Flavio Ansovini has developed a service board Ochin CM4 for Raspberry Pi Compute Module 4 that’s particularly designed for drones and robots
The compact service board is designed notably for small tasks like robotics and drone automation and is on the market with a basic public license. An important attribute of this Ochin CM4 is its small dimensions. It doesn’t encompass a MicroSD slot for storage due to which it received’t work with the Compute Module 4 Lite vary because it lacks onboard eMMC storage, in any other case it’s appropriate with all of the Compute Module 4 besides the abovementioned. The service distributes a single USB 2.0 Kind-C port for eMMC flashing, 4 USB 2.0 GHS connectors, one two-lane and one four-lane MIPI CSI digital camera port, three UARTs, one USART, one I2C bus, and analog video output, with networking supplied by the Raspberry Pi CM4’s on-board Wi-Fi and Bluetooth radios.
An important options of Ochin CM4 are as follows:
1. Supported modules – Raspberry Pi CM4 with Broadcom BCM2711 quad-core Cortex-A72   processor, as much as 8GB RAM, as much as 32GB eMMC flash (the CM4 Lite is just not supported since   there’s no microSD card on the board), 4Kp60 H.265 decode, 1080p30 H.264 encoding,   and non-compulsory WiFI 5 and Bluetooth 5.0
2. USB – 1x USB 2.0 Kind-C port
3. Digital camera I/F – 1x 4-lane MIPI CSI connector, 1x 2-lane MIPI CSI connector
4. Dimensions – 55 x 40 x 4.7mm
5. 4x USB 2.0 GHS connector
6. 1x SPI GHS connector
7. 1x I2C GHS connector
8. GHS Connector with UART 0/1 (just one interface selectable), composite video out, 5V,   3.3V, and GND
9. UART 3/5 GHS connector (each interfaces)
