`adafruit_featherwing.ina219_featherwing`¶

Helper for using the INA219 FeatherWing.

Author(s): Kattni Rembor

class adafruit_featherwing.ina219_featherwing.INA219FeatherWing(i2c=None)[source]¶

Class representing an Adafruit INA219 FeatherWing.

Automatically uses the feather’s I2C bus.

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)

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)

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)

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=None)[source]¶

Class representing an Adafruit Joy FeatherWing.

Automatically uses the feather’s I2C bus.

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!")

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!")

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!")

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!")

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!")

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)

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()[source]¶

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=112, i2c=None)[source]¶

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=<sphinx.ext.autodoc.importer._MockObject object>, data=<sphinx.ext.autodoc.importer._MockObject object>, brightness=0.2)[source]¶

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=<sphinx.ext.autodoc.importer._MockObject object>, brightness=0.1)[source]¶

Class representing a NeoPixel FeatherWing.

The feather uses pins D6 by default

shift_down(rotate=False)[source]¶

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=False)[source]¶

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=None)[source]¶

Class representing an DS3231 Precision RTC FeatherWing.

Automatically uses the feather’s I2C bus.

datetime¶: Passthru property to the ds3231 library for compatibility

day¶: The Current Day

get_month_days(month=None, year=None)[source]¶

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.

hour¶: The Current Hour

is_leap_year(year=None)[source]¶

Check if the year is a leap year

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

minute¶: The Current Minute

month¶: The Current Month

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

second¶: The Current Second

set_date(day, month, year)[source]¶

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, minute, second=0)[source]¶

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)

unixtime¶: The Current Date and Time in Unix Time

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

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=1000, baudrate=9600)[source]¶

Class representing an Ultimate GPS FeatherWing.

Automatically uses the feather’s UART bus.

altitude¶: Return the Altitude in meters

fix_quality¶: Return the Fix Quality from the GPS

has_fix¶: Return whether the GPS has a Fix on some satellites

height_geoid¶: Return the Height GeoID in meters

horizontal_dilution¶: Return the Horizontal Dilution

latitude¶: Return the Current Latitude from the GPS

longitude¶: Return the Current Longitude from the GPS

read(size)[source]¶

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

satellites¶: Return the Number of Satellites we have a fix on

send_command(command)[source]¶

Send a bytearray command to the GPS module

Parameters:	command (bytearray) – The command to send

speed_knots¶: Return the GPS calculated speed in knots

speed_kph¶: Return the GPS calculated speed in Kilometers per Hour

speed_mph¶: Return the GPS calculated speed in Miles per Hour

timestamp¶: Return the Fix Timestamp as a struct_time

track_angle¶: Return the Tracking angle in degrees

update()[source]¶

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=112, i2c=None)[source]¶

Class representing an Adafruit 8x16 LED Matrix FeatherWing.

Automatically uses the feather’s I2C bus.

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

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

fill(fill)[source]¶

Turn all pixels on or off

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

pixel(x, y, color=None)[source]¶

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=False)[source]¶

Shift all pixels down

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

shift_left(rotate=False)[source]¶

Shift all pixels left

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

shift_right(rotate=False)[source]¶

Shift all pixels right

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

shift_up(rotate=False)[source]¶

Shift all pixels up

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

show()[source]¶: Update the Pixels. This is only needed if auto_write is set to False This can be very useful for more advanced graphics effects.