PCF8574
This is a Python library for use with the PCF8574 I2C IO expander chip. It abstracts the 8 bit IO port as a Python list, and allows the read/writing of individual pins or the whole port at once.
Installation
The library depends on the smbus-cffi package. You may need to apt-get install libffi-dev if you're on a debian based system. Otherwise, simply:
pip install pcf8574
Usage
In [1]: from pcf8574 import PCF8574
In [2]: i2c_port_num = 1
In [3]: pcf_address = 0x20
In [4]: pcf = PCF8574(i2c_port_num, pcf_address)
In [5]: pcf.port
Out[5]: [True, True, True, True, True, True, True, True]
In [6]: pcf.port[0] = False
In [7]: pcf.port
Out[7]: [False, True, True, True, True, True, True, True]
In [8]: pcf.port = [True, False, True, False, True, False, True, False]
In [9]: pcf.port
Out[9]: [True, False, True, False, True, False, True, False]
In [10]: pcf.port[7]
Out[10]: False
In [11]: pcf.port[6]
Out[11]: True
1 maintainer
Release files for pcf8574 0.1.3
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| pcf8574-0.1.3.tar.gz | 3.1 kB | Details |
Release files / pcf8574-0.1.3.tar.gz
| Download URL | pcf8574-0.1.3.tar.gz |
|---|---|
| Size | 3.1 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
e72c9f0726077128caa8d51e223e803a398de321a4f9aca73e8f011ee04ddbf8
|
|
BLAKE2b-256 checksum How to use checksums |
a91da579abbaf23bf7602158f02a87cd7475ca96771b317f4d7b397d5ff709cd
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/39.0.1 requests-toolbelt/0.9.1 tqdm/4.31.1 CPython/3.6.9
|
