KAmodEPAPER
Contents
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.
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 |
|
Board view
Electrical schematic
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.
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 |
Multimedia
KamodEPAPER with STM32 board presentation