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View Full Version : Very cool E-Ink display shield that could be converted to the Teensy 3



t3andy
03-19-2013, 11:09 PM
Very cool E-Ink display shield that could be converted to the Teensy 3

E-Ink Display Shield Features:

High resolution
Low power consumption <---------<<<<
Wide viewing angle
Four grey level modes
Maintains a clear display in the power-off state <---<<<<
Supports characters of 175 languages

http://www.seeedstudio.com/wiki/E-ink_Display_Shield
http://www.seeedstudio.com/depot/eink-display-shield-p-1374.html?cPath=132_134

ZTiK.nl
03-20-2013, 01:16 AM
Thanks for the links (both these, and the other things you've linked like this (http://forum.pjrc.com/threads/17940-Black-Hornet-Nano-UAV?p=21885#post21885)).

I do not always reply because I don't have anything useful to add, but I do wanted to let you know I like reading these posts!
All kind of new possibilities jump into mind I otherwise never would have thought of :)

Do you happen to know if bigger versions of the E-Ink display are in the pipeline?
I would instantly buy it if it were A5 paper format (148mm×210mm or 5.8"×8.3" inch).

t3andy
03-20-2013, 01:35 AM
Do you happen to know if bigger versions of the E-Ink display are in the pipeline?

Seeedstudio is working on a larger screen. Adafruit and Sparkfun are way behind in the E-INK tech curve.

These E-Ink displays are expensive and the refresh takes forever but its sunlight readable, very low power and keeps whatever was written to it last even without power!

Our application is to build a T3 mini RF terminal with mini keyboard.

ZTiK.nl
03-20-2013, 02:21 AM
Thank you, thats good to hear.
I do hope this will get picked up rather sooner than later by other manufacturers which hopefully brings the average price down a bit.

It sounds awesome, I read about this project in this post (http://forum.pjrc.com/threads/22145-Dymo-Stylus-Tact-Alpha-Keyboard-for-Teensy-3) (no, I'm not stalking you...).
It appears you (and your family/neighbours) are very busy, working on a lot of interesting stuff.

t3andy
03-20-2013, 02:43 AM
With the mini tact keyboard done and the very low power E-INK display, the only stumbling block is reducing the 27 ma. power consumption on the Teensy 3. There is no "low power library" ported or re-designed yet, so we are looking at RTOS's to reduce the power consumption. Our end device is a RF Digital antenna transceiver which, in standby or receive mode, uses even more power. Even though we are using a 2 amp Lithium battery and charger (Lipo Rider Pro), any power consumption we can save will keep our RF transceivers running longer. If we can't reduce the power, we might have to drop back to the Olimex super low power 328P and use the low power library (Enerlib for Arduino) for the Arduino.

http://www.rfdigital.com/?targetpage=listing&filternordic=RFDP8&filtercategory=RFDANT
https://www.olimex.com/Products/Duino/AVR/OLIMEXINO-328/
http://www.seeedstudio.com/wiki/Lipo_Rider_Pro
http://www.engblaze.com/low-power-libraries-for-arduino-control-sleep-with-single-function-calls/
http://playground.arduino.cc/Code/Enerlib


BTW ... we are hard core hackers and hobbyist. Our projects we design are not made for commercial purposes.
Whatever we post here is to inform, to help others and to keep them from wasting their resources $$$$.

t3andy
03-20-2013, 10:54 AM
Back to the Seeedstudio E-Ink Display Shield ...

Seeed made their first production run of 50 units and we were able to obtain #9 before the stock ran out.:D

We found a major design flaw in this E-Ink shield. The designers connected the SPI, needed by the E-Ink complex driver electronics, only
to the ISP 6 pin connector. :confused: Which means, if you don't have an ISP connector, on your Arduino, this shield will NOT work!
We suggested that they reconnect the ISP SPI also to digital pins D11, D12 and D13. A workaround is to solder wire wrap wire from the ISP connecter to the digital pins (above).:cool:

http://www.seeedstudio.com/forum/viewtopic.php?f=23&t=4360

This E-Ink display shield provided low power, (without power hungry backlighting) clean, crisp, 84 characters for our portable battery operated design application. :cool: