E-ink experience

-

Not yet very affordable, but better than I expected. This is my opinion after buying an ebook reader. Mine is branded Papyre 6.1 but it's named Hanlin v3 in other countries. It's manufactured in China (what a surprise!) and it runs Linux (it has an ARM processor).

Definitely worth watching at. However I have not used it for more than a few minutes so I do not have an opinion about the long term usefulness of the device. But if it delivers what I've seen in the tests it is more than worth it.

Now I'm sorry but I'm back to reading, please do not disturb.

Update:

The reading experience has been better than expected. And the availability of contents has also been better than expected.

What I have not find, however, is a shop with the latest books. But that only meant some books cannot be bought but they might be available somewhere ...

For example, I was reading a paper copy of this book in Spanish. And I had no trouble finding an electronic version.

There is a cheaper electronic book in Spain called iLiber, but it does not come with a cover, earbuds or MP3 support.

Comments

vierito5 said…
Uhmm I don't think I will ever be able to fully switch to one of those intead of the paper ones.

Nowadays I'm forced to read a lot from big PDFs but I've not been able to read a whole book on a screen.

To me, it seems more a hacking toy, to make it do thing that it wasn't supossed to rather than an eBook reader hehehe.

Let's us know what you think after some weeks of use!
4:24 pm
misan said…
I thought the same way a you. That is why I bought the reader in a shop with a good return policy. But now I'm sold.

The reading experience has been better than expected. And the availability of contents has also been better than expected.

What I have not find, however, is a shop with the latest books. But that only meant some books cannot be bought but they might be available somewhere ...

For example, I was reading this book in Spanish. And I had not trouble finding an electronic version.

There is a cheaper electronic book in Spain called iLiber, but it does not come with a cover, earbuds or MP3 support.
10:14 am
Post a Comment

Popular posts from this blog

VFD control with Arduino using RS485 link

-
Image
Variable Frequency Drives ( VFD ) allow the control of spindles so speed can accurately be controlled and a detailed acceleration profile for the spindle and reverse rotation can all be handled. In essence a VFD is an three phase inverter for three-phase AC motor. I am using a popular (I mean cheap) Chinese VFD and though the reference manual is not great, I could see there is a built-in RS-485 port. I usually control the start, stop and speed selection using the keyboard on the unit but I thought it will be more useful if I could control everything from the same Arduino is doing our CNC table control. Some cheap RS-485 off eBay and some lines of code later, I can start, stop and change the speed from an Arduino. What a cool thing to have! Some configuration of your VFD are needed before you can use it like that.  You need to set PD163=1 (I am using address 1 in the code). PD=164=1 (for setting serial to 9600bps) and PD165=0 (for using ASCII and 8N1 character format)
Read more

How to get sinusoidal s-curve for a stepper motor

-
Image
After some experimentation, and delving a bit into the math of motion, I realized there can be a significant difference on the motion of a machine by just making small changes. A common and popular approach to smooth one axis of motion is to use a trapezoidal speed pattern, where acceleration and deceleration are uniformly accelerated movements (aka constant acceleration motion) separated by a portion happening at cruising speed. The problem comes with the fact that, while that approach is simple to understand and to code, it does contain sudden changes in the acceleration, that show as spikes on the acceleration derivative, called jerk. These sudden changes in the acceleration translate into undesired vibration in our machines. Most of that can be eliminated by selecting a motion pattern that does not contain sudden changes of acceleration. If we chose a mathematical function for our speed whose second derivative is continuous, then we reduce system vibration quite a lot. One ma
Read more

Importing OpenSCAD designs into Onshape

-
Image
After using Onshape CAD software for a while I am really fond of it. So one natural thing to do, specially once they have released the Instructor's kit is to start using it in the classroom too. But one thing I was not so sure how to do was to use old designs I made using OpenSCAD. It does not mean I am completely quitting using OpenSCAD but suddenly I can see I can do assemblies in Onshape that will look quite nice for showing and documentation purposes if only I could easily import from OpenSCAD. I am glad to report that the route OpenSCAD --> FreeCAD --> Onshape worked brilliantly. Even more when a few tricks were applied. While some people suggest to import CSG files from OpenSCAD to FreeCAD, I have had more success by directly importing SCAD files into FreeCAD. One trick that worked well for me was to get rid of $fn references, so now circles become real circles (or cylinders) in FreeCAD. If a part keeps some $fn references then your cylinders or circles wi
Read more