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Python RPI interface to low-level ICs

Project description

PyRPIIC

⚠️ WARNING: This is a very early pre-release. Expect things to break. ⚠️

A [Py]thon 3 addon for [R]aspberry [Pi] that enables [i]nterfacing w/ a variety of low-level board [IC]s.

PyPI

Compatibility

  • Raspberry Pi Models: A, B (revisions 1.0 and 2.0), A+, B+, 2, 3, 3+, 3 A+, 4, Compute Module 3, Zero.
  • Python 3.7+

Install

Install the latest from PyPi:

pip install pyrpiic

-OR- using pipenv:

pipenv install pyrpiic

Install from source:

python3 setup.py install

Modules

Clocks

  • LMK612
  • SI570

EEPROMs

  • Generic
  • M24C02

I2C-GPIO Expanders

  • TCA6416A

Sensors

  • LDC1412
  • LDC1414
  • LDC1612
  • LDC1614

Examples

Clocks (Programmable Oscillators)

from pyrpio.i2c import I2C
from pyrpiic.clock.lmk61e2 import LMK61E2

# Create and open I2C bus
i2c_bus = I2C('/dev/i2c-3')
i2c_bus.open()

# Create clock
clock = LMK61E2(i2c_bus, 0x5A)

# Perform various clock operations
clock.set_frequency(156_250_000)
freq, regs = clock.get_frequency()
clock.regs2freq(regs)
clock.set_registers(regs)

# Close I2C bus
i2c_bus.close()

I2C-GPIO Expanders

from pyrpio.i2c import I2C
from pyrpiic.ioexpander.tca6416a import TCA6416A

# Create and open I2C bus
i2c_bus = I2C('/dev/i2c-3')
i2c_bus.open()

# Create gpio expander
gpio_exp = TCA6416A(i2c3, 0x21)

# Set GPIO P00 as output pulled high
gpio_exp.set_gpio_direction('P00', 'OUT')
gpio_exp.set_gpio_output('P00', high=True)

# Set GPIO P01 as input w/ flipped polarity and read value
gpio_exp.set_gpio_direction('P01', 'IN')
gpio_exp.set_gpio_polarity('P01', flipped=True)
gpio_exp.get_gpio_input('P01')

# Close I2C bus
i2c_bus.close()

Project details


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Files for PyRPIIC, version 0.0.4
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