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KAmodEPAPER

Description

KAmodEPAPER is a module with readable and energy-efficient EPD (e-Paper) display GDE035A3. Thanks to control signals on external connector and in module integrated voltage regulator, controlling of display is easy and don't need additional power lines.

KAmodEPAPER modul.png
Basic features and parameters
  • GDE035A3 display type EPD
    • Screen size: 3.5"
    • Resolution: 800x480
    • Contrast: 8:1
    • Display area dimensions: 45.7mm x 76.16mm
    • 16 shades of gray
    • HX8705-B controller
  • Display control lines on connector
  • Embedded voltage regulator
  • Potentiometer for black depth regulation
  • Power supply: 3.3V - 5.5V
  • Logical signals voltage: max. 3.6V
  • It doesn't need power supply for static displaying of image
  • Module size: 106mm x 75mm x 20mm

 

Standard equipment
Code Description
KAmodEPAPER
  • Assembled and launched module
  • Control shaft for potentiometer
Board view
KAmodEPAPER obrys.png
Electrical schematic
KAmodEPAPER schemat.png
GDE035A3 display

EPD display with 3.5inch diagonal is used in KAmodEPAPER. It allows to displaying of monochromatic graphics with 800x480 resolution. Display offers 16 shades of gray and high contrast 8:1. Refreshing of content lasts 300ms. Important feature of used display is energy-efficient - it needs only power supplying for refreshing. If display is disconnected from power and control signals, it is displaying unchanged content.

KAmodEPAPER GDE035A3.png
Output description
Data signals
Pin JP1 2 4 6 8 10 12 14 16 18 20 21 22 24 26 28 30
STM32 PC9 PC8 PB14 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC13 PC0 PB11 PB9 PB10 PB8
GDE035A3 CPV STV MD1 D7 D6 D5 D4 D3 D2 D1 SPH D0 SHR OE LE CLK
Power supply / voltage regulator control
Pin JP1 1 32 3 5 7 27
STM32 - - PA3 PA1 PA2 PB1
Signal VCC GND Vgh_EN Vneg/Vgl_EN Vpos_EN Vcom_EN
KAmodEPAPER pinout.png
Multimedia

KamodEPAPER with STM32 board presentation

External links