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add option to specify baudrate #25

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Merged
merged 2 commits into from
Sep 28, 2022
Merged

add option to specify baudrate #25

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752dc3c
add option to specify baudrate
semininja Sep 27, 2022
bd3ad17
no idea what's different but ok
semininja Sep 28, 2022
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7 changes: 4 additions & 3 deletions adafruit_74hc595.py
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Original file line number Diff line number Diff line change
Expand Up @@ -120,17 +120,18 @@ def pull(self, val: digitalio.Pull): # pylint: disable=no-self-use


class ShiftRegister74HC595:
"""Initialise the 74HC595 on specified SPI bus
and indicate the number of shift registers being used
"""Initialise the 74HC595 on specified SPI bus, indicate the
number of shift registers being used and optional baudrate.
"""

def __init__(
self,
spi: busio.SPI,
latch: digitalio.DigitalInOut,
number_of_shift_registers: int = 1,
baudrate: int = 1000000,
):
self._device = spi_device.SPIDevice(spi, latch, baudrate=1000000)
self._device = spi_device.SPIDevice(spi, latch, baudrate=baudrate)
self._number_of_shift_registers = number_of_shift_registers
self._gpio = bytearray(self._number_of_shift_registers)

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