Adafruit 2.9" Grayscale eInk / ePaper Display FeatherWi

Adafruit 2.9" Grayscale eInk / ePaper Di

Adafruit

Adafruit 2.9" Grayscale eInk / ePaper Display FeatherWing

Item No.: AF4777

HAN: 4777

EAN: 4060137067556

HS Code: 8531202090

Herkunftsland: US

Lagerstufe: Maintain

32,34 $

per pcs

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Net: 27,18 $

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Extended Services for Displays:
Customized solutions
Alternative solutions
Industrial PC solutions

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Product Description

DESCRIPTION

Easy e-paper comes to your Feather with this breakout that's designed to make it a breeze to add a monochrome eInk display. Chances are you've seen one of those new-fangled 'e-readers' like the Kindle or Nook. They have gigantic electronic paper 'static' displays - that means the image stays on the display even when power is completely disconnected. The image is also high contrast and very daylight readable. It really does look just like printed paper!

We've liked these displays for a long time, so wouldn't a custom e-paper FeatherWing with buttons make a ton of sense? This 'Wing is tested to work with all of our Feathers, from the ESP8266 to the M0. It has built in memory buffering so it can work with chips as small as the '32u4 and '328. It does use a lot of pins: the 3 SPI pins, and up to 4 control pins to manage the SD card slot and SRAM. Plus 3 optional buttons are available for Feathers with available pins.

The FeatherWing sports a 2.9" grayscale display with 296x128 pixels. Each pixel can be white, light gray, dark gray or black. Compared to 'tri-color' displays with a red pigment, this display takes a lot less time to update, only about a second instead of 15 seconds!

Using our CircuitPython or Arduino libraries, you can create a 'frame buffer' with what pixels you want to have activated and then write that out to the display. Most simple breakouts leave it at that. But if you do the math, 296 x 128 pixels x 2-bits-per-pixel = 9.5 KBytes. Which won't fit into many microcontroller memories. Heck, even if you do have 32KB of RAM, why waste 9KB?

So we did you a favor and tossed a small SRAM chip on the back. This chip shares the SPI port the eInk display uses, so you only need one extra pin. And, no more frame-buffering! You can use the SRAM to set up whatever you want to display, then shuffle data from SRAM to eInk when you're ready. The library we wrote does all the work for you, you can just interface with it as if it were an Adafruit_GFX compatible display.

We even tossed on a MicroSD socket so you can store images, text files, whatever you like to display. Comes assembled and tested with socket headers that you can plug your Feather right into, no soldering required!

TECHNICAL DETAILS

PCB Dimension (excluding mounting holes): 79.5mm x 38mm x 6.8mm
Mounting hole diameter: 2.5mm
Mounting hole dimensions: 74.3mm x 42mm
Product Weight: 22.0g / 0.8oz

Technical documents / Downloads

WikiManufacturer WikiOpen

Dimensions and Weight
Item information	Value
GTIN:	4060137067556
HAN:	4777
Category:	Displays
Interface/Connector:	SPI
Resolution:	296x128
Form/Type:	E-Paper
Display Size (inch):	2,9
Touchscreen:	Non-Touch
Platform:	Arduino*
RoHS Certificate:	compliant
Shipping weight:	0,02 kg
Item weight:	0,02 kg
Dimensions ( Length × Width × Height ):	8,00 × 3,80 × 0,70 cm

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Manufacturer according to GPSR
Adafruit Industries LLC, Varick St. 150, 10013 New York, New York, Vereinigte Staaten, [email protected], https://eckstein-shop.de/Adafruit-Marken