Difference between revisions of "2.13inch e-Paper HAT (B)"

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{{Product List|OLEDs / LCDs/e-Paper}}
 
{{Product List|OLEDs / LCDs/e-Paper}}
 
}}
 
}}
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== Introduction ==
 
== Introduction ==
 
{{E-Paper Raw Panel}}
 
{{E-Paper Raw Panel}}
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==== Expected result ====
 
==== Expected result ====
# Copy the libraries file of Arduino demo code to the libraries folder which is under the installation directory of Arduino IDE, it usually is C:\users\username\documents\arduino\libraries. You can also designate the location on Arduino IDE--> File -->Preferences -->Sketchbook location
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# Copy the libraries file of Arduino demo code to the libraries folder which is under the installation directory of Arduino IDE, it usually is C:\users\username\documents\arduino\libraries. You can also designate the location on Arduino IDE-> File ->Preferences ->Sketchbook location
 
# Upload the project.
 
# Upload the project.
 
# E-paper will display the image.
 
# E-paper will display the image.
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=== Initialization (Init) ===
 
=== Initialization (Init) ===
After powering on the module, initialization function (Init) will configure the parameters of module. It can also wake up module from sleep mode. Process of initialization: :reset --> booster soft start --> power on --> panel setting --> VCOM and data interval setting --> resolution setting.
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After powering on the module, initialization function (Init) will configure the parameters of module. It can also wake up module from sleep mode. Process of initialization: :reset -> booster soft start -> power on -> panel setting -> VCOM and data interval setting -> resolution setting.
 
=== Display a Frame (DisplayFrame) ===
 
=== Display a Frame (DisplayFrame) ===
 
DisplayFrame is used to send a frame to module, and the screen will refresh and display it.
 
DisplayFrame is used to send a frame to module, and the screen will refresh and display it.
  
Process: Send command data start transmission 1 --> Send data of black area --> Send command data start transmission 2 --> Send data of red area --> Refresh the screen.
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Process: Send command data start transmission 1 -> Send data of black area -> Send command data start transmission 2 -> Send data of red area -> Refresh the screen.
  
 
Note:
 
Note:
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Sleep can make the module go into sleep mode to reduce the consumption.
 
Sleep can make the module go into sleep mode to reduce the consumption.
  
Process: power off --> deep sleep
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Process: power off -> deep sleep
  
 
If you want to wake up the module from sleep mode, you need to give a LOW pulse to RST pin. Then maybe you need to reconfigure the parameter of power (According to the batches, some of them need to reconfigure, some needn’t). So if you want to wake up module, you had better use the Init function instead of Reset. Reset function and relative commands will be executed while executing the Init function.
 
If you want to wake up the module from sleep mode, you need to give a LOW pulse to RST pin. Then maybe you need to reconfigure the parameter of power (According to the batches, some of them need to reconfigure, some needn’t). So if you want to wake up module, you had better use the Init function instead of Reset. Reset function and relative commands will be executed while executing the Init function.
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# Open a picture with drawing tool comes with Windows system, create a new image, and set the pixel to 104x212.
 
# Open a picture with drawing tool comes with Windows system, create a new image, and set the pixel to 104x212.
# Because this module can only display two gray level (Only black and white), we need to convert picture to monochrome bitmap before converting it to array. That is, File --> BMP picture --> Monochrome Bitmap.
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# Because this module can only display two gray level (Only black and white), we need to convert picture to monochrome bitmap before converting it to array. That is, File -> BMP picture -> Monochrome Bitmap.
 
#: There are two monochrome bitmap on examples pack, which are used for demonstration (raspberrypi/python/black.bmp and raspberrypi/python/red.bmp).
 
#: There are two monochrome bitmap on examples pack, which are used for demonstration (raspberrypi/python/black.bmp and raspberrypi/python/red.bmp).
 
# Use [[:File:Image2Lcd.7z|Image2Lcd.exe]] software to generate corresponding array for picture (.c file). Open picture with this software, set the parameters:
 
# Use [[:File:Image2Lcd.7z|Image2Lcd.exe]] software to generate corresponding array for picture (.c file). Open picture with this software, set the parameters:
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#* Inverse color: Check (Check: the white on image will be inversed to 1, and black is inversed to 0)
 
#* Inverse color: Check (Check: the white on image will be inversed to 1, and black is inversed to 0)
 
# Click “Save”, to generate .c file. Copy the corresponding array into your project, and you can display picture by calling this array.
 
# Click “Save”, to generate .c file. Copy the corresponding array into your project, and you can display picture by calling this array.
 
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-->
 
== Resources ==
 
== Resources ==
 
=== Documentation ===
 
=== Documentation ===
 +
*[https://www.waveshare.com/w/upload/4/4a/2.13inch-e-paper-hat-b-user-manual-en.pdf User Manual]
 
{{Commom Instruction of SPI e-paper}}
 
{{Commom Instruction of SPI e-paper}}
 
* [[:File:2.13inch_e-Paper_HAT_Schematic.pdf|Schematic]]
 
* [[:File:2.13inch_e-Paper_HAT_Schematic.pdf|Schematic]]

Latest revision as of 09:02, 24 December 2018

2.13inch e-Paper (B)
2.13inch-e-Paper-B-1.jpg

212x104, 2.13inch E-Ink display raw panel
2.13inch e-Paper HAT (B)
2.13inch-e-paper-hat-b-5 1.jpg

212x104, 2.13inch E-Ink display HAT for Raspberry Pi, three-color, SPI interface
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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

Resources

Documentation

Demo code

Datasheets

FAQ

Question:
1. Why the e-Paper cant work with Arduino?
Answer:

The I/O level of Arduino is 5V, and the e-Paper should be driven with 3V3. If your Arduino cant drive the e-Paper successfully, please try to convert the level to 3.3V

You can also try to connect the Vcc pin to the 5V of Arduino to see whether the e-Paper works, but we recommend you not to use 5V for a long time.


Question:
2. Why does the color of e-Paper look a little black or grey?
Answer:

You can try to change the value of Vcom on demo codes.


Question:
3. Three-color e-paper looks more red/yellow than the picture on website?
Answer:

Because of different batch, some of them have aberration. Store the e-Paper right side up will reduce it. And if the e-Paper didn't be refreshed for long time, it will become more and more red/yellow. Please use the demo code to refresh the e-paper for several times in this case.


Question:
3. Why my e-paper has ghosting problem after working for some days
Answer:

Please set the e-paper to sleep mode or disconnect it if you needn't refresh the e-paper but need to power on your development board or Raspberry Pi for long time.Otherwise, the voltage of panel keeps high and it will damage the panel



Question:
4. Why the FPC of the e-Paper is broken after using for some times?
Answer:
Please make sure you have used it in correct way.

E-Paper FAQ FPC.jpg



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