adafruit_support_bill

by denys on Tue Aug 21, 2018 7:18 am

Thanks for your efforts Seth.
If I manage to get it working I'll post here.

by drewfustini on Fri Aug 24, 2018 2:31 am

Here is how I wired MCP23017 to BeagleBone Black:
https://photos.app.goo.gl/3Y5byeYeAjqkHbKG8

by drewfustini on Fri Aug 24, 2018 3:41 am

MCP23017 appears on I2C1:

P9.17 = I2C1_SCL
P9.18 = I2C1_SDA

Code: Select all | TOGGLE FULL SIZE: debian@beaglebone:~/Adafruit_Python_CharLCD/examples$ i2cdetect -r -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- --

I am able to use this Python program to toggle an LED connected to the MCP23017 and read an input:

Code: Select all | TOGGLE FULL SIZE: debian@beaglebone:~/Adafruit_Python_CharLCD/examples$ cat mcp-test.py #!/usr/bin/python import time import Adafruit_GPIO as GPIO import Adafruit_GPIO.MCP230xx as MCP # P9.17 = I2C1_SCL # P9.18 = I2C1_SDA # Alternatively you can initialize the MCP device on another I2C address or bus. mcp = MCP.MCP23017(0x20, busnum=1) mcp.setup(8, GPIO.OUT) mcp.output(8, GPIO.HIGH) time.sleep(0.5) mcp.output(8, GPIO.LOW) time.sleep(0.5) mcp.output(8, GPIO.HIGH) mcp.setup(9, GPIO.IN) mcp.pullup(9, True) print (mcp.input(9))

by denys on Fri Aug 24, 2018 4:32 am

Hi again drewrustini. Thanks for the help.

Obviously have something wrong as I get...

debian@beaglebone:~$ python -u testRW.py
Traceback (most recent call last):
File "testRW.py", line 5, in <module>
import Adafruit_GPIO as GPIO
ImportError: No module named Adafruit_GPIO

What did you do to set up the libraries?
Do you have a link to a step by step instruction?
I tried https://learn.adafruit.com/character-lc ... lack/usage but it did not work.

Also tried https://github.com/adafruit/Adafruit_Python_GPIO unsucessfully)
Denys.

by drewfustini on Fri Aug 24, 2018 12:12 pm

Please copy and paste this program from my previous post and try to run it on your BeagleBone.

Code: Select all | TOGGLE FULL SIZE: #!/usr/bin/python import time import Adafruit_GPIO as GPIO import Adafruit_GPIO.MCP230xx as MCP # P9.17 = I2C1_SCL # P9.18 = I2C1_SDA # Alternatively you can initialize the MCP device on another I2C address or bus. mcp = MCP.MCP23017(0x20, busnum=1) mcp.setup(8, GPIO.OUT) mcp.output(8, GPIO.HIGH) time.sleep(0.5) mcp.output(8, GPIO.LOW) time.sleep(0.5) mcp.output(8, GPIO.HIGH) mcp.setup(9, GPIO.IN) mcp.pullup(9, True) print (mcp.input(9))

If you get error that Adafruit GPIO module is not found, then try installing Adafruit_Python_GPIO with the step-by-step instructions:

https://github.com/adafruit/Adafruit_Py ... /README.md

Code: Select all | TOGGLE FULL SIZE: sudo apt-get update sudo apt-get install build-essential python-pip python-dev python-smbus git git clone https://github.com/adafruit/Adafruit_Python_GPIO.git cd Adafruit_Python_GPIO sudo python setup.py install

And please paste and errors you get into your reply.

by denys on Sat Aug 25, 2018 4:51 am

Hi again Drew.
Ihis mornig I tried with no sucess so this evening I started with a new SD image.

My file name is "testRW.py"

Code: Select all | TOGGLE FULL SIZE: # https://forums.adafruit.com/viewtopic.php?f=49&t=139446&p=693005#p693005 # debian@beaglebone:~/Adafruit_Python_CharLCD/examples$ cat mcp-test.py # !/usr/bin/python import time import Adafruit_GPIO as GPIO import Adafruit_GPIO.MCP230xx as MCP # P9.17 = I2C1_SCL # P9.18 = I2C1_SDA # Alternatively you can initialize the MCP device on another I2C address or bus. mcp = MCP.MCP23017(0x27, busnum=1) mcp.setup(8, GPIO.OUT) mcp.output(8, GPIO.HIGH) time.sleep(0.5) mcp.output(8, GPIO.LOW) time.sleep(0.5) mcp.output(8, GPIO.HIGH) mcp.setup(9, GPIO.IN) mcp.pullup(9, True) print (mcp.input(9))

Here is the complete output, colplete with errors.

Code: Select all | TOGGLE FULL SIZE: debian@beaglebone:~$ sudo apt-get update We trust you have received the usual lecture from the local System Administrator. It usually boils down to these three things: #1) Respect the privacy of others. #2) Think before you type. #3) With great power comes great responsibility. [sudo] password for debian: Ign:1 http://deb.debian.org/debian stretch InRelease Get:2 http://deb.debian.org/debian stretch-updates InRelease [91.0 kB] Get:3 http://repos.rcn-ee.com/debian stretch InRelease [3,058 B] Get:4 http://deb.debian.org/debian-security stretch/updates InRelease [94.3 kB] Get:5 http://deb.debian.org/debian stretch Release [118 kB] Get:6 http://deb.debian.org/debian stretch Release.gpg [2,434 B] Get:7 http://deb.debian.org/debian stretch-updates/main armhf Packages [5,112 B] Get:8 http://repos.rcn-ee.com/debian stretch/main armhf Packages [655 kB] Get:9 http://deb.debian.org/debian-security stretch/updates/contrib armhf Packages [1,764 B] Get:10 http://deb.debian.org/debian-security stretch/updates/non-free armhf Packages [1,268 B] Get:11 http://deb.debian.org/debian-security stretch/updates/main armhf Packages [377 kB] Get:12 http://deb.debian.org/debian stretch/non-free armhf Packages [60.0 kB] Get:13 http://deb.debian.org/debian stretch/main armhf Packages [6,927 kB] Get:14 http://deb.debian.org/debian stretch/contrib armhf Packages [42.1 kB] Fetched 8,379 kB in 24s (340 kB/s) Reading package lists... Done debian@beaglebone:~$ sudo apt-get install build-essential python-pip python-dev python-smbus git Reading package lists... Done Building dependency tree Reading state information... Done build-essential is already the newest version (12.3). git is already the newest version (1:2.11.0-3+deb9u3). python-dev is already the newest version (2.7.13-2). The following additional packages will be installed: gir1.2-glib-2.0 libdbus-glib-1-2 libgirepository-1.0-1 libpython-all-dev python-all python-all-dev python-cffi-backend python-crypto python-cryptography python-dbus python-enum34 python-gi python-idna python-ipaddress python-keyring python-keyrings.alt python-pkg-resources python-pyasn1 python-secretstorage python-setuptools python-six python-wheel python-xdg Suggested packages: python-crypto-dbg python-crypto-doc python-cryptography-doc python-cryptography-vectors python-dbus-dbg python-dbus-doc python-enum34-doc python-gi-cairo gnome-keyring libkf5wallet-bin gir1.2-gnomekeyring-1.0 python-fs python-gdata python-kde4 python-keyczar doc-base python-secretstorage-doc python-setuptools-doc The following NEW packages will be installed: gir1.2-glib-2.0 libdbus-glib-1-2 libgirepository-1.0-1 libpython-all-dev python-all python-all-dev python-cffi-backend python-crypto python-cryptography python-dbus python-enum34 python-gi python-idna python-ipaddress python-keyring python-keyrings.alt python-pip python-pkg-resources python-pyasn1 python-secretstorage python-setuptools python-six python-smbus python-wheel python-xdg 0 upgraded, 25 newly installed, 0 to remove and 43 not upgraded. Need to get 2,554 kB of archives. After this operation, 8,991 kB of additional disk space will be used. Do you want to continue? [Y/n] Y Get:1 http://deb.debian.org/debian stretch/main armhf libgirepository-1.0-1 armhf 1.50.0-1+b1 [77.7 kB] Get:2 http://deb.debian.org/debian stretch/main armhf gir1.2-glib-2.0 armhf 1.50.0-1+b1 [139 kB] Get:3 http://deb.debian.org/debian stretch/main armhf libdbus-glib-1-2 armhf 0.108-2 [197 kB] Get:4 http://deb.debian.org/debian stretch/main armhf libpython-all-dev armhf 2.7.13-2 [958 B] Get:5 http://deb.debian.org/debian stretch/main armhf python-all armhf 2.7.13-2 [940 B] Get:6 http://deb.debian.org/debian stretch/main armhf python-all-dev armhf 2.7.13-2 [962 B] Get:7 http://deb.debian.org/debian stretch/main armhf python-cffi-backend armhf 1.9.1-2 [60.8 kB] Get:8 http://deb.debian.org/debian stretch/main armhf python-crypto armhf 2.6.1-7 [255 kB] Get:9 http://deb.debian.org/debian stretch/main armhf python-enum34 all 1.1.6-1 [35.0 kB] Get:10 http://deb.debian.org/debian stretch/main armhf python-idna all 2.2-1 [32.6 kB] Get:11 http://deb.debian.org/debian stretch/main armhf python-ipaddress all 1.0.17-1 [18.1 kB] Get:12 http://deb.debian.org/debian stretch/main armhf python-pyasn1 all 0.1.9-2 [51.8 kB] Get:13 http://deb.debian.org/debian stretch/main armhf python-pkg-resources all 33.1.1-1 [166 kB] Get:14 http://deb.debian.org/debian stretch/main armhf python-setuptools all 33.1.1-1 [297 kB] Get:15 http://deb.debian.org/debian stretch/main armhf python-six all 1.10.0-3 [14.4 kB] Get:16 http://deb.debian.org/debian stretch/main armhf python-cryptography armhf 1.7.1-3 [179 kB] Get:17 http://deb.debian.org/debian stretch/main armhf python-dbus armhf 1.2.4-1+b1 [178 kB] Get:18 http://deb.debian.org/debian stretch/main armhf python-gi armhf 3.22.0-2 [502 kB] Get:19 http://deb.debian.org/debian stretch/main armhf python-secretstorage all 2.3.1-2 [13.8 kB] Get:20 http://deb.debian.org/debian stretch/main armhf python-keyring all 10.1-1 [40.7 kB] Get:21 http://deb.debian.org/debian stretch/main armhf python-keyrings.alt all 1.3-1 [16.4 kB] Get:22 http://deb.debian.org/debian stretch/main armhf python-pip all 9.0.1-2 [179 kB] Get:23 http://deb.debian.org/debian stretch/main armhf python-wheel all 0.29.0-2 [51.7 kB] Get:24 http://deb.debian.org/debian stretch/main armhf python-xdg all 0.25-4 [35.8 kB] Get:25 http://deb.debian.org/debian stretch/main armhf python-smbus armhf 3.1.2-3 [9,698 B] Fetched 2,554 kB in 3s (725 kB/s) Selecting previously unselected package libgirepository-1.0-1:armhf. (Reading database ... 34916 files and directories currently installed.) Preparing to unpack .../00-libgirepository-1.0-1_1.50.0-1+b1_armhf.deb ... Unpacking libgirepository-1.0-1:armhf (1.50.0-1+b1) ... Selecting previously unselected package gir1.2-glib-2.0:armhf. Preparing to unpack .../01-gir1.2-glib-2.0_1.50.0-1+b1_armhf.deb ... Unpacking gir1.2-glib-2.0:armhf (1.50.0-1+b1) ... Selecting previously unselected package libdbus-glib-1-2:armhf. Preparing to unpack .../02-libdbus-glib-1-2_0.108-2_armhf.deb ... Unpacking libdbus-glib-1-2:armhf (0.108-2) ... Selecting previously unselected package libpython-all-dev:armhf. Preparing to unpack .../03-libpython-all-dev_2.7.13-2_armhf.deb ... Unpacking libpython-all-dev:armhf (2.7.13-2) ... Selecting previously unselected package python-all. Preparing to unpack .../04-python-all_2.7.13-2_armhf.deb ... Unpacking python-all (2.7.13-2) ... Selecting previously unselected package python-all-dev. 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Unpacking python-xdg (0.25-4) ... Selecting previously unselected package python-smbus:armhf. Preparing to unpack .../24-python-smbus_3.1.2-3_armhf.deb ... Unpacking python-smbus:armhf (3.1.2-3) ... Setting up python-idna (2.2-1) ... Setting up python-crypto (2.6.1-7) ... Setting up python-smbus:armhf (3.1.2-3) ... Setting up libdbus-glib-1-2:armhf (0.108-2) ... Setting up python-pyasn1 (0.1.9-2) ... Setting up python-wheel (0.29.0-2) ... Setting up libpython-all-dev:armhf (2.7.13-2) ... Setting up python-pkg-resources (33.1.1-1) ... Setting up libgirepository-1.0-1:armhf (1.50.0-1+b1) ... Setting up python-keyrings.alt (1.3-1) ... Setting up python-cffi-backend (1.9.1-2) ... Setting up python-six (1.10.0-3) ... Setting up gir1.2-glib-2.0:armhf (1.50.0-1+b1) ... Processing triggers for libc-bin (2.24-11+deb9u3) ... Setting up python-enum34 (1.1.6-1) ... Setting up python-dbus (1.2.4-1+b1) ... Remove stale byte-compiled files... Setting up python-ipaddress (1.0.17-1) ... Setting up python-pip (9.0.1-2) ... Setting up python-all (2.7.13-2) ... Setting up python-xdg (0.25-4) ... Setting up python-setuptools (33.1.1-1) ... Setting up python-gi (3.22.0-2) ... Setting up python-all-dev (2.7.13-2) ... Setting up python-cryptography (1.7.1-3) ... Setting up python-secretstorage (2.3.1-2) ... Setting up python-keyring (10.1-1) ... debian@beaglebone:~$ git clone https://github.com/adafruit/Adafruit_Python_GPIO.git Cloning into 'Adafruit_Python_GPIO'... remote: Counting objects: 419, done. remote: Total 419 (delta 0), reused 0 (delta 0), pack-reused 419 Receiving objects: 100% (419/419), 162.83 KiB | 270.00 KiB/s, done. Resolving deltas: 100% (258/258), done. debian@beaglebone:~$ cd Adafruit_Python_GPIO debian@beaglebone:~/Adafruit_Python_GPIO$ sudo python setup.py install running install Checking .pth file support in /usr/local/lib/python2.7/dist-packages/ /usr/bin/python -E -c pass TEST PASSED: /usr/local/lib/python2.7/dist-packages/ appears to support .pth files running bdist_egg running egg_info creating Adafruit_GPIO.egg-info writing requirements to Adafruit_GPIO.egg-info/requires.txt writing Adafruit_GPIO.egg-info/PKG-INFO writing top-level names to Adafruit_GPIO.egg-info/top_level.txt writing dependency_links to Adafruit_GPIO.egg-info/dependency_links.txt writing requirements to Adafruit_GPIO.egg-info/requires.txt writing Adafruit_GPIO.egg-info/PKG-INFO writing top-level names to Adafruit_GPIO.egg-info/top_level.txt writing dependency_links to Adafruit_GPIO.egg-info/dependency_links.txt writing manifest file 'Adafruit_GPIO.egg-info/SOURCES.txt' reading manifest file 'Adafruit_GPIO.egg-info/SOURCES.txt' writing manifest file 'Adafruit_GPIO.egg-info/SOURCES.txt' installing library code to build/bdist.linux-armv7l/egg running install_lib running build_py creating build creating build/lib.linux-armv7l-2.7 creating build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/PCA95xx.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/SPI.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/PWM.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/__init__.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/Platform.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/PCF8574.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/GPIO.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/MCP230xx.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/FT232H.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO copying Adafruit_GPIO/I2C.py -> build/lib.linux-armv7l-2.7/Adafruit_GPIO creating build/lib.linux-armv7l-2.7/tests copying tests/MockGPIO.py -> build/lib.linux-armv7l-2.7/tests copying tests/test_GPIO.py -> build/lib.linux-armv7l-2.7/tests copying tests/__init__.py -> build/lib.linux-armv7l-2.7/tests copying tests/test_Platform.py -> build/lib.linux-armv7l-2.7/tests copying tests/test_PWM.py -> build/lib.linux-armv7l-2.7/tests copying tests/test_SPI.py -> build/lib.linux-armv7l-2.7/tests copying tests/test_I2C.py -> build/lib.linux-armv7l-2.7/tests creating build/bdist.linux-armv7l creating build/bdist.linux-armv7l/egg creating build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/PCA95xx.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/SPI.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/PWM.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/__init__.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/Platform.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/PCF8574.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/GPIO.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/MCP230xx.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/FT232H.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO copying build/lib.linux-armv7l-2.7/Adafruit_GPIO/I2C.py -> build/bdist.linux-armv7l/egg/Adafruit_GPIO creating build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/MockGPIO.py -> build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/test_GPIO.py -> build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/__init__.py -> build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/test_Platform.py -> build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/test_PWM.py -> build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/test_SPI.py -> build/bdist.linux-armv7l/egg/tests copying build/lib.linux-armv7l-2.7/tests/test_I2C.py -> build/bdist.linux-armv7l/egg/tests byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/PCA95xx.py to PCA95xx.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/SPI.py to SPI.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/PWM.py to PWM.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/__init__.py to __init__.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/Platform.py to Platform.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/PCF8574.py to PCF8574.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/GPIO.py to GPIO.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/MCP230xx.py to MCP230xx.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/FT232H.py to FT232H.pyc byte-compiling build/bdist.linux-armv7l/egg/Adafruit_GPIO/I2C.py to I2C.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/MockGPIO.py to MockGPIO.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/test_GPIO.py to test_GPIO.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/__init__.py to __init__.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/test_Platform.py to test_Platform.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/test_PWM.py to test_PWM.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/test_SPI.py to test_SPI.pyc byte-compiling build/bdist.linux-armv7l/egg/tests/test_I2C.py to test_I2C.pyc creating build/bdist.linux-armv7l/egg/EGG-INFO copying Adafruit_GPIO.egg-info/PKG-INFO -> build/bdist.linux-armv7l/egg/EGG-INFO copying Adafruit_GPIO.egg-info/SOURCES.txt -> build/bdist.linux-armv7l/egg/EGG-INFO copying Adafruit_GPIO.egg-info/dependency_links.txt -> build/bdist.linux-armv7l/egg/EGG-INFO copying Adafruit_GPIO.egg-info/requires.txt -> build/bdist.linux-armv7l/egg/EGG-INFO copying Adafruit_GPIO.egg-info/top_level.txt -> build/bdist.linux-armv7l/egg/EGG-INFO zip_safe flag not set; analyzing archive contents... creating dist creating 'dist/Adafruit_GPIO-1.0.3-py2.7.egg' and adding 'build/bdist.linux-armv7l/egg' to it removing 'build/bdist.linux-armv7l/egg' (and everything under it) Processing Adafruit_GPIO-1.0.3-py2.7.egg creating /usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg Extracting Adafruit_GPIO-1.0.3-py2.7.egg to /usr/local/lib/python2.7/dist-packages Adding Adafruit-GPIO 1.0.3 to easy-install.pth file Installed /usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg Processing dependencies for Adafruit-GPIO==1.0.3 Searching for spidev Reading http://pypi.python.org/simple/spidev/ Couldn't find index page for 'spidev' (maybe misspelled?) Scanning index of all packages (this may take a while) Reading http://pypi.python.org/simple/ No local packages or download links found for spidev error: Could not find suitable distribution for Requirement.parse('spidev') debian@beaglebone:~/Adafruit_Python_GPIO$ nano testRW.py debian@beaglebone:~/Adafruit_Python_GPIO$ python testRW.py Traceback (most recent call last): File "testRW.py", line 11, in <module> mcp = MCP.MCP23017(0x3f, busnum=1) File "/home/debian/Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py", line 153, in __init__ super(MCP23017, self).__init__(address, **kwargs) File "/home/debian/Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py", line 41, in __init__ self._device = i2c.get_i2c_device(address, **kwargs) File "/home/debian/Adafruit_Python_GPIO/Adafruit_GPIO/I2C.py", line 66, in get_i2c_device return Device(address, busnum, i2c_interface, **kwargs) File "/home/debian/Adafruit_Python_GPIO/Adafruit_GPIO/I2C.py", line 98, in __init__ import Adafruit_PureIO.smbus ImportError: No module named Adafruit_PureIO.smbus debian@beaglebone:~/Adafruit_Python_GPIO$

Also, this does not work, although the bashtest runs ok.

Code: Select all | TOGGLE FULL SIZE: debian@beaglebone:~/Adafruit_Python_GPIO$ i2cdetect -r -y 1 Error: Could not open file `/dev/i2c-1' or `/dev/i2c/1': No such file or directory debian@beaglebone:~/Adafruit_Python_GPIO$

I am really confused! It all seems to be going backwards :(
Denys.

by drewfustini on Mon Aug 27, 2018 1:09 am

It looks like you are missing some dependencies.

Couldn't find index page for 'spidev' (maybe misspelled?)
No local packages or download links found for spidev
error: Could not find suitable distribution for Requirement.parse('spidev')

import Adafruit_PureIO.smbus
ImportError: No module named Adafruit_PureIO.smbus

Run this command to install spidev:

Code: Select all | TOGGLE FULL SIZE: sudo pip install spidev

Run this command to install Adafruit-PureIO:

Code: Select all | TOGGLE FULL SIZE: sudo pip install Adafruit-PureIO

Then try to install Adafruit_Python_GPIO again:

Code: Select all | TOGGLE FULL SIZE: debian@beaglebone:~/Adafruit_Python_GPIO$ sudo apt-get install

by silver2row on Tue Aug 28, 2018 12:39 pm

Hello,

I am liar for coming back into this idea once I said I would not reply any longer. It seems you two are making some progress. I failed at: sudo pip install Adafruit-PureIO. Now I know.

Seth

P.S. I have been paying attention but not typing anything until now (again). I hope you guys can figure it out. I gave up b/c I am a quitter and not b/c the issue is not worth time and effort. I will keep paying attention and see if you guys get it straight. Good luck and Godspeed.

by drewfustini on Tue Aug 28, 2018 2:13 pm

silver2row wrote:I failed at: sudo pip install Adafruit-PureIO. Now I know.

Did this command not work for you?

Code: Select all | TOGGLE FULL SIZE: sudo pip install Adafruit-PureIO

by silver2row on Thu Aug 30, 2018 12:22 am

Hello,

Mr. Drew...Seth here. I am about to test that cmd:

Code: Select all | TOGGLE FULL SIZE: sudo pip install Adafruit-PureIO

Yes sir...that cmd worked for me. I actually have it on my BBBW already. But...this is what transpired when I had run your software from this forum posting.

Code: Select all | TOGGLE FULL SIZE: Traceback (most recent call last): File "tacoII.py", line 11, in <module> mcp = MCP.MCP23017(0x27, busnum=1) File "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/MCP230xx.py", line 153, in __init__ super(MCP23017, self).__init__(address, **kwargs) File "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/MCP230xx.py", line 50, in __init__ self.write_iodir() File "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/MCP230xx.py", line 133, in write_iodir self._device.writeList(self.IODIR, self.iodir) File "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/I2C.py", line 129, in writeList self._bus.write_i2c_block_data(self._address, register, data) File "/usr/local/lib/python2.7/dist-packages/Adafruit_PureIO-0.2.3-py2.7.egg/Adafruit_PureIO/smbus.py", line 294, in write_i2c_block_data self._device.write(data) IOError: [Errno 16] Device or resource busy

I listened to the ideas about installing Adafruit_Python_GPIO again after installing Adafruit-PureIO.

That is what printed out in error format.

Seth

P.S. IOError:[Errno 16] Device or resource busy <<<<< this error happens w/ your software and denys' software also. I thought the software would just run, e.g. even w/out the proper hardware.

by drewfustini on Thu Aug 30, 2018 3:16 am

silver2row wrote:
Code: Select all | TOGGLE FULL SIZE
IOError: [Errno 16] Device or resource busy

I believe this is because you do not have device connected to the I2C bus.

But I will test what happens when I disconnect the chip.

by silver2row on Sat Sep 01, 2018 8:46 pm

Yes Sir,

I will wait until you have enough time to check. Just for the record, I am not using this chip as of now. I just wanted to find out more about accessible chips for my BBB.

Seth

P.S. I wanted to help denys and see if I could figure out the issue. Anyway...when you have time, please let me know your findings.

by drewfustini on Thu Sep 06, 2018 7:37 pm

@denys: have you been able to try my instructions yet?
posting.php?mode=reply&f=49&t=139446#pr693535

by denys on Thu Sep 06, 2018 9:27 pm

Hi Drew.
I have to start again, again!

Something is way wrong!

debian@beaglebone:~$ i2cdetect -r -y 1
Error: Could not open file `/dev/i2c-1' or `/dev/i2c/1': No such file or directory

I think I will give up as I've tried his for months now.
The code had been ported to an Arduino and compiles. So far, I have not had time to actually try it, but I think that will be the way to go.
I do appreciate your help but obviously I am missing something as following the instructions even from a new install does not work.
Thanks again to you both.

If I do get it working on the BBB, I will post back here.
Denys.

by drewfustini on Thu Sep 06, 2018 9:46 pm

Thanks for the update.

If you do want to try further, then it would be interesting to see i2cdetect on the other buses:

Code: Select all | TOGGLE FULL SIZE: i2cdetect -r -y 0 i2cdetect -r -y 1 i2cdetect -r -y 2

Adafruit_BBIO problems Moderators: adafruit_support_bill, adafruit

Adafruit_BBIO problems
Moderators: adafruit_support_bill, adafruit