TOFU is a carrier printed circuit board for the Raspberry Pi Compute Module 4. Inspired by our daily needs, it is intended for industrial applications but may also be used by enthusiasts looking for a robust and complete solution on a compact footprint.
Available with three CM4 variants - in the drop-down menu:
- 16 or 32GB of onboard eMMC
- 2GB of RAM
- Wireless options
--- Engineering Notice ---
The board has been updated to version V1.1 and V1.0 is no longer produced. V1.1 does not impact features, design, or performance in any way but gives more design flexibility by moving away components placed underneath the Compute Module.
All present and future shipments will be V1.1. The version number is found on the packaging and on the board itself.
The complete changelog is available in the documentation linked below.
==> Documentation: Link HERE
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The size of the board is 9x9cm, and its main features are :
- Compute Module 4 socket
- Standard Raspberry Pi 40-pin GPIO header
- Gigabit Ethernet port with PoE through the official Raspberry Pi PoE HAT
- M.2 2242/3042 socket (key B) socket with micro-SIM cardholder (M.2 has been successfully tested to interface NVMe SSDs and USB 3G/4G network cards)
- 3x USB-A ports
- Full-size HDMI port
- Camera and display ports (newer 22pin version, flexible adapter cables can be purchased separately)
- Two power inputs for industrial connectors (2.1mm barrel and standard 3.5mm terminal block)
- Large input voltage range, from 7.5 to 28V. Also available on 3x1 header pins for sharing to HATs requiring higher voltages. (Wall plug AC-DC power supply not included, recommended power rating: >24W)
- Micro SD card slot. Only used for CM4Lite (no eMMC memory)
- USB-C port to use as an OTG device and for programming purposes. May also be used to power the CM4, with power constraints if used with peripherals.
- Circuit protection was added for safety reasons (ESD, over- and reverse-current protections)
- Standard Raspberry Pi, CM4, and 4 additional M3 mounting holes for design flexibility
Raspberry Pi is a trademark of the Raspberry Pi Foundation