JSON command

By using http://brewpiless.local/testcmd.htm, you can control BrewPi core directly. For example, to set temperature to Fahrenheit. Open the testcm.htm page, and enter the following string, and send.

j{"tempFormat":"F"}

You can set multiple parameters in one command. The command after j is in formal JSON format. Please include the double quote(") for key and string value.

Key	Meaning	Note
tempFormat	Temperature format	F for Fahrenheit, C for Celius
tempSetMin	Minimum setting temperature
tempSetMax	Maximum setting Temperature
pidMax	PID Max
Kp	Kp parameters of PID
Ki	Ki parameters of PID
Kd	Kd parameters of PID
iMaxErr	iMaxError
idleRangeH	idleRangeHigh
idleRangeL	idleRangeLow
heatTargetH	heatingTargetUpper
heatTargetL	heatingTargetLower
coolTargetH	coolingTargetUpper
coolTargetL	coolingTargetLower
maxHeatTimeForEst	maxHeatTimeForEstimate
maxCoolTimeForEst	maxCoolTimeForEstimate
fridgeFastFilt	fridgeFastFilter
fridgeSlowFilt	fridgeSlowFilter
fridgeSlopeFilt	fridgeSlopeFilter
beerFastFilt	beerFastFilter
beerSlowFilt	beerSlowFilter
beerSlopeFilt	beerSlopeFilter
lah	lightAsHeater
hs	rotaryHalfSteps
heatEst	heatEstimator
coolEst	coolEstimator
minCoolTime	Minimum cooling time	*1
minCoolIdleTime	Minimum idle time before cooling	*1
minHeatTime	Minimum heating time	*1
minHeatIdleTime	Minimum idle time before heating	*1
deadTime	Minimum idle time between switch of heating and cooling.	*1

*1: Available if SettableMinimumCoolTime option is set to true, or EnableGlycol is set to true. After v2.4, it is enabled by default.

To view current temperature control setting, issue a single character

c

and send.

Sensor Calibration

The command to set sensor calibration is

U{i:0,j:0.36}

where 0 is the Device Slot that is assigned to the sensor during device setup, and 0.36 is the adjustment to the sensor.