4.20 Inch ePaper Display Overview
ND042EPN400300-A01 is a 4.20-inch black-and-white ePaper display with a 400 × 300 E Ink panel, UC8176 controller and SPI interface. Its reflective landscape image area can retain readable information between updates without a backlight. Before committing the host PCB, verify the 24-pin FPC assignments, logic levels, supply rails, power sequencing, controller initialization and panel-specific waveform requirements.
Equipment status panels, smart home dashboards, inventory labels and battery-powered IoT terminals can use this module for periodic updates. Evaluate text density, mounting clearances and refresh scheduling against the intended application. NoseDisplay can review ESP32 or STM32 host connections and suitable Arduino or Raspberry Pi driver arrangements, with FPC routing, cover lenses and optional touch integration assessed during OEM prototype development.
ND042EPN400300-A01 is a 4.20-inch 400 × 300 black-and-white E Ink ePaper module with UC8176, SPI and a 24-pin FPC. Its landscape format suits equipment status panels, smart home dashboards and inventory labels with periodic updates. Integration requires a suitable driver circuit, verified supply levels, power sequencing, initialization and panel-specific waveforms. NoseDisplay can evaluate host connections, enclosure clearances and OEM prototype requirements.
Technical Specifications
Mechanical Drawing & Interface Definition
Model: ND042EPN400300-A01
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PIN Description
| Pin No. | Symbol | Description |
|---|---|---|
| 01 | NC | Do not connect with other NC pins. (I/O: —) |
| 02 | GDR | N-Channel MOSFET Gate Drive Control. (I/O: O) |
| 03 | RESE | Current Sense Input for the Control Loop. (I/O: I) |
| 04 | NC | Do not connect with other NC pins. (I/O: —) |
| 05 | VDHR | Positive Source driving voltage 1. (I/O: C) |
| 06 | TSCL | I²C Interface to digital temperature sensor Clock pin. (I/O: O) |
| 07 | TSDA | I²C Interface to digital temperature sensor Data pin. (I/O: I/O) |
| 08 | BS | Bus Interface selection pin. (I/O: I) |
| 09 | BUSYN | Busy state output pin. (I/O: O) |
| 10 | RSTN | Reset signal input. Active Low. (I/O: I) |
| 11 | D/C | Data /Command control pin. (I/O: I) |
| 12 | CSB | Chip select input pin. (I/O: I) |
| 13 | SCL | Serial Clock pin (SPI). (I/O: I) |
| 14 | SDA | Serial Data pin (SPI). (I/O: I) |
| 15 | VDD | Power Supply for interface logic pins. (I/O: P) |
| 16 | VDD | Power Supply for the chip. (I/O: P) |
| 17 | VSS | Ground. (I/O: P) |
| 18 | VDDD | Core logic power pin. VDDD can be regulated internally from VDD. A capacitor should be connected between VDDD and VSS under all circumstances. (I/O: C) |
| 19 | VPP | Power Supply for OTP Programming. (I/O: P) |
| 20 | VSH | Positive Source driving voltage. (I/O: C) |
| 21 | VGH | Positive Gate driving voltage. (I/O: C) |
| 22 | VSL | Negative Source driving voltage. (I/O: C) |
| 23 | VGL | Negative Gate driving voltage. (I/O: C) |
| 24 | VCOM | VCOM driving voltage. (I/O: C) |
Sample Ordering & Delivery
ND042EPN400300-A01 4.20-inch engineering samples support prototypes and driver evaluation. Shipping is charged separately; duties and taxes are excluded. Estimated delivery includes preparation. Confirm final terms before payment.
Sample MOQ
3 pcs per modelMinimum 3 pcs per model.
Preparation Time
4 daysAfter order and payment confirmation.
Standard Delivery
Shipping Fee
Transit Time: ～11 days
Total Time: ～15 days
Express Delivery
Shipping Fee
Transit Time: ～4 days
Total Time: ～8 days
4.20 Inch ePaper Display Applications
ND042EPN400300-A01 suits equipment status panels, smart home dashboards, inventory identification labels and low-power IoT terminals. Its landscape monochrome layout can organize measurements, identifiers and status icons, with text density and refresh scheduling assessed for the intended device.
Electronic Shelf Labels
Smart Home Status
IoT Status Displays
Equipment Labels
Matching Driver Board
Driver-board evaluation for ND042EPN400300-A01 must match the UC8176 controller, SPI interface and 24-pin FPC. Check supply rails, logic levels, power sequencing, initialization and waveform handling before reusing an existing library. Plan 400 × 300 image conversion and refresh control for the selected host. NoseDisplay can assess ESP32, STM32, Arduino or Raspberry Pi arrangements; board availability, electrical compatibility and software support are confirmed for each configuration.
Customization Options
For ND042EPN400300-A01, OEM review can cover 24-pin FPC routing, cover-lens dimensions, enclosure fitting and UC8176 driver-board requirements. Optional touch integration and prototype firmware adaptation are evaluated against the selected industrial status-panel or IoT application.
ePaper & FPC Options
Alternative display sizes, colors and FPC configurations can be evaluated for your project.
Touch Integration
Touch panel options can be evaluated according to enclosure and operating requirements.
Cover Lens Options
Custom cover glass or PMMA lenses with optional printing, shape and surface treatments.
Driver Board Support
Driver board and interface solutions can be evaluated for your host platform.
Quality & Compliance Support
We provide quality and compliance documentation for qualified OEM projects
based on the selected module, BOM and manufacturing configuration.
RoHS
EU RoHS compliant materials and process control
REACH
Support REACH regulation compliance
Reliability Testing
Environmental & mechanical reliability testing reports
ESD Control
ESD protection design and testing capability
Quality System
Manufactured under a certified quality management system
Documentation availability and scope are confirmed according to the selected module, BOM, manufacturing source and project requirements.
