![]() 8" eInk Pearl with front-light for $250 (I've heard great things about this company too) I don't have one but I've heard nothing but good things about support from Onyx and let's be honest making an e-reader isn't the most complicated thing out there so odds are you won't need much tech support (you can buy a DX 9.7" replacement screen for ~65 and drive it with a uC almost trivially easily).Įdit: 8" for 179$ (not "genuine" e-Ink(tm)) You get the same Paperwhite tech, the ability to jot notes down with a stylus, and a significantly bigger screen. I mean, someone in the 'maker community' has a high probability of having some difficulty, but my 12 year old cousin could build the driver on protoboard, no issues, and it's not like he's worked through 2nd order diff non-homogeneous eq's ). That's the only 'strange' thing about it is the voltages as you mentioned (well that and the somewhat rare flat-flex ribbon used). It needs a jellybean boost converter to get up to the +/- 25V a few tens of mA. This guy did it for what looks to be under 10 bucks in parts. Some LT standard (not as standard as the LM317 or 7805, but close) will switch both rails no sweat, all day, then use 2 standard LDOs will get get your -25 up to -15 and regulate your +25 down to +15. (I don't like his value choices for those caps around U4 and U5, but the rest of the design is so well done and I'd imagine he used SPICE and tested every node, so I'm going to just defer to his design, since I'm not an EE haha). Everything else are jellybeans you'll have lying around (except maybe those inductors). The only thing you have to watch out for is quiescent current, not only for the obvious reasons (leakage = bad), but also because even a minimal amount of voltage drop 'across the FET' will fade out the image, so its double bad. (Each pixel with the characteristics of an N channel MOSFET.) Acting as the source on the FET - continuously driving "on" for each "frame render" (it's just latched in from a shift register), and the horizontal pixels corresponds to the vertical pixels (which is just a shift register pushing data for each render). If you have issues with that guy's build, this dude consistently has some of the best documented hardware hacks ever. Those two sources in aggregate and a Saturday should be all you need for a one off.Arta Tech has been developing e-readers for a number of years and have scored a major victory with the InkBook Prime. The overall build quality premium device is really solid and it won a Red Dot award for industrial design. The InkBook Prime features a six inch e-Ink Carta touchscreen with a resolution of 1024 x 758 and 212 PPI. The screen is completely flush with the bezel, this makes it easier to use the touchscreen. ![]() You can read in the dark via the front-lit display and it has 8 LED lights, which provides great illumination that is evenly distributed across the screen. Many companies have abandoned manual page turn buttons and rely exclusively on the touchscreen to turn the pages of an e-book. The Prime has buttons on the left and right side, which means you can hold it with one hand and quickly flip pages. The back of the Prime has a grooved contour that is meant to assist in holding it with one hand. I think page turn buttons are tremendous on e-readers. There is a large demographic of people who ride public transit and are holding onto a pole or guard rail with one hand and read with the other. Underneath the hood is a Quad-Core Cortex A9 up to 1.6 GHz processor and 512MB of RAM. There is 8GB of internal storage, which i s double the standard amount that ships with most e-readers. This e-reader is also utilizing Android 4.2.2 and comes with the Inkbook app store, with around 16 reading apps.If you feel like enhancing it further you can slot in a 32GB SD Card. It has Wi-Fi and Bluetooth and a 2000 mAh battery, and it weighs 165 grams and measures 159 x 114 x 9 mm. Underneath the hood is a Quad-Core Cortex A9 up to 1.6 GHz processor, 512MB of RAM and 8GB of storage space, with a microSD card slot for expansion. There is a all new color temperature system in the Prime, it has blue and white lights, instead of candlelight orange, which all e-readers were using in 2017 and most of 2018. It also helps contain the LED lights for the front-lit display and ensures that there will be no light spillage. The screen is flush with the bezel, which makes it easier to tap and gesture on the screen. The Prime features a six inch capacitive touchscreen display with E Ink Carta with a resolution of 1448 x 1072 pixels and 300 dpi. It is currently retailing for €139 on their website and is primarily competing against the Amazon Kindle Paperwhite, Nook Glowlight 3 and the Kobo Clara HD. The Inkbook Prime is the most successful e-reader that Arta Tech has ever made and the company has just refreshed it with a new color temperature screen and HD resolution for 2018.
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