SensorsConfiguration

Sensors Configuration

Terminal

Command	description
Common
magnitudes	Lists all sensor magnitudes
I2C
i2c.scan	Lists available i2c devices
i2c.clear	Recovers i2c bus from failure
PZEM004T(v3)
pz.address <address>	Set address string (use pzemAddress setting to permanently set it)
pz.reset <index>	Reset energy total for device
pz.value <index>	Show sensor values (only PZEM004T v1)

Common

Configuration key	Build flag	Description
snsRead	Sensor read interval in seconds	A positive number greater than 2. Defaults to 6
snsReport	Sensor report every N reads	A positive number greater than 0. Defaults to 10 (i.e. by default, reports happen every minute)

I2C

Configuration key	Description
i2cSCL	SCL pin, defaults to 5
i2cSDA	SDA pin, defaults to 4
i2cCST	I2C Clock Stretch Time in milliseconds (only for I2C_Brzo library). A positive number, defaults to 200
i2cFreq	I2C SCL frequency (only for I2C_Brzo library). A positive number, defaults to 1000

Magnitudes

Each individual magnitude can be configured by using special configuration keys. Each magnitute is assigned an unique index #. Default values depend on the selected sensor

Configuration key	Description
xCorrection#	Static offset for the value
xMinDelta#	After N readings (specified as snsReport), check if the value changed by at least this much and only then proceed with the report action
xMaxDelta#	After each reading, check if the value had changed by at least this much and trigger the report action (even before the snsReport number of readings is reached)
xZeroThreshold#	After each reading, check if the sensor value is above a certain threshold. If not, reset the value to 0. Setting value is expected to be greater or equal to zero. Defaults to 'NaN', value is read as-is.
xMinThreshold#	After each reading, check if the sensor value is above a certain threshold. Proceed with the report action only when this condition is true. Defaults to 'NaN', value is always reported
xMaxThreshold#	After each reading, check if the sensor value is below a certain threshold. Proceed with the report action only when this condition is true. Defaults to 'NaN', value is always reported

Where x is one of:

Prefix	Description
tmp	Temperature
hum	Humidity
press	Pressure
curr	Current
volt	Voltage
pwrP	Active power
pwrQ	Apparent power
pwrModS	Reactive power
pwrPF	Power factor
ene	Energy (total)
eneDelta	Energy delta
analog	Analog reading
digital	Digital reading
event
pm1dot0
pm1dot5
pm10
co2
voc
iaq
iaqAccuracy
iaqStatic
lux
uva
uvb
uvi
distance
hcho
gcpm
gsiev
count
no2
co
res	Resistance
ph
freq

Units

Configuration key	Description
xUnits#	Defaults to the unit choosen by the BaseSensor or the custom override specific to the selected sensor

Settings use 'Unit' enumeration represented as integer, which can be found in the sensor.h. Note that each sensor may provide a different Magnitude<->Unit defaults.

Unit	Number
None	1
Celcius	2
Farenheit	3
Kelvin	4
Percentage	5
Hectopascal	6
Ampere	7
Volt	8
Voltampere	9
Kilovoltampere	10
VoltampereReactive	11
KilovoltampereReactive	12
Watt	13
Kilowatt	14
WattSecond	15
Joule	15
KilowattHour	16
PartsPerMillion	17
Ohm	18
MicrogrammPerCubicMeter	19
MilligrammPerCubicMeter	20
Lux	21
UltravioletIndex	22
CountsPerMinute	23
MicrosievertPerHour	24
Meter	25
Hertz	26
Ph	27

EmonSensor configuration

Configuration key	Description
pwrRatioC#	Ratio for the current
pwrRatioP#	Ratio for the active power
pwrRatioV#	Ratio for the voltage
pwrRatioE#	Ratio for the energy
pwrVoltage#	Nominal RMS mains voltage (125, 220, 230...). Depends on country, 230 by default