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chrisb2 / pi_ina219

This Python library supports the INA219 voltage, current and power monitor from Texas Instruments with a Raspberry Pi using the I2C bus. The intent of the library is to make it easy to use the quite complex functionality of this sensor.
MIT License
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Guide until get data of voltage and current ina219 using raspberrypi #10

Closed abeng94 closed 6 years ago

abeng94 commented 6 years ago

okay this LED in DIM condition (10% of brightness) -voltage - below 1 V Led in full brightness (100% of brightness) -voltage - above 5V

I measure using multimeter.

can u guide me until I get this value using ina219. I follow all video and this instruction . but get some error.

that error say the python cant find that lib.

thank you

abeng94 commented 6 years ago

this my wiring circuit ff

chrisb2 commented 6 years ago

It sounds like you executed your Python script and got an error like: Traceback (most recent call last): File "tmp.py", line 2, in <module> from ina219 import INA219 ImportError: No module named ina219 If so it seems like you have not installed the ina219 library using Python pip.

If you are using Python 2 to execute your script (python command), then you should install with: sudo pip install pi-ina219 you can check if its already installed with: pip list | grep ina219

If you are using Python 3 to execute your script (python3 command), then you should install with: sudo pip3 install pi-ina219 you can check if its already installed with: pip3 list | grep ina219

regards, Chris

chrisb2 commented 6 years ago

Closing for the moment, if you have further questions, please re-open.

langalibalele commented 2 years ago

I have re-installed your library several times. No matter which way I call it, I get ModuleNotFoundError: No module named 'INA219'

OK, so I found out what the problem was. I named my file ina219.py. The I renamed my file to voltage_ina219.py and it stopped throwing this error. But then I got this error: ImportError: bad magic number in 'ina219': b'\x03\xf3\r\n' I solved it using: https://stackoverflow.com/questions/52477683/importerror-bad-magic-number-in-time-b-x03-xf3-r-n-in-django

2022-06-02-222428_1920x1080_scrot

chrisb2 commented 2 years ago

Strange I agree. A couple of questions.

What Raspberry Pi is this? What version of Raspbian is this? If you execute the following what version do you see?

python3 -V

Chris

On Fri, Jun 3, 2022 at 8:33 AM langalibalele @.***> wrote:

I have re-installed your library several times. No matter which way I call it, I get ModuleNotFoundError: No module named 'INA219'

So frustrating! [image: 2022-06-02-222428_1920x1080_scrot] https://user-images.githubusercontent.com/13710760/171733109-e8a8e15a-c8b2-4a78-968d-77aa6ac467ed.png

— Reply to this email directly, view it on GitHub https://github.com/chrisb2/pi_ina219/issues/10#issuecomment-1145314684, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAXR2V75RYX6X2J5TUBQUKTVNELDLANCNFSM4FAC7EMA . You are receiving this because you modified the open/close state.Message ID: @.***>

langalibalele commented 2 years ago

Hallo Chris,

Raspbian is up to date. I have a Raspberry 4 model B. I am using python v3. The problem was I named my python file ina219.py. I only figured this out after reading many forum posts ☹.

Thanks for answering.

Regards, Dirk

Von: Chris Borrill @.> Gesendet: Samstag, 4. Juni 2022 07:03 An: chrisb2/pi_ina219 @.> Cc: Neethling, Dirk Johan Dr. HOCHTIEF @.>; Comment @.> Betreff: Re: [chrisb2/pi_ina219] Guide until get data of voltage and current ina219 using raspberrypi (#10)

[EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. Strange I agree. A couple of questions.

What Raspberry Pi is this? What version of Raspbian is this? If you execute the following what version do you see?

python3 -V

Chris

On Fri, Jun 3, 2022 at 8:33 AM langalibalele @.<mailto:@.>> wrote:

I have re-installed your library several times. No matter which way I call it, I get ModuleNotFoundError: No module named 'INA219'

So frustrating! [image: 2022-06-02-222428_1920x1080_scrot] https://user-images.githubusercontent.com/13710760/171733109-e8a8e15a-c8b2-4a78-968d-77aa6ac467ed.png

— Reply to this email directly, view it on GitHub https://github.com/chrisb2/pi_ina219/issues/10#issuecomment-1145314684, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAXR2V75RYX6X2J5TUBQUKTVNELDLANCNFSM4FAC7EMA . You are receiving this because you modified the open/close state.Message ID: @.<mailto:@.>>

— Reply to this email directly, view it on GitHubhttps://github.com/chrisb2/pi_ina219/issues/10#issuecomment-1146536447, or unsubscribehttps://github.com/notifications/unsubscribe-auth/ADITLKEHISXWQYF4JM3KOODVNLPQRANCNFSM4FAC7EMA. You are receiving this because you commented.Message ID: @.**@.>>

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