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Substitutes for out-of-stock items?
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Please be positive and constructive with your questions and comments.

Substitutes for out-of-stock items?

by Ekoch on Mon Mar 02, 2020 2:59 pm

Can you recommend substitutes for the following out-of-stock items for the bone conduction box? This is a link to the box:

https://learn.adafruit.com/3d-printed-b ... sducer-box

1) Breadboard-friendly SPDT Slide Switch
2) Lithium Ion Polymer Battery - 3.7v 150mAh

Thanks!

Ekoch
 
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Re: Substitutes for out-of-stock items?

by adafruit_support_mike on Wed Mar 04, 2020 5:33 am

Ekoch wrote:1) Breadboard-friendly SPDT Slide Switch

You can replace this with any kind of on/off switch. The slide switch just happens to be small.

https://www.adafruit.com/product/1092


Ekoch wrote:2) Lithium Ion Polymer Battery - 3.7v 150mAh

The LiPo's 150mAh rating isn't critical to the project. You can use any other size:

https://www.adafruit.com/category/574

It looks like there are a few values below 500mAh that are currently in stock.

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Re: Substitutes for out-of-stock items?

by Ekoch on Wed Mar 04, 2020 2:22 pm

Thank you for your reply! Will the substitutes fit inside of the 3D printed bone conductor box?

Ekoch
 
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Re: Substitutes for out-of-stock items?

by adafruit_support_bill on Wed Mar 04, 2020 3:08 pm

The box in the tutorial is sized to fit the recommended parts. So unless you have replacements that are the same size or smaller, you would need to revise the box design to fit.

If you subscribe for notifications for the out-of-stock parts, you will get an email as soon as they are available.

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Re: Substitutes for out-of-stock items?

by Ekoch on Wed Mar 04, 2020 5:01 pm

Thanks! I subscribed for email updates on both parts.
Thanks!

Ekoch
 
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Re: Substitutes for out-of-stock items?

by Ekoch on Mon May 11, 2020 2:59 pm

Hi!
I started working on the Bone Conduction Transducer Box project using all the recommended parts, substituting out-of-stock items recommended here. I realize that I’m missing one of the white plastic couplers needed. I also need advice on how to solder the substitute tactile switch button as there are only 2 connection points instead of 3 on the original.
Please advise!
Thank you!
Attachments
98C76CA1-69D9-4DBF-BE15-2F48B2634B4F.jpeg
Project diagram
98C76CA1-69D9-4DBF-BE15-2F48B2634B4F.jpeg (202.33 KiB) Viewed 89 times
EB1EE845-C477-48A0-93AD-990AE266D216.jpeg
Tactile on/off switch button sub for out-of-stock toggle switch
EB1EE845-C477-48A0-93AD-990AE266D216.jpeg (49.13 KiB) Viewed 89 times
F52913B4-218D-4373-BCB6-3FCFFAE83F2B.jpeg
Project parts as recommended by Adafruit
F52913B4-218D-4373-BCB6-3FCFFAE83F2B.jpeg (28.83 KiB) Viewed 89 times

Ekoch
 
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Re: Substitutes for out-of-stock items?

by adafruit_support_bill on Mon May 11, 2020 3:13 pm

Make sure that you have an on/off switch. That onelooks like a momentary switch to me. A momentary switch is only on for as long as you press the button. You need and on/off switch to control power from the LiPo - the most common types of on/off switches are toggle, slide or push-on/push-off like this one: https://www.adafruit.com/product/3870

In any case with only 2 pins and 2 connections to make, there is no way to go wrong. Just connect one wire to each pin.

For the connector, we have these: https://www.adafruit.com/product/3814
DigiKey should have them in stock.

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Re: Substitutes for out-of-stock items?

by Ekoch on Mon May 11, 2020 3:43 pm

So the previously recommended on/off switch was not the right one? Also, shouldn’t the connector have been included in the original assembly kit that I ordered from your site? Not sure why I should have to pay again for mistakes made on Adafruit’s end. Is there anything you can do?
Thanks!

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Re: Substitutes for out-of-stock items?

by adafruit_support_bill on Mon May 11, 2020 4:06 pm

The previously mentioned replacement was this on/off switch. : https://www.adafruit.com/product/1092
Image

The one in your photo looks more like this momentary switch: https://www.adafruit.com/product/1489
Image

Also, shouldn’t the connector have been included in the original assembly kit that I ordered from your site?

Not sure what kit you are referring to. We do not sell a kit for this project. In any case, the extra connector shown in the diagram is not required. You can wire the switch directly to the board.

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Re: Substitutes for out-of-stock items?

by Ekoch on Mon May 11, 2020 5:30 pm

It wasn’t technically a kit but I ordered from the list provided on Adafruit.

“Parts
Amplifier board - we suggest the MAX98306 or TS2012
Bone Conductor Transducer
150mAh Lithium Ion Polymer Battery
Stereo Headphone Jack
Slide Switch
JST Battery Ext. Cable”

I had to substitute the slide switch that was out-of-stock and, yes, the switch recommended on 3/4/2020 was the one you included Inow out-of-stock) but I was looking for a small one that might fit in the 3D box and Mike said, “You can replace this with any kind of on/off switch. The slide switch just happens to be small.” I didn’t realize that the switch I ordered only stayed on when pressed. If I purchased the mini on/off push-button switch, product ID 3870, do I solder the wires to each metal loop?
Thanks!

Ekoch
 
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Re: Substitutes for out-of-stock items?

by adafruit_support_bill on Mon May 11, 2020 6:17 pm

Yes. One wire to each of the metal tabs.

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Re: Substitutes for out-of-stock items?

by Ekoch on Thu May 21, 2020 11:12 pm

Hi again!
Still working on the bone conductor project. I’m not sure how to connect the wires on the Breadboard-Friendly 3.5mm Stereo Headphone Jack. The photo online (attached) shows some kind of black wrap on the end of the wires where they connect to the metal prongs on the jack. Also, it’s not clear if the wires are soldered to both metal pins on the jack or just the outermost right and left pins as well as the middle pin.
Thanks, as always!
Attachments
C63ACACF-C961-49E9-B324-CA153719EFCF.jpeg
Adafruit wiring pic
C63ACACF-C961-49E9-B324-CA153719EFCF.jpeg (237.97 KiB) Viewed 74 times
CC2866EC-3954-408F-BA10-145F46ACA1F9.jpeg
My setup so far
CC2866EC-3954-408F-BA10-145F46ACA1F9.jpeg (135.29 KiB) Viewed 74 times

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Re: Substitutes for out-of-stock items?

by adafruit_support_bill on Fri May 22, 2020 5:46 am

The black stuff is heat-shrink tubing. It is not essential, but it helps to insulate and protect the solder joints. https://www.adafruit.com/product/344
You could also use electrical tape for the same purpose.

The wires are soldered to the two outermost pins and the center pin

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Re: Substitutes for out-of-stock items?

by Ekoch on Fri May 22, 2020 12:08 pm

I’ve used heat-shrinking before. So the two sets of outer prongs should not be touching?

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Re: Substitutes for out-of-stock items?

by adafruit_support_bill on Fri May 22, 2020 12:23 pm

The project is only using the right channel of the amplifier. If you have a stereo signal from your sound source, you can tie the two outer prongs together to combine the R+ and L+ signals into a single mono signal.

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Please be positive and constructive with your questions and comments.