5" Touch Screen Expansion for Raspberry Pi CM4

This all-in-one expansion board breaks out your Raspberry Pi Compute Module 4 with a buffet of useful IO and connection options, whilst also providing a 5" 800x480 5-point capacitive touch screen!

The rear of the board provides a huge list of useful breakouts for your CM4 board:

• M.2 slot (for 2242-size NVMe M-Key SSD)
  • Not compatible with the Raspberry Pi SSD (as it's only 2230 size)
• 4x USB 2.0
• Gigabit Ethernet
• Dual MINI CSI-2 Ports (15-pin 1mm pitch) for Raspberry Pi Camera Modules
• RTC with backup battery socket (CR1220)
• 40-pin GPIO header
• PoE Header (PoE HAT required for PoE operation)
• BOOT switch
• Micro-SD card slot (when using Lite CM4 only)
• USB-C power/programming port
• Full-size HDMI port (supports 4K 30FPS)
• 4-pin fan header (ideal fan option here!)
• System function selector pads
• I2C BUS selection pads
• RTC interrupt toggle pads
• VREF selection pads
• Indication LEDs

All of this along with a 5" display with a respectable 800x480 resolution with 5-point capacitive touch!

We recommend fully reading the product wiki before purchasing to ensure a full understanding of the feature set and any limitations/compatibility for your intended project or usage.

Notes

• The USB SLAVE interface is used to burn the image and cannot be used as an OTG interface.
• In normal use, it is necessary to provide at least 5V 2.5A power supply for CM4. Otherwise, there may be problems such as automatic shutdown and frequency reduction
• Onboard default 4-way USB 2.0 interface.
• Supports PoE via 4-pin header, additional PoE HAT is required for PoE
• The display requires a driver
• Do not plug and unplug any device except USB and HDMI while the baseboard is working
• If the fan needs to be replaced, please confirm the fan voltage and then power on

Specifications

CM4 Socket	Suitable for all variants of CM4
Networking	Gigabit Ethernet RJ45 connector
	M.2 M KEY, supports 2242-size NVME SSD
PoE	PoE header (additional PoE HAT required)
USB	USB 2.0 × 4
Display	5″ screen, 800 × 480 pixels 5-point capacitive touch
Camera	MIPI CSI-2 port × 2 (15pin 1.0mm FPC)
Video	HDMI, supports 4K 30fps output
RTC	Real-time clock with battery socket + ability to wake CM4
Storage	MicroSD socket for CM4 Lite (without eMMC) variants
Fan Header	Allows speed adjustment/measurement, 5V / 12V
Power Input	5V
Dimensions	127.7 × 87.45mm

Package Contents

• 1x  5″ Touch Screen Expansion for Raspberry Pi CM4

CM4, SSD, MicroSD and PoE HAT not included

Resources

• Product Wiki