| Account | My Orders
Cart(0)
Spotpear
  • sales

    +86-0755-88291180

2.9inch e-Paper (C)

Introduction


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 version with PCB or driver board.

296x128, 2.9inch E-Ink display module, three-color, SPI interface


Interfaces


VCC3.3V
GNDGND
DINSPI MOSI
CLKSPI SCK
CSSPI chip select (Low active)
DCData/Command control pin (High for data, and low for command)
RSTExternal reset pin (Low for reset)
BUSYBusy state output pin (Low for busy)


Working principle


Introduction


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.




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.

  • CS is slave chip select, when CS is low, the chip is enabled.
  • DC is data/command control pin, when DC = 0, write command, when DC = 1, write data.
  • SCLK is the SPI communication clock.
  • SDIN is the data line from the master to the slave in SPI communication.

SPI communication has data transfer timing, which is combined by CPHA and CPOL.

  1. 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.
  2. 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.
  • There are 4 SPI communication modes. SPI0 is commonly used, in which CPHL = 0, CPOL = 0.

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.


Price：
$11.89
Model：
2.9inch-e-Paper-(C)
Brand：
Spotpear
SKU：
0201113

2.9inch E Ink raw display, yellow, black, white, 296x128

TAG： Raspberry Pi 5 Case Raspberry Pi 5 ICE Tower Argon THRML 60mm Radiator Cooler CPU Cooler Copper Tube Fins Pi5 pcb800099-v.9 Arducam CSI-to-HDMI MPTPU Raspberry Pi 5 TPU AI Kit PCIe Google Coral Edge MEGA2560 R3 spotpear Milk-V Duo SIM7600G H Mini PCIe SIMCom 4G LTE Cat-4 Global GNSS Raspberry Pi 5 802.3af Raspberry Pi Pico spotpear Raspberry Pi UPS Arduino 1.5inch LCD MPS2280 POE Raspberry Pi 5 PCIe M.2 NVMe SSD Pi5 2280 2242 2230 ADXL354C Dev Board Raspberry Pi 3 display HAT Raspberry Pi 64MP Camera RM500Q AE IoT EMBB 5G 4G 3G M.2 LTE-A/NSA SA GNSS DFOTA VoLTE Quectel
©Copyright 2015 Berlinger Haus | All Rights Reserved
Address：Rm401, building 4, Enlai industrial city, Nankang Road, Danzhutou community, Nanwan street, Longgang District, Shenzhen
Email：services01@spotpear.com (Only tech support .Order see 'CONTACT US' at our web )