Ochin Raspberry Pi CM4 Carrier Board That Can Design Small-Sized Drones and Robots

By Supriya Mangalpalli

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Flavio Ansovini has developed a carrier board Ochin CM4 for Raspberry Pi Compute Module 4 that is specifically designed for drones and robots

Ochin Raspberry Pi CM4 Carrier Board (Credit: Flavio Ansovini )

The compact carrier board is designed particularly for small projects like robotics and drone automation and is available with a general public license. The most important attribute of this Ochin CM4 is its small dimensions. It does not consist of a MicroSD slot for storage because of which it won’t work with the Compute Module 4 Lite range as it lacks onboard eMMC storage, otherwise it’s compatible with all the Compute Module 4 except the abovementioned. The carrier distributes a single USB 2.0 Type-C port for eMMC flashing, four USB 2.0 GHS connectors, one two-lane and one four-lane MIPI CSI camera port, three UARTs, one USART, one I2C bus, and analog video output, with networking provided by the Raspberry Pi CM4’s on-board Wi-Fi and Bluetooth radios.

The most important features of Ochin CM4 are as follows:
1. Supported modules – Raspberry Pi CM4 with Broadcom BCM2711 quad-core Cortex-A72      processor, up to 8GB RAM, up to 32GB eMMC flash (the CM4 Lite is not supported since      there’s no microSD card on the board), 4Kp60 H.265 decode, 1080p30 H.264 encoding,      and optional WiFI 5 and Bluetooth 5.0
2. USB – 1x USB 2.0 Type-C port
3. 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 (only one interface selectable), composite video out, 5V,      3.3V, and GND
9. UART 3/5 GHS connector (both interfaces)


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