• sales

    +86-0755-88291180

5.83inch e-Paper HAT (C)

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.


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.


TAG: Raspberry Pi 3 LCD HAT ESP32 S3 2.1 inch Round LCD Development Board 480x480 TouchScreen Display LVGL HMI With QMI8658C 6-Axis Sensor EG25-G Mini PCIe SIMCom Original 4G LTE Cat-4 Module Global Coverage GNSS PCI Express Mini Card Raspberry Pi 5 5V5A Power Jetson Raspberry Pi 5 Audio Card 1.83inch LCD TouchScreen Display 240×280 NV3030B Arduino Raspberry Pi ESP32S3 Pico STM32 Raspberry Pi LCD display screen 1.3inch ST7789 with Game Button A LuckFox Pico ESP32 C3 Zero Raspberry Pi 5 Power UART To Ethernet XIAO RA4M1 Tiny SuperMini Board For Arduino Uno IDE For SeeedStudio R7FA4M1 Arduino 0.85inch LCD LuckFox 0.49inch OLED Screen Display 64×32 SSD1315 Arduino Raspberry Pi ESP32 Pico STM32 ESP32 S3 4.3inch LCD (B) 800x480 Captive TouchScreen Display Board LVGL with Sensor CAN I2C RS485 Jetson Nano 1.54inch OLED Electronic EYE 0.71 inch Round LCD Display Screen For Arduino Raspberry Pi ESP32 Pico STM32 Jetson Nano 4G module