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python-mcp2221's Introduction

Python driver for MCP2221/A

Build PyPI

Examples

Read GP0

from MCP2221 import MCP2221

mcp2221 = MCP2221.MCP2221()
mcp2221.InitGP(0, MCP2221.TYPE.INPUT)
print(mcp2221.ReadGP(0))

Write GP0

from MCP2221 import MCP2221

mcp2221 = MCP2221.MCP2221()
mcp2221.InitGP(0, MCP2221.TYPE.OUTPUT)
print(mcp2221.WriteGP(0, 1))

Read ADC on GP1

from MCP2221 import MCP2221

mcp2221 = MCP2221.MCP2221()
mcp2221.InitGP(1, MCP2221.TYPE.ADC)
mcp2221.SetADCVoltageReference(MCP2221.VRM.VDD)
print(mcp2221.ReadADC(1))

Write DAC on GP2

from MCP2221 import MCP2221

mcp2221 = MCP2221.MCP2221()
mcp2221.InitGP(2, MCP2221.TYPE.DAC)
mcp2221.SetDACVoltageReference(MCP2221.VRM.REF_2_048V)
mcp2221.WriteDAC(12)

Tests

pip install pytest pytest-cov
pytest tests/ --doctest-modules --cov=MCP2221

python-mcp2221's People

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Forkers

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python-mcp2221's Issues

Support i2c interface

mcp2221 has a i2c interface which can be used to access further sensors.
Are there any plans to support it?

ReadFlash returns wrong range

ReadFlash method returns wrong range of bytes in the following cases: FLASH.USB_MANUFACTURER, FLASH.USB_PRODUCT_DESCRIPTOR, FLASH.USB_SERIAL_NUMBER. It returns the range [3:(3+buf[2])] but the correct one would be [4:(4+buf[2]-2)] according to the datasheet.

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