In the world of embedded systems and DIY electronics, few releases caused as much excitement as the Raspberry Pi Compute Module 4 (CM4). It took the power of the Raspberry Pi 4 and placed it into a compact, modular form factor designed for industrial applications and custom carrier boards.
You can download free KiCad files, including schematics and PCB layouts, from the Raspberry Pi Documentation Portal . cm4 94v0 schematics free
You can legally and freely download these official resources directly from the Raspberry Pi documentation portal: The CM4 IO Board Datasheet & Schematic In the world of embedded systems and DIY
The official IO board includes a PCF85063AT RTC, with battery backup capabilities. 4. Designing Your Own Board: Tips & Tools including schematics and PCB layouts