2.8″ Touch Screen Expansion For Raspberry Pi Compute Module 4, Optical Bonding Display, Optional Interface Expander

€55.61 - €67.11

Interface Expander

NOT Included Included

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Description
Package Content

Details

2.8″ touch screen expansion for Raspberry Pi Compute Module 4, Optical Bonding display, Gigabit Ethernet, USB2.0, optional interface expander

2.8″ touch screen expansion board

Designed for Raspberry Pi Compute Module 4

Ordering options

Touch screen expansion board only
Allows directly attaching the CM4, providing 2.8″ IPS touch screen for all variants of CM4, also supports camera and video output.

Touch screen expansion board + interface expander
The touch screen expansion board and an additional interface expander, with Gigabit Ethernet port, M.2 slot for connecting communication module or SSD, and more USB ports.

Please check the Package Content section for exact part list.

Optical Bonding touch screen

2.8″ display with 5-point capacitive touch control, better touch experience from the Optical Bonding screen, together with 6H toughened glass panel, more safe to use

Just slightly larger than CM4

for reference ONLY, CM4 is NOT included.

Touch Screen Expansion Board introduction

CM4 socket	suitable for all variants of Compute Module 4
USB	USB 2.0 × 1
connector	MIPI CSI 22PIN 0.5mm camera connector
Display	2.8″ Optical Bonding screen, 480 × 640 pixels, 5-point capacitive touch, toughened glass panel
Video	micro HDMI × 1, supports 4K 30fps output
Storage	MicroSD card socket for Compute Module 4 Lite (without eMMC) variants
Power input	5V

optional Interface expander introduction

Networking	Gigabit Ethernet RJ45
Networking	M.2 M KEY, support NVME SSD or communication module
USB	USB 2.0 × 3

Application Example

Suitable for Raspberry Pi applications or other industrial occasions requiring multi-function peripherals

Outline dimensions

Resources & Services

WIKI: CM4-DISP-BASE-2.8A

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

What's the differences

CM4 Base Board	Interface count and specifications
CM4 Base Board	PoE	Gigabit ETH	40PIN GPIO	PCIe	USB①	DSI	HDMI	CSI	RTC	Fan Header	Power Input	Features
NANO A			√		2.0×1			×1			5V	CM4 sized
NANO B		×1	√		2.0×1	×1	×1	×1			5V	CM4 sized
NANO C			√		2.0×1	×1	×1	×1			5V	Onboard Camera
mini Base A		×1	√	M.2 M	2.0×4	×1	×2	×2		5V	5V	mini size
mini Base B		×1	√	M.2 M	2.0×4	×1	×2	×2	√	5V	5V	mini size
mini Base C		×1	√	M.2 M	2.0×2		×1	×2	√	5V	5V	Dedicated 40PIN LCD Connector
Touch screen		×1		M.2 M	2.0×4		×1	×1			5V	IPS screen
Mini Dual Gigabit		×2	√		2.0×1					5V SH1.0	5V	dual ETH
Binocular camera		×1	√	M.2 M	2.0×4		×2				5V	dual 8MP cameras
4CH RS485		×1			2.0×2		×1	×2	×1	5V	7-36V	dual ETH
WIFI6 DUAL ETH		×1	√	M.2 E	2.0×3	×1	×2	×2	×1	5/12V	7-36V	WIFI6 dual ETH
Dual Gigabit ETH		×2	√		3.0×3	×1	×2	×2	√	5/12V	7-36V
IoT Dual Gigabit ETH		×2	√		3.0×2	×1	×2	×2	√	5/12V	5V	5G/4G support
IoT Base	√	×1		Gen2×1	2.0×2	×2	×2	×2	√	5/12V	7-36V	5G/4G support RS232 RS485 ADC
PoE Base (B)	√	×1	√	Gen2×1	2.0×4	×2	×2	×2	√	5/12V	5V	RS232 RS485
PoE UPS Base	√	×1	√	M.2 M	2.0×4	×1	×2	×2	√	5/12V	7-36V	UPS
PoE Base	√	×1	√		3.0×4	×2	×2	×2	√	5/12V	7-36V
Raspberry Pi official	②	×1	√	Gen2×1	2.0×4	×2	×2	×2	√	12V	12V
Wireless base		×1		M.2 B / Mini-PCIe	2.0×3		×1	×1	√	5/12V	5V or 7-36V	5G/4G support RS485 CAN rail-mount
UPS Wireless base		×1		M.2 B	2.0×3		×1	×1	√	5/12V	5V or 7-36V	With UPS 5G/4G support RS485 CAN rail-mount
NAS Mini Computer		×2	√	M.2 M×2/ Mini-PCIe	3.0×2		×2	×2	√		5V	dual M.2 M KEY slots
5″ touch screen	②	×1	√	M.2 M	2.0×4		×1	×2	√	5/12V	5V
7″ all-in-one		×1		M.2 M	2.0×4	used	×1	used	√	5/12V used	7-36V	touch screen camera speaker
13.3″ all-in-one		×1			2.0×2						12V	HD touch screen
13.3″ Magic Mirror		×1			2.0×2						12V	HD screen, Speech Assistant
Note	① USB 3.0 is equivalent to USB 3.2 Gen1 ② There's PoE header only on the Raspberry Pi official IO board without PoE circuit, that means additional PoE module is required for the official IO board to enable PoE feature. Unless otherwise specified, the PoE feature here stands for integrating 802.3af-compliant PoE circuit (5V/2.5A).