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| − | {{Infobox item
| + | {{#tweekihide:firstHeading|sidebar-left|sidebar-right}}__NOTOC__ |
| − | |name=7.5inch e-Paper raw Panel
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| − | |name2=7.5inch e-paper HAT
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| − | |img=[[File:7.5inch-e-Paper-1.jpg|300px|link=https://www.waveshare.com/7.5inch-e-paper.htm]]
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| − | |img2=[[File:7.5inch-e-paper-hat-4.jpg|300px|link=http://www.waveshare.com/7.5inch-e-paper-hat.htm]]
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| − | |caption=640x384, 7.5inch E-Ink raw panel without driver board
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| − | |caption2=640x384, 7.5inch E-Ink display HAT for Raspberry Pi, SPI interface
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| − | |category=[[:Category:OLEDs / LCDs|OLEDs / LCDs]], [[:Category:LCD|LCD]]
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| − | |brand=Waveshare
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| − | |{{#urlget:amazon|default}}=display
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| − | |website_cn=[http://www.waveshare.net/shop/7.5inch-e-paper-hat.htm 官方中文站点]
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| − | |website_en=[http://www.waveshare.com/7.5inch-e-paper-hat.htm Waveshare website] | |
| − | |interface1=SPI
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| − | |related=
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| − | {{Product List|OLEDs / LCDs/e-Paper}}
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| − | }} | |
| − | <div class="tabber">
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| − | <div class="tabbertab" title="Introduction">
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| − | = Introduction =
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| | | | |
| − | '''Note:''' The raw panel require a driver board, If you are the first time use this e-Paper, we recommend you to buy the HAT version or buy more one driver hat for easy use, otherwise you need to make the driver board yourself.And this instruction is based on the HAT version.
| + | <div style="background-color: #343434;text-align: center;color: white;padding: 20px;margin: 8px;"> |
| | + | =7.5inch e-Paper HAT Manual= |
| | + | </div> |
| | + | <p></p> |
| | + | {{ContentGrid|grid-gap=25px |
| | + | |content = |
| | + | {{StudyCard |
| | + | |img=[[File:E-Paper_Introduction_4.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Overview]] |
| | + | |heading = Introduction |
| | + | |content = Parameters, principles and precautions}} |
| | | | |
| − | 640x384, 7.5inch E-Ink display HAT for Raspberry Pi, SPI interface
| + | {{StudyCard|img=[[File:Rapberry Pi.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Working_With_Raspberry_Pi]] |
| | + | |heading = Working with Raspberry Pi |
| | + | |content = User guides for the development demo of C language, Python}} |
| | | | |
| − | {{Amazon|{{#urlget:amazon|default}}=display | + | {{StudyCard|img=[[File:Arduino00.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Working_With_Arduino]] |
| − | |More = [http://www.waveshare.com/7.5inch-e-paper-hat.htm More]}} | + | |heading = Working with the Arduino |
| | + | |content = User guides for the development demo based on Arduino UNO R3}} |
| | | | |
| − | = Interfaces =
| + | {{StudyCard|img=[[File:Jetson Arduino00.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Working_With_Jetson_Nano]] |
| − | {|class="wikitable" | + | |heading = Working with the Jetson Nano |
| − | |- | + | |content = User guides for the development demo of C language, Python}} |
| − | | VCC || 3.3V | |
| − | |-
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| − | | GND || GND
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| − | |-
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| − | | DIN || SPI MOSI
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| − | |-
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| − | | 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) | |
| − | |- | |
| − | | 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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| − | ----
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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.
| + | {{StudyCard|img=[[File:Sunrise X3 Pi.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Working_With_Sunrise_X3_Pi]] |
| − | * CS is slave chip select, when CS is low, the chip is enabled.
| + | |heading = Working with Sunrise X3 Pi |
| − | * DC is data/command control pin, when DC = 0, write command, when DC = 1, write data.
| + | |content = User guides for the development demo based on Python}} |
| − | * 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. | |
| − | # CPHA determines 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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| − | === Display a Frame (DisplayFrame) ===
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| − | DisplayFrame is used to send a frame to the module, and the screen will refresh and display it.
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| | | | |
| − | Process: Send command data start transmission 1 -> Send data of an image to display -> Refresh the screen.
| + | {{StudyCard|img=[[File:STM321.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Working_With_STM32]] |
| | + | |heading = Working with the STM32 |
| | + | |content = User guides for the development demo based on STM32CubeMX}} |
| | | | |
| − | Note:
| + | {{StudyCard|img=[[File:E-Paper_ESP32.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#ESP32.2F8266]] |
| − | * About the image data: 4 bits = 1 pixel, doesn’t support Gray scale (can only display black and white). 0000 (binary) stands for a black pixel, otherwise 0011 (binary) stands for a white pixel.
| + | |heading = Working with ESP32/8266 |
| | + | |content = User guides for ESP32/8266}} |
| | | | |
| − | For example：
| + | {{StudyCard|img=[[File:Resource0.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Resources]] |
| − | <pre>
| + | |heading = Resources |
| − | 0x00: 2 pixels ■■
| + | |content = Documentation, procedures and data sheets, etc}} |
| − | 0x03: 2 pixels ■□
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| − | 0x30: 2 pixels □■
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| − | 0x33: 2 pixels □□
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| − | but 0x66: the state of pixels is uncertain
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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 (about 6s), 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/7/74/7.5inch-e-paper-hat-user-manual-en.pdf User Manual]
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| − | {{Commom Instruction of SPI e-paper}}
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| − | * [[:File:E-Paper-Driver-HAT-Schematic.pdf|Schematic]]
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| | | | |
| − | = Demo code = | + | {{StudyCard|img=[[File:FAQ01.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#FAQ]] |
| − | *[https://github.com/waveshare/e-Paper Github]
| + | |heading = FAQ |
| | + | |content = e-Paper frequently asked questions}} |
| | | | |
| − | = Datasheets = | + | {{StudyCard|img=[[File:support00.jpg|110px|link=https://www.waveshare.com/wiki/7.5inch_e-Paper_HAT_Manual#Support]] |
| − | * [[:File:7.5inch-e-paper-specification.pdf|Datasheet]]
| + | |heading = Support |
| − | =Related Resources=
| + | |content = Technical support |
| − | This is a post in Arduino Form about our SPI e-Paper thanks to ZinggJM, maybe you want to refer to.
| + | }} |
| − | *[https://forum.arduino.cc/index.php?topic=487007.0 Waveshare e-Paper display with SPI]
| + | }} |
| − | | |
| − | = Related applications (shared by user)=
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| − | *[https://www.youtube.com/watch?v=OW4GYmzWOb8 Task List using Raspberry Pi 3 and 7.5" E-paper Display]
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| − | *[https://github.com/aceisace/E-Paper-Calendar-with-iCal-sync-and-live-weather E-Paper Calendar with iCal sync and live weather ]
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| − | </div>
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| − | <div class="tabbertab" title="FAQ">
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| − | = FAQ = | |
| − | <!--{{e-Paper FAQ}}-->
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| − | {{e-Paper FAQ}}
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| − | </div>
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| − | </div>
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| − | ==Support==
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| − | {{Service00}}
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