Home automation board getting started

[enallon]

Hello,

Just received by board and have it installed and getting started with python lib.

I'm following Readme here: https://github.com/SequentMicrosystems/ioplus-rpi/blob/master/python/README.md

I did sudo pip install SMioplus

Then tried the provided import, but can't find the libioplus mopdule
import libioplus

 

[alexburcea]

Hi,

Could you share the output of the install process (sudo pip install SMioplus -U)
Then run python --version and share the output.
It might happens the pip install the library for one version of python that is not the default one.

 

[alexburcea]

Hi,

Looks like we have a issue with the library, until we fix it you can install it from the folder:
1) Get the repository (if you did not do it already) git clone https://github.com/SequentMicrosystems/ioplus-rpi.git
2) Browse to the repo cd ioplus-rpi
3) Install the library pip install -e python/

 

[enallon]

~/devel/src/ioplus-rpi $ sudo pip install SMioplus -U
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Requirement already satisfied: SMioplus in /usr/local/lib/python3.9/dist-packages (1.0.0)
Collecting SMioplus
Using cached https://www.piwheels.org/simple/smioplus/SMioplus-1.0.0-py2.py3-none-any.whl (3.2 kB)

python --version
Python 3.9.2

Also tried the second set of install instructions
~/devel/src/ioplus-rpi $ pip install -e python/
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Obtaining file:///home/eric/devel/src/ioplus-rpi/python
Installing collected packages: SMioplus
Running setup.py develop for SMioplus
Successfully installed SMioplus

 

[alexburcea]

pip install smbus

 

[enallon]

Sorry, that was a dumb one. I assumed it was a library specific to Sequent. Thanks for the help!

 

[alexburcea]

No problem.
Thank you for discovering the main bug, the library should work from pypi.

 

[enallon]

Before I ask a dumb question, I want to make sure I have the hardware on correctly. I've enabled the I2C interface and placed a jumper on Stack ID 0. Does that sounds right. Missing anything?

 

[alexburcea]

Stack level 0 means no jumper, now you set stack level 1.
You can use the command "ioplus -list" to see the stack level of every card connected (if you have more)

 

[enallon]

Ok, I'm able to read some inputs and get the relays going! Thanks. Till next time.

 

[enallon]

I'm playing around with the function getAdcV(stack, channel). Is there a way to read all channels at the same time? If not, is there a delay I need to incorporate when reading all channels?

 

[alexburcea]

Hi,
There is no function to read all channels so you have to read one at a time. The delay depends on your raspberry type and what is running on it but a few milliseconds delay , lets say 10, is good practice. You also can test with deferent values to see how it goes.

 

[enallon]

I'm starting to work with the relays for this board. I'd like to relay 24VDC using these and have an external power supply. Where would I connect the power supply to use this external source?

 

[alexburcea]

The card has 2 connectors one for 4 relays. The connectors contains one common and 4 channels. You should connect one of the external power source pin (for example +) to the common (marked "COM" on the back of the card), the second power source terminal (-) to the negative terminal of your load and the positive terminal of the load to the relay (REL 1...8 marked pins).