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Replace the battery in a Jabra Evolve 65 headset

Jan Cumps — Sun, 07 Jul 2024 16:30:22 GMT

The headset of my partner stopped working. The battery doesn't hold charge anymore. Jabra doesn't provide replacement components. But the accu used (AHB472625PLT) is available from cellphone repair sites.

I found the "take it apart" instruction on IFIXIT. It's not hard, but you need a little courage.

On the shell that has the microphone, find the hinge that's on the opposite side of the on-off switch. Put a screwdriver just next to it, and pry the shell off its hinge. The "eye" on that side is made to allow it to be removed that way.

Once I received my replacement (12 € delivered from Germany), I'll solder it in, and test...

Which 6DOF IMUs should I be considering for my wearable smart glove? (details below)

bhaveshbytes — Wed, 04 Oct 2017 19:39:21 GMT

Hello element14 community!

I am working on a smart glove that picks up hand movements, and sends them to a processor for gesture recognition. I am looking for two 6DOF IMUs on the glove:

An IMU on the index finger
An IMU on the back of the palm (the "dorsum" of the hand)

The reason that the IMUs should be 6DOF and not 9DOF is that I will put a separate, common magnetometer on the wrist for global orientation.

Furthermore, I strongly prefer that the IMU has either a) on-board sensor fusion, or b) easy to use sensor fusion library for ARM Cortex-M series.

Here are a few I've found so far, although I'm hesitant to buy them because their devkits are so expensive:

Bosch BMI055 (https://www.bosch-sensortec.com/bst/products/all_products/bmi055)
Bosch BMI160 (https://www.bosch-sensortec.com/bst/products/all_products/bmi160)
Invensense ICM-20689 (https://www.invensense.com/products/motion-tracking/6-axis/icm-20689/)

The reason I am not going for the MPU6050 from Invensense is that it looks like they are going to stop manufacturing it soon, and I will need large quantities in about a year's time.

Finally, the most important part: Here are some of the key specs I would like this IMU to fulfill:

200°/s or more gyro rate
On-board sensor fusion OR easy to use, good sensor fusion library for ARM Cortex-M
±10g or more accelerometer range
200Hz or more sampling rate
-40°C to 85°C or better temperature range
5mm x 5mm or smaller package

Hopefully that's enough info to get started. Please shoot me your recommendations, I would really appreciate it and it'll take this project one step further along the painful part selection phase. Thank you, and feel free to comment with any questions or requests for clarification (I might have overlooked something).

Bhavesh Kakwani

Anyone have any experience with AndersDX displays?

Former Member — Sun, 20 Mar 2016 12:23:42 GMT

AndersDX make a display that I am interested in using for a smartwatch project (their round touchscreen TFT Displays | Product Catalogue | andersDX.com ) as it is the only SPI based round display I can find. Has anyone had any experience with them for small quantities, as I realise that they probably want to sell in bulk to large companies, as opposed to selling single units

Would you pay for a strap for the Apple watch?

clem57 — Fri, 03 Jul 2015 20:01:25 GMT

I got an email today with a link: Reserve Strap | Reserve Strap. Being curious what this is for, I checked it out to see it. But for 249$? Then I saw http://post.jagran.com/New-USD-249-Reserve-Strap-to-boost-Apple-Watch-battery-by-30-hours-Reports-1435322808. Now I am a bit skeptical so please set me straight. Would you buy?

Clem

Sunglasses with Internet capability

Former Member — Thu, 15 Jan 2015 16:11:36 GMT

My idea is to have a pair of sunglasses with lens that dim when you press a button on the side of them. Then a pair of mini projectors in the nose piece project the images onto your lens. Also in the nose piece would be a camera and a IR sensor so you could use your hands to interact with the glasses using virtual reality.

3D Printed Dress...I would totally wear this....

summerella — Thu, 18 Dec 2014 17:36:48 GMT

Wearables are sometimes thought of as still a bit abstract, but here is something I would wear now...if it wasn't $3,000 USD. Although made of plastic, it seems to have a great flow and more fabric-like movement.

Do you think we will move towards 3D printed clothing (clothes could be customized and cut exactly to fit), or will we continue with traditional fabric production and tailoring?

This 3D printed plastic dress flows like fabric - CNN.com

"The design studio Nervous System has created a novel process that allows a 3-D printed dress to move and sway like real fabric. The bespoke software behind it, called Kinematics, combines origami techniques with novel approaches to 3-D printing, pushing the technology's limits.

Instead of pinning fabric to a dress form, a Kinematics garment starts as a 3-D model in a CAD program. Kinematics breaks the model down into tessellated, triangular segments of varying sizes. Designers can control the size, placement, and quantity of the triangles in a Javascript-based design tool and preview how the changes will impact the polygonal pinafore. Once the designer is satisfied, algorithms add hinges to the triangles uniting the garment into a single piece and compress the design into the smallest possible shape to optimise the printing process, often reducing the volume by 85 percent."

Read the rest of this WIRED article on This 3D printed plastic dress flows like fabric - CNN.com

Smart Puppet

Workshopshed — Thu, 04 Dec 2014 16:53:48 GMT

I'm not connected with this project in anyway, I am sharing it because of the use of smart materials and simple electronics.

https://www.kickstarter.com/projects/lostvalues/smart-puppet-build-and-learn-interactive-soft-elec

Gamer Creates a Tetris Tee That’s Actually Playable

summerella — Tue, 22 Jul 2014 15:28:53 GMT

https://www.yahoo.com/tech/gamer-creates-a-tetris-tee-thats-actually-playable-91388654794.html