• sales

    +86-0755-88291180

1.02inch e-Paper Module

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.

128x80, 1.02inch E-Ink display module, 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 (High 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.


Communication protocol




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.

  • e-Paper HAT Codes description

  • e-Paper HAT Hardware/software setup
  • TAG: ESP32 S3 R8 MP3 Board 2.8inch LCD TouchScreen Display Speaker/SD-Card/Battery/QMI8658-6-Axis-Sensor Raspberry Pi 13.3 inch FHD Monitor LCD 1080P Capacitive TouchScreen Display Type-C/HDMI For Computer PC Raspberry Pi 5 PCIe to M.2 5G/4G/3G HAT With RM520N-GL Raspberry Pi 1.54inch OLED SP3232EEN RP2040 X1002 Raspberry Pi 5 PCIe to M.2 NVMe SSD Adapter Board HAT Pi5 2280 Raspberry Pi Display Driver Board PI5 Case Milk-V Duo S eMMC version firmware burning DeepSeek AI Voice Chat ESP32 S3 Development Board 1.8 inch AMOLED Display 368×448 1.8inch TouchScreen Programmable Watch QMI8658 /MIC /Audio /Battery ESP32 2 inch Capacitive TouchScreen LCD Display ST7789 CST816D 240x320 For Arduino/Raspberry Pi/Pico UNO Minima RA4M1 ZERO Tiny SuperMini R7FA4M1 Board Compatible With R4 For Arduino 1.14inch LCD Modbus POE ETH Relay Waveshare User Guide Raspberry Pi Pico RP2040-LCD-0.96 User Guide USB camera 5MP IMX335 No Distortion UGV Rover ROS2 PT AI OpenCV Robot Car MediaPipe For Jetson Orin Nano Luckfox Program