• 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: UART To CAN Raspberry Pi PCF8591 expansion board LED GPIO IO test ADC/DCA Sensor Beginner board UART To CAN Mini JETSON NANO MINI Fan ESP32-S3 SIM7670G 4G Development Board With Camera LTE Cat-1/4G/GNSS/GPS Global Band Portable WIFI CV1800B Orange Pi Zero 3 USB Camera Raspberry Pi RP2040 LoRa-HF Raspberry Pi Pico Camera Raspberry Pi CM5 to Pi 5 Expansion Board With USB microphone & Audio Port Raspberry Pi Pico 1.54inch LCD display 240×240 IPS 1.54 inch screen Jetson Orin 5G/4G/3G expansion board GNSS GPS SIM8260G-M2 SIM8262E-M2 Raspberry Pi 5inch Display 1024x600 HDMI Capacitive TouchScreen 5 inch LCD B Wide-Cover For Mini PC Industrial USB HUB USB3.2 Gen1 One-To-4U Onboard 7~36V DC power port For Multi Systems Luckfox Pico Raspberry Pi 10.1 inch LCD HDM Display Capacitive TouchScreen 10.1EP-CAPLCD 1920x1200 For Jetson Nano/mini Computer PC Raspberry Pi 0.96inch LCD Luckfox Pico Zero RV1106G3 SD WiFi6 Audio eMMC-8G RAM-256MB Industrial grade isolated USB to RS232/485 converter supports USB to 2-way RS232 + 2-way RS232/485 original FT4232HL