# I2C
# ----------------------------------------------------------------
def i2c_configure(self, baudrate, pullup=False):
+ """Configure I2C."""
if self._i2c_index is None:
raise RuntimeError("I2C bus not initialized.")
raise RuntimeError("I2C init error.")
def i2c_set_port(self, index):
+ """Set I2C port."""
if index not in (0, 1):
raise ValueError("I2C index must be 0 or 1.")
self._i2c_index = index
# SPI
# ----------------------------------------------------------------
def spi_configure(self, baudrate):
+ """Configure SPI."""
if self._spi_index is None:
raise RuntimeError("SPI bus not initialized.")
raise RuntimeError("SPI init error.")
def spi_set_port(self, index):
+ """Set SPI port."""
if index not in (0, 1):
raise ValueError("SPI index must be 0 or 1.")
self._spi_index = index
def spi_write(self, buffer, *, start=0, end=None):
+ """SPI write."""
if self._spi_index is None:
raise RuntimeError("SPI bus not initialized.")
start += chunk
def spi_readinto(self, buffer, *, start=0, end=None, write_value=0):
+ """SPI readinto."""
if self._spi_index is None:
raise RuntimeError("SPI bus not initialized.")
in_start=0,
in_end=None
):
+ """SPI write and readinto."""
raise NotImplementedError("SPI write_readinto Not implemented")
# ----------------------------------------------------------------
# NEOPIXEL
# ----------------------------------------------------------------
def neopixel_write(self, gpio, buf):
+ """NeoPixel write."""
# open serial (data is sent over this)
if self._serial is None:
import serial
# PWM
# ----------------------------------------------------------------
def pwm_configure(self, pin, frequency=500, duty_cycle=0, variable_frequency=False):
+ """Configure PWM."""
self.pwm_deinit(pin)
resp = self._hid_xfer(bytes([self.PWM_INIT_PIN, pin.id]), True)
if resp[1] != self.RESP_OK:
self.pwm_set_duty_cycle(pin, duty_cycle)
def pwm_deinit(self, pin):
+ """Deinit PWM."""
self._hid_xfer(bytes([self.PWM_DEINIT_PIN, pin.id]))
def pwm_get_frequency(self, pin):
+ """PWM get freq."""
resp = self._hid_xfer(
bytes([self.PWM_GET_FREQ, pin.id])
+ frequency.to_bytes(4, byteorder="little"),
return int.from_bytes(resp[3 : 3 + 4], byteorder="little")
def pwm_set_frequency(self, pin, frequency):
+ """PWM set freq."""
resp = self._hid_xfer(
bytes([self.PWM_SET_FREQ, pin.id])
+ frequency.to_bytes(4, byteorder="little"),
raise RuntimeError("PWM frequency error.")
def pwm_get_duty_cycle(self, pin):
+ """PWM get duty cycle."""
resp = self._hid_xfer(bytes([self.PWM_GET_DUTY_U16, pin.id]), True)
if resp[1] != self.RESP_OK:
raise RuntimeError("PWM get duty cycle error.")
return int.from_bytes(resp[3 : 3 + 4], byteorder="little")
def pwm_set_duty_cycle(self, pin, duty_cycle):
+ """PWM set duty cycle."""
resp = self._hid_xfer(
bytes([self.PWM_SET_DUTY_U16, pin.id])
+ duty_cycle.to_bytes(2, byteorder="little"),