adafruit_featherwing.ina219_featherwing

Helper for using the INA219 FeatherWing.

• Author(s): Kattni Rembor

class adafruit_featherwing.ina219_featherwing.INA219FeatherWing(i2c: Optional[busio.I2C] = None)

Class representing an Adafruit INA219 FeatherWing.

Automatically uses the feather’s I2C bus.

property bus_voltage

Bus voltage returns volts.

This example prints the bus voltage with the appropriate units.

from adafruit_featherwing import ina219_featherwing
import time

ina219 = ina219_featherwing.INA219FeatherWing()

while True:
    print("Bus Voltage: {} V".format(ina219.bus_voltage))
    time.sleep(0.5)

property current

Current returns mA.

This example prints the current with the appropriate units.

from adafruit_featherwing import ina219_featherwing
import time

ina219 = ina219_featherwing.INA219FeatherWing()

while True:
    print("Current: {} mA".format(ina219.current))
    time.sleep(0.5)

property shunt_voltage

Shunt voltage returns volts.

This example prints the shunt voltage with the appropriate units.

from adafruit_featherwing import ina219_featherwing
import time

ina219 = ina219_featherwing.INA219FeatherWing()

while True:
    print("Shunt Voltage: {} V".format(ina219.shunt_voltage))
    time.sleep(0.5)

property voltage

Voltage, known as load voltage, is bus voltage plus shunt voltage. Returns volts.

This example prints the voltage with the appropriate units.

from adafruit_featherwing import ina219_featherwing
import time

ina219 = ina219_featherwing.INA219FeatherWing()

while True:
    print("Voltage: {} V".format(ina219.voltage))
    time.sleep(0.5)

adafruit_featherwing.joy_featherwing

Helper for using the Joy FeatherWing.

• Author(s): Kattni Rembor

class adafruit_featherwing.joy_featherwing.JoyFeatherWing(i2c: Optional[busio.I2C] = None)

Class representing an Adafruit Joy FeatherWing.

Automatically uses the feather’s I2C bus.

property button_a

Joy featherwing button A.

This example prints when button A is pressed.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()

while True:
    if wing.button_a:
    print("Button A pressed!")

property button_b

Joy featherwing button B.

This example prints when button B is pressed.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()

while True:
    if wing.button_b:
    print("Button B pressed!")

property button_select

Joy featherwing button SELECT.

This example prints when button SELECT is pressed.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()

while True:
    if wing.button_select:
    print("Button SELECT pressed!")

property button_x

Joy featherwing button X.

This example prints when button X is pressed.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()

while True:
    if wing.button_x:
    print("Button X pressed!")

property button_y

Joy featherwing button Y.

This example prints when button Y is pressed.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()

while True:
    if wing.button_y:
    print("Button Y pressed!")

property joystick

Joy FeatherWing joystick.

This example zeros the joystick, and prints the coordinates of joystick when it is moved.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()
last_x = 0
last_y = 0
wing.zero_joystick()

while True:
    x, y = wing.joystick
    if (abs(x - last_x) > 3) or (abs(y - last_y) > 3):
        last_x = x
        last_y = y
        print(x, y)
    time.sleep(0.01)

property joystick_offset

Offset used to correctly report (0, 0) when the joystick is centered.

Provide a tuple of (x, y) to set your joystick center to (0, 0). The offset you provide is subtracted from the current reading. For example, if your joystick reads as (-4, 0), you would enter (-4, 0) as the offset. The code will subtract -4 from -4, and 0 from 0, returning (0, 0).

This example supplies an offset for zeroing, and prints the coordinates of the joystick when it is moved.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()
last_x = 0
last_y = 0

while True:
    wing.joystick_offset = (-4, 0)
    x, y = wing.joystick
    if (abs(x - last_x) > 3) or (abs(y - last_y) > 3):
        last_x = x
        last_y = y
        print(x, y)
    time.sleep(0.01)

zero_joystick()

Zeros the joystick by using current reading as (0, 0). Note: You must not be touching the joystick at the time of zeroing for it to be accurate.

This example zeros the joystick, and prints the coordinates of joystick when it is moved.

from adafruit_featherwing import joy_featherwing
import time

wing = joy_featherwing.JoyFeatherWing()
last_x = 0
last_y = 0
wing.zero_joystick()

while True:
    x, y = wing.joystick
    if (abs(x - last_x) > 3) or (abs(y - last_y) > 3):
        last_x = x
        last_y = y
        print(x, y)
    time.sleep(0.01)

adafruit_featherwing.alphanum_featherwing

Helper for using the 14-Segment AlphaNumeric FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.alphanum_featherwing.AlphaNumFeatherWing(address: int = 112, i2c: Optional[busio.I2C] = None)

Class representing an Adafruit 14-segment AlphaNumeric FeatherWing.

Automatically uses the feather’s I2C bus.

adafruit_featherwing.dotstar_featherwing

Helper for using the DotStar FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.dotstar_featherwing.DotStarFeatherWing(clock: microcontroller.Pin = board.D13, data: microcontroller.Pin = board.D11, brightness: float = 0.2)

Class representing a DotStar FeatherWing.

The feather uses pins D13 and D11

adafruit_featherwing.neopixel_featherwing

Helper for using the NeoPixel FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.neopixel_featherwing.NeoPixelFeatherWing(pixel_pin: microcontroller.Pin = board.D6, brightness: float = 0.1)

Class representing a NeoPixel FeatherWing.

The feather uses pins D6 by default

shift_down(rotate: bool = False)

Shift all pixels down.

Parameters

rotate – (Optional) Rotate the shifted pixels to top (default=False)

This example shifts 2 pixels down

import time
from adafruit_featherwing import neopixel_featherwing

neopixel = neopixel_featherwing.NeoPixelFeatherWing()

# Draw Red and Green Pixels
neopixel[4, 1] = (255, 0, 0)
neopixel[5, 1] = (0, 255, 0)

# Rotate it off the screen
for i in range(0, neopixel.rows - 1):
    neopixel.shift_down(True)
    time.sleep(.1)

time.sleep(1)
# Shift it off the screen
for i in range(0, neopixel.rows - 1):
    neopixel.shift_down()
    time.sleep(.1)

shift_up(rotate: bool = False)

Shift all pixels up

Parameters

rotate – (Optional) Rotate the shifted pixels to bottom (default=False)

This example shifts 2 pixels up

import time
from adafruit_featherwing import neopixel_featherwing

neopixel = neopixel_featherwing.NeoPixelFeatherWing()

# Draw Red and Green Pixels
neopixel[4, 1] = (255, 0, 0)
neopixel[5, 1] = (0, 255, 0)

# Rotate it off the screen
for i in range(0, neopixel.rows - 1):
    neopixel.shift_up(True)
    time.sleep(.1)

time.sleep(1)
# Shift it off the screen
for i in range(0, neopixel.rows - 1):
    neopixel.shift_up()
    time.sleep(.1)

adafruit_featherwing.rtc_featherwing

Helper for using the DS3231 Precision RTC FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.rtc_featherwing.RTCFeatherWing(i2c: Optional[busio.I2C] = None)

Class representing an DS3231 Precision RTC FeatherWing.

Automatically uses the feather’s I2C bus.

property datetime

Passthru property to the ds3231 library for compatibility

property day

The Current Day

get_month_days(month: Optional[int] = None, year: Optional[int] = None) → int

Return the number of days for the month of the given year

Parameters

• month (int) – (Optional) The month to use. If none is provided, current month is used.

• year (int) – (Optional) The year to check. If none is provided, current year is used.

property hour

The Current Hour

is_leap_year(year: Optional[int] = None) → bool

Check if the year is a leap year

Parameters

year (int) – (Optional) The year to check. If none is provided, current year is used.

property minute

The Current Minute

property month

The Current Month

property now

The Current Date and Time in Named Tuple Style (Read Only)

property second

The Current Second

set_date(day: int, month: int, year: int)

Set the date only

Parameters

• day (int) – The day we want to set the date to

• month (int) – The month we want to set the date to

• year (int) – The year we want to set the date to

set_time(hour: int, minute: int, second: int = 0)

Set the time only

Parameters

• hour (int) – The hour we want to set the time to

• minute (int) – The minute we want to set the time to

• second (int) – (Optional) The second we want to set the time to (default=0)

property unixtime

The Current Date and Time in Unix Time

property weekday

The Current Day of the Week Value (0-6) where Sunday is 0

property year

The Current Year

adafruit_featherwing.gps_featherwing

Helper for using the Ultimate GPS FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.gps_featherwing.GPSFeatherWing(update_period: int = 1000, baudrate: int = 9600)

Class representing an Ultimate GPS FeatherWing.

Automatically uses the feather’s UART bus.

property altitude

Return the Altitude in meters

property fix_quality

Return the Fix Quality from the GPS

property has_fix

Return whether the GPS has a Fix on some satellites

property height_geoid

Return the Height GeoID in meters

property horizontal_dilution

Return the Horizontal Dilution

property latitude

Return the Current Latitude from the GPS

property longitude

Return the Current Longitude from the GPS

read(size: int) → Optional[bytearray]

Read the UART for any information that may be on it

Parameters

size (int) – The size in bytes of the data to retrieve

Returns

Any data that is on the UART

Return type

bytearray

property satellites

Return the Number of Satellites we have a fix on

send_command(command: bytearray)

Send a bytearray command to the GPS module

Parameters

command (bytearray) – The command to send

property speed_knots

Return the GPS calculated speed in knots

property speed_kph

Return the GPS calculated speed in Kilometers per Hour

property speed_mph

Return the GPS calculated speed in Miles per Hour

property timestamp

Return the Fix Timestamp as a struct_time

property track_angle

Return the Tracking angle in degrees

update() → bool

Make sure to call gps.update() every loop iteration and at least twice as fast as data comes from the GPS unit (usually every second).

Returns

Whether it has parsed new data

Return type

bool

adafruit_featherwing.matrix_featherwing

Helper for using the Adafruit 8x16 LED Matrix FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.matrix_featherwing.MatrixFeatherWing(address: int = 112, i2c: Optional[busio.I2C] = None)

Class representing an Adafruit 8x16 LED Matrix FeatherWing.

Automatically uses the feather’s I2C bus.

property blink_rate

Blink Rate returns the current rate that the pixels blink. 0 = Not Blinking 1-3 = Successively slower blink rates

property brightness

Brightness returns the current display brightness. 0-15 = Dimmest to Brightest Setting

fill(fill: bool)

Turn all pixels on or off

Parameters

fill (bool) – True turns all pixels on, False turns all pixels off

pixel(x: int, y: int, color: Optional[bool] = None) → Optional[bool]

Turn a pixel on or off or retrieve a pixel value

Parameters

• x (int) – The pixel row

• y (int) – The pixel column

• color (int or bool) – Whether to turn the pixel on or off

shift_down(rotate: bool = False)

Shift all pixels down

Parameters

rotate – (Optional) Rotate the shifted pixels to top (default=False)

shift_left(rotate: bool = False)

Shift all pixels left

Parameters

rotate – (Optional) Rotate the shifted pixels to the right side (default=False)

shift_right(rotate: bool = False)

Shift all pixels right

Parameters

rotate – (Optional) Rotate the shifted pixels to the left side (default=False)

shift_up(rotate: bool = False)

Shift all pixels up

Parameters

rotate – (Optional) Rotate the shifted pixels to bottom (default=False)

show()

Update the Pixels. This is only needed if auto_write is set to False This can be very useful for more advanced graphics effects.

adafruit_featherwing.minitft_featherwing

Helper for using the Mini Color TFT with Joystick FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.minitft_featherwing.Buttons(up, down, left, right, a, b, select)

property a

Alias for field number 4

property b

Alias for field number 5

property down

Alias for field number 1

property left

Alias for field number 2

property right

Alias for field number 3

property select

Alias for field number 6

property up

Alias for field number 0

class adafruit_featherwing.minitft_featherwing.MiniTFTFeatherWing(address: int = 94, i2c: Optional[busio.I2C] = None, spi: Optional[busio.SPI] = None, cs: Optional[microcontroller.Pin] = None, dc: Optional[microcontroller.Pin] = None)

Class representing an Mini Color TFT with Joystick FeatherWing.

Automatically uses the feather’s I2C bus.

property backlight

Return the current backlight duty cycle value

property buttons

Return a set of buttons with current push values

adafruit_featherwing.tempmotion_featherwing

Helper for using the Adafruit ADXL343 + ADT7410 Sensor FeatherWing.

• Author(s): Melissa LeBlanc-Williams

class adafruit_featherwing.tempmotion_featherwing.TempMotionFeatherWing(adxl343_address: int = 83, adt7410_address: int = 72, i2c: Optional[int] = None)

Class helper representing an Adafruit ADXL343 + ADT7410 Sensor FeatherWing.

Automatically uses the feather’s I2C bus.

property acceleration

Returns the ADXL343 Acceleration

property configuration

Returns the ADT7410 Configuration

property data_rate

The data rate of the sensor.

disable_freefall_detection()

Disable freefall detection

disable_motion_detection()

Disable motion detection

disable_tap_detection()

Disable freefall detection

enable_freefall_detection(**kwargs: int)

Enable freefall detection

enable_motion_detection(**kwargs: int)

Enable motion detection

enable_tap_detection(**kwargs: int)

Enable freefall detection

property events

Returns the ADXL343 Enabled Events

property range

The measurement range of the sensor.

property status

Returns the ADT7410 Status

property temperature

Returns ADT7410 Temperature