Note: This page offers a few options for NANO Base (B) Board and kits, please choose the preferred option:
Note: For the kit/s, an UK plug (Type G) power adapter is included, it is suitable for Malaysia and Singapore, and the UK.
Note: The Official Power Supply Unit (PSU) will be either Black or White depending on availability.
Nano Base (B) Board For CM4
This is the basic baseboard for Raspberry Pi Compute Module 4, it supports both the Lite version (without onboard eMMC) and with eMMC of CM4. Not to forget the wireless and non-wireless versions of CM4.
Same Size As The CM4
Standard CM4 Socket, With Multiple Peripheral Interfaces, Suitable For Narrow Application Environments.
Note: The 40-pin GPIO Headers are NOT pre-soldered out of the box.
What's On Board
- CM4 socket: Suitable for all variants of Compute Module 4, for stacking CM4
- Micro SD card slot: For connecting a Micro SD card with a pre-burnt image (Lite variant ONLY)
- 40-PIN GPIO Pads: Suitable for connecting to various HAT modules, the 40-pin GPIO headers are included but NOT soldered out of the box
- Gigabit Ethernet RJ45 Port/Connector: True Gigabit Ethernet Port
- Power supply / Programming: 5V power supply, or used for eMMC burning
- 3.5mm Audio Jack
- User Button: Programmable button connected to GPIO21 and pulled up by default
- USB2.0 interface: For connecting sorts of USB devices
- CSI interface: 1 × MIPI CSI camera interface
- DSI interface: 1 x MIPI DSI display interface
- MP1658: DC buck circuit to power 3.3V for DSI, CSI, and GPIO
- Mini HDMI Connector: Supports 4K 30fps output
- BOOT slide switch:
- ON: Switch USB to Type C interface, CM4 will enter download mode when powered on (configured as a large-capacity disk through RPI boot)
- OFF: Switch USB to Type-A interface, will not enter download mode when powered on (CM4 will boot from eMMC or Micro SD card)
Note:
- DO NOT hot-plug any devices except the USB and HDMI.
- The USB 2.0, CSI, DSI, and Audio interfaces are disabled by default on CM4 and need to be enabled by the user.
Raspberry Pi Compute Module 4
Compute Module 4 is officially launched on 19th October 2020 with the same or better specs, and there are 32 variants of the module to choose from.
CM4 Lite
The Raspberry Pi Compute Module 4 (CM4) and Compute Module 4 Lite (CM4Lite) are loosely based on the Raspberry Pi 4 Model B. The CM4 has an option for cost-sensitive applications to be supplied without the eMMC fitted; this version is called the CM4Lite. The form factor of the new CM4 and CM4L is different from previous Compute modules, which have all shared a form factor. The change is due to the addition of new interfaces; a second HDMI, PCIe, and Ethernet. The addition of these new interfaces, especially PCIe, would not have been possible while preserving the older form factor. Instead, the electrical interface of the CM4 is via two 100-pin high-density connectors. While the switch to a newer form factor has allowed a reduction in the footprint. The total footprint of the CM4, including the socket, is smaller with the new form factor design.
The back of CM4. The electrical interface of the CM4 is via two 100-pin high-density connectors at the back of the PCB.
Here is the top view of CM4 with Wireless and no eMMC:
Compute Module 4 with built-in Wireless and no eMMC (will need external microSD to boot)
Since the CM4 Lite does not come with onboard eMMC, it will need an external microSD card that has a compatible OS image to boot up. So 1st thing after you get the Nano Base (B) board and a proper power supply, you will need a microSD card (at least 8GB) with a suitable OS image in it, we recommend using the official OS for Raspberry Pi, which is Raspberry Pi OS. Due to the default settings of the USB 2.0 on CM4 (USB2.0 is disabled by default to save power), you will need to edit the config.txt on the OS, so that is the reason we recommend a microSD card pre-loaded with the official operating system and a USB microSD card reader/writer.
A tiny and useful USB MicroSD Card Reader/Writer is included
The MakerDisk MicroSD card is tested and approved by Raspberry Pi. And it comes preloaded with the official Raspberry Pi OS. So it can boot up directly on the Nano Base (B) Board with CM4 Lite. If you want to load another OS, you can still do it using Raspberry Pi Imager which you can download from here. The Raspberry Pi imager is compatible with Windows, macOS, and Unbuntu and even the Raspberry Pi itself can also load OS images.
Anyway, by default, the USB 2.0 on CM4 is DISABLED in the Raspberry Pi OS, this is to save power. You will need to edit a file on the microSD card in order to enable the USB ports on the board. Else, the USB keyboard or mouse will not be able to function, so don't be surprised.
1. Insert the microSD card into the USB MicroSD card Reader/Writer, then plug the USB Reader/Writer into your computer USB port. Please DO NOT format any of the drives.
2. Goto the boot drive and open the config.txt using a plain text editor, e.g.: Notepad
3. Add this command line (from CM4 IO Board datasheet, page 5) into the config.txt file and save it:
dtoverlay=dwc2,dr_mode=host
4. Eject the drive from your computer again, and unplug the USB MicroSD card Reader.
5. Insert the MicroSD card into the Nano Base (B) Board's MicroSD Slot, and mount the CM4 Lite. Connect the USB device, HDMI Cable if there is any, and lastly the Power Adapter.
6. Continue your development :)
CM4 with eMMC
Fresh from the factory, CM4 with onboard eMMC does not contain any image of the Operating System in it, so the 1st thing after you get the CM4 and CM4 Nano (B) Board, you will need to flash a suitable Operating System into the eMMC. To do that, a USB C cable is needed. We have included the USB C cable in the respective kit.
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Anyway, by default, the USB 2.0 on CM4 is DISABLED in the Raspberry Pi OS, this is to save power. You will need to edit a file in the eMMC in order to enable the USB ports on the board. Else, the USB keyboard or mouse will not be able to function, so don't be surprised.
To enable the USB 2.0 ports on the Compute Module 4, you need to edit the boot config file (/boot/config.txt) and add:
dtoverlay=dwc2,dr_mode=host
Then reboot the Pi. Now you should be able to use the built-in USB 2.0 ports!
Note: Do follow the guide by Jeff Geerling in his video or blog post, you should be able to get the CM4 with eMMC boot up successfully.
Of course, you can also check out these accessories in case you do not have one:
Warranty Period: 12 months
International
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