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Ever since the Kindle eReader came out, we#39;ve been wanting a nice small graphical eInk display that is easy to use with a microcontroller. And finally our desires have been fulfilled with the rePaper 2.7 development board from Pervasive Displays! We#39;re excited to offer this very interesting display breakout for hackers who want to start playing with small eInk displays.
This kit comes with a driver board that is powered from 3V and has level shifting on all the I/O pins so it can be used with 5V microcontrollers such as the Arduino. The PCB also has a lot of driver circuitry required to keep the display running smoothly such a temperature sensor, FLASH memory and ZIF socket. All signals are broken out to a 20 male socket header on the left. A 20 pin socket/socket cable is included to make wiring easier and there#39;s also some extra-long header so you can plug these wires into Arduino header or a breadboard.
The display is 2.7 diagonal and 264 x 176 resolution true eInk graphical display. These are intended for use as small dynamic signage in grocery stores since a barcode displayed on it can be scanned by a laser barcode-reader. The display does not require any power to keep the image and will stay #39;on#39; without any power connection for many days before slowly fading. Of course, its also daylight readable and is very high contrast. This makes it excellent for data-logging applications, outdoor displays, or any other ultra-low power usages
The good news is that rePaper/PDI have provided a suite of example code for Arduino UNO/Leonardo as well as the MSP430 Launchpad and also have a site with some documentation on how to wire up the displays and datasheets. However, please note: the displays are quite large pixel-wise and to dynamically write to the display requires 3K of RAM - more than the Arduino Uno or Leo/Launchpad so for those boards, the example code only displays what is stored in a 8-pin FLASH chip in the devboard. (By default that FLASH contains a picture of a cat and some imaged text, see photos above)
At this time, neither the Arduino UNO or Mega can use the GFX-library for a display of this size. We#39;ll try to fix PDI#39;s code to support the Mega, but there#39;s no ETA.
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ROBOT DOMESTICI SRL - Via Cornelio Labeone, 70 - 00174 Roma (RM)
Partita IVA IT15791431008 - REA di Roma n. RM 1614298
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