasmota/wiki/Commands#mqtt
Update Interval
To set the update interval / frequency at which the devices sends MQTT messages:
TelePeriod 30
0 = disable telemetry messages
1 = reset telemetry period to firmware default (TELE_PERIOD)
10..3600 = set telemetry period in seconds (default = 300)
SetOptions
https://github.com/arendst/Tasmota/wiki/commands#setoption-overview
Temperature Units
To set temperature units to Fahrenheit:
SetOption8 1