dart_periphery library

Classes

AHTX0
AHT10, AHT20 temperature and humidity sensor.
BakeBitLedBar
Helper class for the BakeBit LED bar - see NanoHatHub.ledBarInitExt for details.
BME280
Bosch BME280/BMP280 sensor for temperature, pressure and humidity (BME280 only).
BME280result
BME280 measured data: temperature, pressure and humidity (BME280 only).
BME680
Bosch BME680 sensor for temperature, humidity, pressure and gas sensor (IAQ Indoor air quality).
BME680result
BME680 measured data: temperature, pressure, humidity and IAQ sensor.
DS1307
DS1307/D3231 real time clock
DummyDev
Dummy sensor for development.
Errno
Helper class for Linux errno.h definitions.
FeatureSetVersion
Set of internal SGP30 features
GestureSensor
PixArt PAJ7620U2 chip, can recognize 9 basic gestures.
GPIO
GPIO wrapper functions for Linux userspace character device gpio-cdev and sysfs GPIOs.
GPIOconfig
Configuration class for GPIO.advanced and GPIO.nameAdvanced.
GPIOreadEvent
Result of the GPIO.readEvent().
GroveBaseHat
Grove Base Hat RaspberryPi
GrovePiPlusHat
SeedStudio GrovePiPlusHat
I2C
I2C wrapper functions for Linux userspace i2c-dev devices.
I2Cmsg
I2Cmsg - container for the native NativeI2Cmsg struct.
IsolateAPI
Interface for pass device info as JSON to an isolate.
Led
LED wrapper functions for Linux userspace sysfs LEDs.
MCP9808
MCP9808 - high accuracy temperature sensor
MCP9808result
MCP9808 measured data: temperature
MLX90615
MLX90615 - digital infrared non-contact temperature sensor
MLX90615result
MLX90615 measured data: temperature
MMIO
MMIO wrapper functions for the Linux userspace /dev/mem device.
MPU6050
MPU-6050 Six-Axis (Gyro + Accelerometer) sensor
NanoHatHub
Extension hat from FriendlyARM
NativeI2Cmsg
Helper class mapped to the C struct i2c_msg
NativeI2CmsgHelper
Helper class which stores an array of native 'struct i2c_msg' messages. The user must call NativeI2CmsgHelper.dispose to free the allocated memory.
PCF8591
PN532
PN532BaseProtocol
PN532I2CImpl
PN532SpiImpl
PollMultipleEvent
Helper class for the static method GPIO.pollMultiple.
PWM
PWM wrapper functions for Linux userspace sysfs PWMs.
RawLuminosity
TSL2591 data class for raw values.
RawMeasurement
SGP30 raw data container for H₂ and Ethanol
SDC30
SDC30 CO₂ & Temperature & Humidity Sensor
SDC30result
SDC30 measured data: CO2, temperature and humidity.
Serial
Serial wrapper functions for Linux userspace termios tty devices.
SerialReadEvent
Result of a Serial.read operation.
SGP30
Sensirion eCO2 gas sensor, an air quality detection sensor.
SGP30result
SGP30 measured data: co2Equivalent and totalVOC sensor.
SHT31
Sensirion SHT31 temperature and humidity sensor with a high accuracy.
SHT31result
SHT31 measured data: temperature and humidity sensor.
SHT4x
Sensirion SHT4x temperature and humidity sensor with a high accuracy.
SHT4xresult
SHT4x measured data: temperature and humidity sensor.
SI1145
SiLabs SI1145 sensor for visible & IR light and UV index.
SPI
SPI wrapper functions for Linux userspace spidev devices.
SSD1306
SSD1306 128 x 64 Dot Matrix OLED
TSL2591
TSL2591 sensor for visible, IR light, full spectrum and lux
Uint<T extends Uint<T>>
Uint16
Uint32
Uint8
VL53L0X
VL53L0X sensor - Time-of-Flight (ToF) laser-ranging module.
VL53L0Xresult
VL53L0X measured data: range

Enums

AHTX0command
AHTX0 commands
AirQuality
IAQ values: excellent - invalidValue - contaning range and color
Baudrate
Serial baud rate
BitOrder
Bit order of multiple byte data of I2C or SPI devices. This order is defined by manufacturer of the device.
BME280model
Supported bme280 models
DataBits
Serial number of data bits
DigitalValue
Digital pin value
ERRNO
Dart enum representation of the Linux errno.h definitions.
FilterCoefficient
BME280 IIR Filter coefficient
FilterSize
BME680 IIR filter size
Gain
TSL2591 gain
Gesture
Gesture sensor PAj7620 directions
GPIObias
GPIO bias
GPIOdirection
GPIO input/output direction
GPIOdrive
GPIO drive
GPIOedge
GPIO edge
GPIOerrorCode
Mapped native GPIO error codes with the same index, but different leading sign.
GPIOpolling
Result codes of the GPIO.poll.
HeaterProfile
BME680 gas heater profile
I2CerrorCode
I2C error codes
I2CmsgFlags
I2C native i2c_msg flags from <linux/i2c.h> - converted only to lower case camel case looks a little strange
IntegrationTime
TSL2591 timings
LedBarColor
LED bar color - see NanoHatHub.ledBarInitExt for details.
LedBarLed
LED bar led numeration - see NanoHatHub.ledBarInitExt for details.
LedErrorCode
Led error code
MMIOerrorCode
MMIO error code
Mode
SHT4x sensor mode
OperatingMode
BME280 operation mode
OversamplingMultiplier
Oversampling multiplier definition for BME280, BMP280 and BME680 sensors.
Parity
Serial parity
Pin
PCF8591 pins
PinMode
Pin mode
Polarity
PWM polarity of the output
PowerMode
BME680 power modes
PWMerrorCode
PWM error code
RegisterWidth
I2C register width, 8 or 16 bits - I2C EEPROMs support 16-bit registers
SerialErrorCode
Serial error codes
SI1145cmd
SI1145 specific commands
SI1145param
SI1145 specific parameter
SI1145reg
SI1145 specific register
SPImode
SPI modes
StandbyDuration
BME280 inactive duration in standby mode
StopBits
Number of Serial stop bits

Extensions

CharacterCase on String
Helper for lower/uppercase checking

Constants

ahtx0DefaultI2Caddress → const int
Default I2C address of the AHTX0 sensor
bme280AlternativeI2Caddress → const int
Alternative I2C address of the BME280 sensor
bme280DefaultI2Caddress → const int
Default I2C address of the BME280 sensor
bme280Id → const int
BME280 hardware ID
bme680AlternativeI2Caddress → const int
Alternative I2C address of the BME680 sensor
bme680DefaultI2Caddress → const int
Default I2C address of the BME680 sensor
bmp280Id → const int
BMP280 hardware ID
dartPeripheryVersion → const String
dart_periphery version
ds1307DefaultI2Caddress → const int
Default address of the DS1307 sensor.
mcp9808DefaultI2Caddress → const int
Default address of the MCP9808 sensor.
mlx90615DefaultI2Caddress → const int
Default address of the MLX90615 sensor.
paj7620DefaultI2Caddress → const int
Default I2C address of the PAj7620 gesture sensor
pcf8591DefaultI2Caddress → const int
Default I2C address of the PCF8591 ADC
sdc30DefaultI2Caddress → const int
Default I2C address of the SDC30 sensor
sensorReadRetryCounter → const int
BME680 retry counter
sgp30DefaultI2Caddress → const int
Default I2C address of the SGP30 sensor
sht31AlternativeI2Caddress → const int
Alternative I2C address of the SHT31 sensor
sht31DefaultI2Caddress → const int
Default I2C address of the SHT31 sensor
sht4xDefaultI2Caddress → const int
Default I2C address of the SHT4x sensor
si1145DefaultI2Caddress → const int
Default I2C address of the SI1145 sensor
ssd1306DefaultI2Caddress → const int
Default address of the SSD1306 display.
tsl2591DefaultI2Caddress → const int
Default I2C address of the TSL2591 sensor
vl53L0xDefaultI2Caddress → const int
Default address of the VL53L0X sensor.

Functions

checkCRC(List<int> data) → bool
Checks data chunks according following schema: 2 bytes data and 1 byte crc
crc8(List<int> data) → int
CRC8 checksum
getAirQuality(int iaq) → AirQuality
Returns an AirQuality for a iaq value.
getCperipheryVersion() → String
Returns the version of the native c-periphery library.
getFlutterPiArgs() → List<String>
Returns the argument list of the running flutter-pi program by reading the /proc/PID/cmdline data. For a non flutter-pi environment an empty list will be returned.
getPeripheryLibPath() → String
Returns the path of the periphery library. Empty string. if the library is not loaded.
getPID() → int
Returns the PID of the running program for linux, -1 for all other platforms.
isFlutterPiEnv() → bool
Returns true for a flutter-pi environment.
loadLibFromFlutterAssetDir(bool use) → void
Loads the library form the flutter-pi asset directory.
loadPeripheryLib() → DynamicLibrary
Loads the Linux/CPU specific periphery library as a DynamicLibrary.
reuseTmpFileLibrary(bool reuse) → void
Allows to load an existing libperiphery.so file from tmp directory.
setCustomLibrary(String absolutePath) → void
dart_periphery loads a custom library. See native-libraries for details.
setLinuxLocalTime(DateTime dt) → bool
Sets the linux system (local) time using a DateTime.
setTempDirectory(String tmpDir) → void
Sets the tmp directory for the extraction of the libperiphery.so file.
useLocalLibrary() → void
dart_periphery loads the library from the actual directory. See native-libraries for details.
useSharedLibrary() → void
dart_periphery loads the shared library. See native-libraries for details.

Typedefs

ListCompare = bool Function(List, List)
PN532ReadyFunction = bool Function(int attemptCount)