Difference between revisions of "4.2inch NFC-Powered e-Paper"

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{{Infobox item
 
{{Infobox item
|name=4.2inch e-Paper
+
|name=4.2inch NFC-Powered e-Paper
|name2=4.2inch e-Paper Module
+
|img=[[File:4.2inch-NFC-Powered-e-Paper-1.jpg|300px|link=https://www.waveshare.com/4.2inch-nfc-powered-e-paper.htm]]
|img=[[File:4.2inch-e-Paper-1.jpg|300px|link=https://www.waveshare.com/4.2inch-e-Paper.htm]]
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|caption=400x300, 4.2inch E-Ink display NFC-Powered e-Paper
|img2=[[File:4.2inch-e-paper-module-5.jpg|300px|link=http://www.waveshare.com/4.2inch-e-paper-module.htm]]
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|caption=400x300, 4.2inch E-Ink display raw panel
+
|caption2=400x300, 4.2inch E-Ink display module, SPI interface
+
 
|category=[[:Category:OLEDs / LCDs|OLEDs / LCDs]], [[:Category:LCD|LCD]]
 
|category=[[:Category:OLEDs / LCDs|OLEDs / LCDs]], [[:Category:LCD|LCD]]
 
|brand=Waveshare
 
|brand=Waveshare
 
|{{#urlget:amazon|default}}=display
 
|{{#urlget:amazon|default}}=display
|website_cn=[http://www.waveshare.net/shop/4.2inch-e-Paper-Module.htm 官方中文站点]
+
|website_cn=[http://www.waveshare.net/ 官方中文站点]
|website_en=[http://www.waveshare.com/4.2inch-e-paper-module.htm Waveshare website]
+
|website_en=[https://www.waveshare.com/4.2inch-nfc-powered-e-paper.htm Waveshare website]
 
|interface1=SPI
 
|interface1=SPI
 
|related=
 
|related=
{{Product List|OLEDs / LCDs/e-Paper}}
+
 
 
}}
 
}}
<div class="tabber">
+
==Instruction==
<div class="tabbertab" title="Introducton">
+
This is an NFC-powered 4.2inch e-Paper Module, with 400x300 resolution. Users can transmit data from smart phone or NFC reader to e-Papre and refresh by NFC.
= Introduction =
+
===Features===
{{E-Paper Raw Panel}}
+
*No backlight required, e-Paper keep displaying the last content for a long time without power
 
+
*No power adapter requried
400x300, 4.2inch E-Ink display module, SPI interface
+
*You can modify the display content by smart phone
 
+
*Compe with ABS case
{{Amazon|{{#urlget:amazon|default}}=display
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*App is provided
|More = [http://www.waveshare.com/product/4.2inch-e-paper-module.htm More]}}
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===Specification===
 
+
*Power: NFC-powered
= Interfaces =
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*Resolution: 400x300
{|class="wikitable"
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*Dot pitch: 0x212x 0x212
|-
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*Refresh time: 4s
| VCC || 3.3V
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*Display color: black, white
|-
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*Viewing angle: >170°
| GND || GND
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*Outline dimension: 105.0mm x 94.1mm, 9.90mm
|-
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*Display dimension: 84.8mm x 63.6mm
| DIN || SPI MOSI
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==User guide==
|-
+
You can download the app from [[#Resources]] and install it to your phone, note that the app can only supports Android 4.0(Ice Cream Sandwich) and above.
| CLK || SPI SCK
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|-
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| CS || SPI chip select (Low active)
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|-
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| DC || Data/Command control pin (High for data, and low for command)
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|-
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| RST || External reset pin (Low for reset)
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|-
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| BUSY || Busy state output pin (Low for busy)
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|}
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= Working principle =
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;Introduction
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----
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This product is an E-paper device adopting the image display technology of Microencapsulated Electrophoretic Display, MED. The initial approach is to create tiny spheres, in which the charged color pigments are suspending in the transparent oil and would move depending on the electronic charge. The E-paper screen display patterns by reflecting the ambient light, so it has no background light requirement. Under sunshine, the E-paper screen still has high visibility with a wide viewing angle of 180 degree. It is the ideal choice for E-reading.
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; Communication protocol
+
----
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[[File:1.54inch-e-paper-manual-1.png|400px]]
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Note: Different from the traditional SPI protocol, the data line from the slave to the master is hidden since the device only has display requirement.
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* CS is slave chip select, when CS is low, the chip is enabled.
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* DC is data/command control pin, when DC = 0, write command, when DC = 1, write data.
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* SCLK is the SPI communication clock.
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* SDIN is the data line from the master to the slave in SPI communication.
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SPI communication has data transfer timing, which is combined by CPHA and CPOL.
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# CPOL determines the level of the serial synchronous clock at idle state. When CPOL = 0, the level is Low. However, CPOL has little effect to the transmission.
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# CPHA determines whether data is collected at the first clock edge or at the second clock edge of serial synchronous clock; when CPHL = 0, data is collected at the first clock edge.
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* There are 4 SPI communication modes. SPI0 is commonly used, in which CPHL = 0, CPOL = 0.
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As you can see from the figure above, data transmission starts at the first falling edge of SCLK, and 8 bits of data are transferred in one clock cycle. In here, SPI0 is in used, and data is transferred by bits, MSB first.
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</div>
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<div class="tabbertab" title="Hardware/Software setup">
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{{Hardware/Software setting for SPI e-paper}}
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</div>
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<div class="tabbertab" title="Codes description">
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{{e-Paper Codes Description}}
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</div>
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<!--
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=== Display a Frame (DisplayFrame) ===
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DisplayFrame is used to send a frame to module, and the screen will refresh and display it.
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Process: resolution setting -> VCM DC setting -> VCOM and data interval setting -> Send command data start transmission 1 -> Send data of an white image (send 0xFF 15000 times) -> Send command data start transmission 2 -> Send data of an image to display -> set LUT -> Refresh the screen.
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Note:
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* You have to send a white frame before the frame to display.
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* 1 byte = 8 pixels, doesn’t support Gray scale (Can only display black and white). A bit set stands for a white pixel, otherwise a bit reset stands for black.
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For example:
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<pre>
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0xC3:8 pixels □□■■■■□□
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0x00:8 pixels ■■■■■■■■
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0xFF:8 pixels □□□□□□□□
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0x66:8 pixels ■□□■■□□■
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</pre>
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* This module doesn’t support partial refresh.
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* The refresh rate of this module is slow, and it will flicker for several times during refreshing. Please be patient.
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-->
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<div class="tabbertab" title="Resources">
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== Resources ==
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= Documentation =
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*[https://www.waveshare.com/w/upload/2/20/4.2inch-e-paper-module-user-manual-en.pdf User Manual]
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{{Commom Instruction of SPI e-paper}}
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* [[:File:4.2inch_e-Paper_Schematic.pdf|Schematic]]
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= Demo code =
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* [[:File:4.2inch_e-paper_module_code.7z|Demo code]]
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*[https://github.com/waveshare/e-Paper Github]
+
  
= Datasheets =
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*Click the picture button on the bottome to choose picture. You can choose the picture from DCIM or you take a picture by camera.
* [[:File:4.2inch-e-paper-specification.pdf|Datasheets]]
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:[[File:4.2inch NFC-Powered epaper manual-1.png|300px]] [[File:4.2inch NFC-Powered epaper manual-2.png|300px]]
 +
: Except pictures from DCIM and camera, you can also make string picture manually.
 +
:[[File:4.2inch NFC-Powered epaper manual-3.png|300px]][[File:4.2inch NFC-Powered epaper manual-4.png|300px]][[File:4.2inch NFC-Powered epaper manual-5.png|300px]]
 +
*You can cut the picture after choosing, resize it and rotate. For best effect. we recommend you to pre-adjust the picture according to the resolution of e-Paper.
 +
:[[File:4.2inch NFC-Powered epaper manual-7.png|300px]][[File:4.2inch NFC-Powered epaper manual-8.png|300px]][[File:4.2inch NFC-Powered epaper manual-9.png|300px]]
 +
*In the main page, you can select the process effect ( None Effect, Gray Effect, Block Effect, Sketch Effect and Neon Effect)
 +
*In the main page, you can clock the Adjust symbol on the left-bottom to adjust the brightness and contrast. You can also touch the "+" symbol on the right-bottom to adjust picture.
 +
:[[File:4.2inch NFC-Powered epaper manual-10.png|300px]][[File:4.2inch NFC-Powered epaper manual-11.png|300px]][[File:4.2inch NFC-Powered epaper manual-12.png|300px]]
 +
*After setting, close the NFC area of you phone to backside of 4.2inch NFC-Powered e-Paper to update it.
 +
【Note】Make sure that you have open NFC function of your phone, and do not move phone when transmitting and updating.
 +
:[[File:4.2inch NFC-Powered epaper manual-13.png|300px]][[File:4.2inch NFC-Powered epaper manual-14.png|300px]][[File:4.2inch NFC-Powered epaper manual-15.png|300px]]
 +
*Other functions
 +
: You can also draw the picture. Click the "..." symbol on right-top , choose Gallery, touch one picture to enter drawing mode.
 +
:[[File:4.2inch NFC-Powered epaper manual-16.png|300px]]
  
=Related Resources=
+
==Resources==
This is a post in Arduino Form about our SPI e-Paper thanks to ZinggJM, maybe you want to refer to.
+
*[https://www.waveshare.com/w/upload/d/d7/NFCTag_EN.zip Android APP]
*[https://forum.arduino.cc/index.php?topic=487007.0 Waveshare e-Paper display with SPI]
+
</div>
+
<div class="tabbertab" title="FAQ">
+
= FAQ =
+
<!--{{e-Paper FAQ}}-->
+
{{e-Paper FAQ}}
+
</div>
+
 
==Support==
 
==Support==
 
{{Service00}}
 
{{Service00}}

Latest revision as of 03:51, 2 December 2019

4.2inch NFC-Powered e-Paper
4.2inch-NFC-Powered-e-Paper-1.jpg

400x300, 4.2inch E-Ink display NFC-Powered e-Paper
{{{name2}}}

{{{name3}}}

{{{name4}}}

{{{name5}}}

Primary Attribute
Category: OLEDs / LCDs, LCD
{{{userDefinedInfo}}}: {{{userdefinedvalue}}}
Brand: Waveshare
Website
English: Waveshare website
Chinese: 官方中文站点
Onboard Interfaces
SPI
Related Products

Instruction

This is an NFC-powered 4.2inch e-Paper Module, with 400x300 resolution. Users can transmit data from smart phone or NFC reader to e-Papre and refresh by NFC.

Features

  • No backlight required, e-Paper keep displaying the last content for a long time without power
  • No power adapter requried
  • You can modify the display content by smart phone
  • Compe with ABS case
  • App is provided

Specification

  • Power: NFC-powered
  • Resolution: 400x300
  • Dot pitch: 0x212x 0x212
  • Refresh time: 4s
  • Display color: black, white
  • Viewing angle: >170°
  • Outline dimension: 105.0mm x 94.1mm, 9.90mm
  • Display dimension: 84.8mm x 63.6mm

User guide

You can download the app from #Resources and install it to your phone, note that the app can only supports Android 4.0(Ice Cream Sandwich) and above.

  • Click the picture button on the bottome to choose picture. You can choose the picture from DCIM or you take a picture by camera.
4.2inch NFC-Powered epaper manual-1.png 4.2inch NFC-Powered epaper manual-2.png
Except pictures from DCIM and camera, you can also make string picture manually.
4.2inch NFC-Powered epaper manual-3.png4.2inch NFC-Powered epaper manual-4.png4.2inch NFC-Powered epaper manual-5.png
  • You can cut the picture after choosing, resize it and rotate. For best effect. we recommend you to pre-adjust the picture according to the resolution of e-Paper.
4.2inch NFC-Powered epaper manual-7.png4.2inch NFC-Powered epaper manual-8.png4.2inch NFC-Powered epaper manual-9.png
  • In the main page, you can select the process effect ( None Effect, Gray Effect, Block Effect, Sketch Effect and Neon Effect)
  • In the main page, you can clock the Adjust symbol on the left-bottom to adjust the brightness and contrast. You can also touch the "+" symbol on the right-bottom to adjust picture.
4.2inch NFC-Powered epaper manual-10.png4.2inch NFC-Powered epaper manual-11.png4.2inch NFC-Powered epaper manual-12.png
  • After setting, close the NFC area of you phone to backside of 4.2inch NFC-Powered e-Paper to update it.

【Note】Make sure that you have open NFC function of your phone, and do not move phone when transmitting and updating.

4.2inch NFC-Powered epaper manual-13.png4.2inch NFC-Powered epaper manual-14.png4.2inch NFC-Powered epaper manual-15.png
  • Other functions
You can also draw the picture. Click the "..." symbol on right-top , choose Gallery, touch one picture to enter drawing mode.
4.2inch NFC-Powered epaper manual-16.png

Resources

Support

Mail.png Contact your seller (fast response and most recommended)

or send emails to [email protected] (not fast enough but please be patient) for help.

Our working time: 09:00-18:00 (UTC+8 Monday to Saturday)