Boardoza E-Paper Driver 24 Pin Breakout Board

The Boardoza E-Paper Driver 24 Pin Breakout Board makes it easy to add a clear, paper-like display to your microcontroller projects. E-paper displays are easy to read in bright environments and can keep the last image visible even after the power is turned off. Since they mainly consume power while updating the screen, they are a great choice for battery-powered applications such as electronic shelf labels, smart badges, price tags, information panels, industrial indicators, and low-power IoT devices.

The board includes a standard 24-pin FFC/FPC connector and the power circuitry required to operate compatible e-paper panels, so there is no need to build a separate driver circuit. It supports SPI and I²C-compatible signals, provides a busy-status output to indicate when the display is refreshing, and can be used with compatible black-and-white and multi-color e-paper panels, including black-white-red and black-white-red-yellow display types.

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Front Side	Back Side

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Key Features

• Integrated DC-DC Booster: Generates the required positive and negative gate voltages for E-Paper panel driving.
• Ultra-Low Power Operation: Optimized for battery-powered and energy-efficient display systems.
• Hardware Busy Monitoring: Includes a dedicated BSY (Busy) pin for display refresh status indication.
• Flexible Communication: Supports SPI and I²C communication for simple MCU integration.
• Reliable Display Driving: Stable power sequencing improves image consistency and display contrast performance.
• Monochrome and Multi-Color Panel Support: Supports compatible 2-color, 3-color, and 4-color 24-pin E-Paper panels, including black/white, black/white/red, and black/white/red/yellow display types.

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Technical Specifications

Model: E-Paper Display Driver
Manufacturer: Boardoza
Communication Interface: SPI / I²C-Compatible Signaling
Input Voltage: 3.3V
Display Connector: 24-Pin E-Paper Connector
Integrated Power Circuit: DC-DC Booster with Gate Voltage Generation
Busy Status Output: Available (BSY Pin)
Operating Temperature: -40°C to +85°C
Board Dimensions: 40mm x 20mm

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Board Pinout

( J1 ) Communication Connector

Pin Number	Pin Name	Description
1	3.3V	3.3V Power Supply Input
2	GND	Ground
3	DIN	SPI Data Input (MOSI) / SDA
4	SCK	SPI Clock Input / SCL
5	nCS	SPI Chip Select (Active Low)
6	D/C	Data / Command Selection
7	RST	Hardware Reset Input
8	BSY	Busy Status Output

( J2 ) 24-Pin E-Paper Display Connector

Pin Number	Pin Name	Description
1	NC	Not Connected
2	GDR	Gate Driver Control Signal
3	RESE	Current Sense / Resistor Sense Signal
4	VGL	Negative Gate Driving Voltage
5	VGH	Positive Gate Driving Voltage
6	TSCL	Touch / Auxiliary Serial Clock
7	TSDA	Touch / Auxiliary Serial Data
8	BS	Interface Selection Signal
9	BUSY	Busy Status Output
10	RES	Hardware Reset Input
11	D/C	Data / Command Selection
12	CS	SPI Chip Select
13	SCLK	SPI Clock Input
14	SDI	SPI Data Input
15	VDDIO	I/O Logic Power Supply
16	VCI	Power Supply Input
17	VSS	Ground
18	VDD	Logic Power Supply
19	VPP	Programming / Panel Power Voltage
20	VSH1	Positive Source Driving Voltage
21	PVGH	Positive Gate Pump Voltage
22	VSL	Negative Source Driving Voltage
23	PVGL	Negative Gate Pump Voltage
24	VCOM	Common Electrode Voltage

JP1 Solder Jumper

JP1 is used to configure the BS interface selection pin of the connected E-Paper panel.
By closing JP1, the BS pin is connected to GND, allowing compatible displays to operate in 3-line SPI mode.

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Board Dimensions

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Step Files

Boardoza E-Paper Driver 24 Pin.step

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Datasheet

A dedicated datasheet is not provided because this board functions as a generic E-Paper driver interface designed to support multiple compatible 24-pin E-Paper display panels with varying specifications.

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Version History

• V1.0.0 - Initial Release

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Support

• If you have any questions or need support, please contact [email protected]

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License

This repository contains both hardware and software components:

Hardware Design

All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.

Software/Firmware

All software and firmware are licensed under BSD 3-Clause License.