Description
Our MaTouch ESP32 S3 4.2 Triple Color E Ink display is equipped with the SE0420MN11 A0 model, which uses microcapsule electrophoretic technology to show images. This technology works by applying an electric field to charged particles that are suspended in a clear fluid. The particles move to the sides of microcapsules and become visible by reflecting ambient light, similar to traditional printed paper.
The display has an active area of 400 x 300 pixels and full display capabilities of triple color: 1 bit B/W/R. In addition, there are the following advantages:
- The device keeps displaying the last content for an extended period even after power down.
- It consumes ultra low power and requires power only for refreshing.
- It uses an SPI interface and demands less IO pins, leaving extra pins for I2C and GPIO expansion.
- It supports a 3.7V battery or a 5.0V Type C power supply.
- The device has two buttons that provide sliding up, sliding down, and pressing functions to enable six interactive points.
- The device features an ESP32S3 controller with WiFi and Bluetooth support.
LCD Specifications:
- Part number: GDEH042Z21
- Size: 4.2 inch
- Type: Dot matrix
- IC: UC8276
- Resolution: 400x300
- Outline size (mm): 91x77x1.25
- Active size (mm): 84.8x63.6
- Pixel pitch (mm): 0.212x0.212
- Operating temp: 0°C~40°C
- Storage temp: 25°C~60°C
- Connector: 24 Pin FPC
- Max grayscale: 2
- Color: Black, White, Red
- Interface: SPI
- Full refresh (s): 15
- Power consumption of the refresh (mW): 8.91
- Standby power consumption (mW): 0.0056
Features:
- Controller: ESP32 S3
- Wireless: WiFi & Bluetooth 5.0
- Flash: 16MB
- PSRAM: 8MB
- Expansion interface: 1 * GPIO, 1 * I2C
- Micro SD: Yes
- Button: Flash button and reset button
- USB: 1 * USB to UART, 1 * USB native
- Input voltage: 3.7V Battery or 5.0V Type C
- Arduino support: Yes
Reference:
Use Cases:
E Readers:
Use this display for e readers, providing a paper like reading experience with low power consumption and the ability to display the last content without power.
Smart Home Displays:
Integrate this display into smart home devices for displaying information such as weather updates, notifications, and home automation status with minimal power usage.
Retail Price Tags:
Utilize this display for electronic shelf labels in retail environments, offering clear visibility and the ability to update pricing and product information wirelessly.
