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1.54-inch tri-color e-ink display module with built-in Flash chip, front light/touchscreen driver board, DESPI-K154Z90
Number of views:
1000
Product serial number
620154Z9
Category
ePaper Shield
Quantity
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Overview
Specification
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1.54-inch black-white-red tri-color e-ink display module / 200x200 resolution
DESPI-K154Z90 is an E Ink screen module equipped with a capacitive touch screen and LED front light source built into the driving backplane. It also contains a built-in Flash chip.
The module board incorporates a Flash chip with the model number W25Q128, which is a 128M-bit (16M-byte) serial NOR Flash storage device. This facilitates users to store related data such as images and font libraries. Additionally, the module provides an SD card slot, allowing users to optionally add a Micro SD card. The presence of the Flash chip and SD card slot resolves users' storage space concerns.
This module is equipped with three LED lights. Directly controlling the expansion pins corresponding to each LED enables the illumination function. It reserves a 6-pin touch screen FPC interface, with the touch screen's corresponding pins defined and outlined in the pin description. Additionally, it reserves a 6-pin front light FPC interface, allowing connection to a 3.3V-powered front light board, with pin descriptions as follows: 3.3V (1, 2), NC (3, 4), GND (5, 6).
This module connects to the electronic paper display via a 24-pin FPC connector. Therefore, if you have a requirement to connect to other 24-pin 1.54-inch electronic paper display modules, please contact us.
Product Features
- SPI Interface. Compatible with Raspberry Pi/ Raspberry Pi Pico/ Arduino/ ESP8266/ ESP32/ STM32 platforms. We can provide driver boards if needed. For the STM32 platform, the connection method is as follows:
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- Integrate a Flash chip and an SD card slot for expanded development.
- Assist users in learning how to drive a touchscreen and a front-facing electrophoretic ink screen.
- There are 3 LEDs, each of which can be directly controlled via expansion pins. (Please refer to the pin description for pin definitions)
PINS FOR EPD MODULE
1. Pins for EPD
1) BUSY: BUSY signal of e-paper. When the e-paper is refreshing, the BUSY pin sends out "busy" signal to MCU, the MCU can not read and write the e-paper IC; When the e-paper refresh is completed, the BUSY pin sends out "free" signal, the MCU can read and write the e-paper IC. GDEW series e-paper busy state is high level (GDEH series is low level), and free state is opposite.
2) RES: Reset signal of e-paper. Low level effective.
3) D/C: Data/ Command selection. High level for data, low level for command.
4) CS: Chip selection. Low level effective.
5) SCK: SPI serial communication clock signal line.
6) SDI: SPI serial communication data signal line.
7) GND: Negative power supply.
8) 3.3V: Positive power supply
2. Expanded Pins
1) SI: Master Output Slave Input for SPI: INT pin for TP.
2) SO: Master Input Slave Output for SPI: RST pin for TP.
3) SCK: Clock signal line for SPI: SCL pin for TP.
4) CS0: Chip selection for Flash: SDA pin for TP.
5) CS1: Chip selection for SD.
6) LED1: Control pin for LED1.
7) LED2: Control pin for LED2.
8) LED3: Control pin for LED3.
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