bahelan23
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Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

HELP:Dealing with Diabetes Project

Postby bahelan23 » Thu Dec 13, 2018 8:06 am

I have redid the breadboard several time and the pump will still not turn on
I have tried every solution posted: Rotating the potentiates, changing the resistors, troubleshooting etc....
we know that the pump works because we tried several times to turn the pump on using batteries.
Are there any other ways to get the pump working.

LeungWilley
Expert
Posts: 372
Joined: Mon Jan 12, 2009 11:15 pm
Occupation: Electrical Engineer

Re: HELP:Dealing with Diabetes Project

Postby LeungWilley » Thu Dec 13, 2018 7:26 pm

Hi,
I am very sorry to hear that you are running into issues with the project.
Is there any way that you can post a picture of the breadboard that you have built please? We may be able to spot / identify the issues using the picture and give you better feedback.

Thanks!
Willey

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Fri Dec 14, 2018 3:08 pm

I won't let me attach the image. It says that there is an error when I tried to add the image.Is there another way I can send it to you.

LeungWilley
Expert
Posts: 372
Joined: Mon Jan 12, 2009 11:15 pm
Occupation: Electrical Engineer

Re: HELP:Dealing with Diabetes Project

Postby LeungWilley » Fri Dec 14, 2018 6:23 pm

Hi,
Can you try attaching the picture as a pdf? (You can "print" the picture to a pdf file. Or insert it into MS Word)

Thanks!
Willey

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Fri Dec 14, 2018 6:33 pm

I printed it to PDF
It said that the image is to large

LeungWilley
Expert
Posts: 372
Joined: Mon Jan 12, 2009 11:15 pm
Occupation: Electrical Engineer

Re: HELP:Dealing with Diabetes Project

Postby LeungWilley » Fri Dec 14, 2018 7:30 pm

Hi,
So sorry to hear that. Can you adjust the resolution of the picture down so that we can make the file size smaller?
Willey

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Sat Dec 15, 2018 8:06 am

IMG_7913(Breadboard2).pdf
Breadboard pic
(13.92 KiB) Downloaded 50 times

LeungWilley
Expert
Posts: 372
Joined: Mon Jan 12, 2009 11:15 pm
Occupation: Electrical Engineer

Re: HELP:Dealing with Diabetes Project

Postby LeungWilley » Sat Dec 15, 2018 3:32 pm

Hi,
I am sorry about this but the image you posted is too small.
Can you do a picture of the breadboard (in color) and one of the overall circuit like the one you posted please?

(Sorry, I just thought of this: Please take a look at the following links for how to reduce picture size)
https://support.office.com/en-us/article/reduce-the-file-size-of-a-picture-in-microsoft-office-8db7211c-d958-457c-babd-194109eb9535

There are also a number of youtube instruction video on how to do this:
https://www.youtube.com/watch?v=hAMplAHLfSo

Thanks!
Willey

AmyCowen
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Re: HELP:Dealing with Diabetes Project

Postby AmyCowen » Mon Dec 17, 2018 9:58 am

Hi - Being able to see a really clear and close up photo looking down at the breadboard will help Willey (and other Experts) troubleshoot with you. If you can take a few photos, you can email them to scibuddy@sciencebuddies.org, and I'll make sure they get passed to Willey.

Amy
Science Buddies


[I've forwarded the photos you sent to Willey.]

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Mon Dec 17, 2018 4:13 pm

Thank you
I hope he can find the issue

LeungWilley
Expert
Posts: 372
Joined: Mon Jan 12, 2009 11:15 pm
Occupation: Electrical Engineer

Re: HELP:Dealing with Diabetes Project

Postby LeungWilley » Mon Dec 17, 2018 7:29 pm

Hi,
Thank you for the pictures! They really helped. I looked at the circuit board and it looks to me that you have everything connected correctly. I do have a question on the battery pack though. In the picture, IMG_7370, I am seeing only 3 batteries. Can you confirm that when you have all 8 batteries installed that the pump still won't run please? (The circuit needs the full 12V (8 * 1.5V per battery) to operate).

Thanks!
Willey

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Mon Dec 17, 2018 8:04 pm

Yes the pump does not work with all eight batteries. We just take one battery out when we are not using the circuit for safety purposes.
***If all the wiring is correct what should we do to get the pump to work when connected to the breadboard.***
Also, for the neutralized solution can we just use water.

LeungWilley
Expert
Posts: 372
Joined: Mon Jan 12, 2009 11:15 pm
Occupation: Electrical Engineer

Re: HELP:Dealing with Diabetes Project

Postby LeungWilley » Mon Dec 17, 2018 8:19 pm

Hmm... that's strange. Sorry, I forgot to ask one more question. There were two picture of the breadboard. The short one looks to have the correct circuit. The longer breadboard, IMG_7362, show the yellow wire going to 4d? (instead of 1d as shown in the short breadboard.) Would you happen to know why that change was made? Can you try moving that back to 1d?

In terms of next step, do you have access to a Digital multi-meter? we will need to take some measurement and see where the circuit may be giving us trouble. If that's not available, we may need to start switching out components.

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Tue Dec 18, 2018 11:52 am

We are using the short breadboard. We redid the breadboard several times, so we are going with the short breadboard.

bahelan23
Posts: 22
Joined: Thu Dec 13, 2018 8:02 am
Occupation: Student

Re: HELP:Dealing with Diabetes Project

Postby bahelan23 » Thu Dec 20, 2018 11:41 am

Also, we do have access to a digital multi meter. What would be our next steps.


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