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ST B-CAMS-OMV-MB1683

boards/shields/st_b_cams_omv_mb1683/doc/index.rst

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.. _st_b_cams_omv_mb1683:

ST B-CAMS-OMV-MB1683 ####################

Overview

The camera module bundle (B-CAMS-OMV) provides extension connectors for the MB1379 STMicroelectronics camera module daughterboard or third-party modules like OpenMV and Waveshare modules. It can be used with the STM32 boards featuring a 1 x 30 pin ZIF connector for the connection of multiple cameras to implement computer vision on STM32 microcontrollers easily.

The camera module bundle is compatible with all STM32 Discovery kits and Evaluation boards featuring a ZIF connector, such as the STM32H747I-DISCO, STM32H7B3I-DK, and 32L4R9IDISCOVERY Discovery kits.

.. figure:: st_b_cams_omv.webp :width: 600px :align: center :alt: B-CAMS-OMV-MB1683

 B-CAMS-OMV MB1683 Image (Credit: STMicroelectronics.)

The camera signals go into the shield from one of the supported input connectors (CN1, CN2, CN4), and out of the shield towards Zephyr through the output 30-pin ZIF connector CN5.

Refer to the User manual_ for the pinout of CN1 and CN2.

Waveshare camera board connector CN4 (camera input)

+------------+-----------------+------------+--------------+ | Pin number | Description | Pin number | Description | +============+=================+============+==============+ | 1 | GND | 2 | VCAM | +------------+-----------------+------------+--------------+ | 3 | I2C_SDA | 4 | I2C_SCL | +------------+-----------------+------------+--------------+ | 5 | DCMI_HSYNC | 6 | DCMI_VSYNC | +------------+-----------------+------------+--------------+ | 7 | Camera_CLK | 8 | DCMI_PIXCLK | +------------+-----------------+------------+--------------+ | 9 | DCMI_D6 | 10 | DCMI_D7 | +------------+-----------------+------------+--------------+ | 11 | DCMI_D4 | 12 | DCMI_D5 | +------------+-----------------+------------+--------------+ | 13 | DCMI_D2 | 14 | DCMI_D3 | +------------+-----------------+------------+--------------+ | 15 | DCMI_D0 | 16 | DCMI_D1 | +------------+-----------------+------------+--------------+ | 17 | PWR_EN / LED1 | 18 | RESET# | +------------+-----------------+------------+--------------+

ZIF connector CN5 (camera output)

+------------+-----------------+ | Pin number | Description | +============+=================+ | 1 | 3V3 | +------------+-----------------+ | 2 | GND | +------------+-----------------+ | 3 | I2C_SCL | +------------+-----------------+ | 4 | I2C_SDA | +------------+-----------------+ | 5 | RESET# | +------------+-----------------+ | 6 | PWR_EN / LED1 | +------------+-----------------+ | 7 | SHUTTER | +------------+-----------------+ | 8 | GND | +------------+-----------------+ | 9 | PULLDOWN / LED2 | +------------+-----------------+ | 10 | Camera_CLK | +------------+-----------------+ | 11 | 3V3 | +------------+-----------------+ | 12 | DCMI_VSYNC | +------------+-----------------+ | 13 | 5V (RSU) | +------------+-----------------+ | 14 | DCMI_HSYNC | +------------+-----------------+ | 15 | GND | +------------+-----------------+ | 16 | DCMI_PIXCK | +------------+-----------------+ | 17 | GND | +------------+-----------------+ | 18 | SPI_MISO | +------------+-----------------+ | 19 | SPI_CS | +------------+-----------------+ | 20 | DCMI_D7 | +------------+-----------------+ | 21 | DCMI_D6 | +------------+-----------------+ | 22 | DCMI_D5 | +------------+-----------------+ | 23 | DCMI_D4 | +------------+-----------------+ | 24 | DCMI_D3 | +------------+-----------------+ | 25 | DCMI_D2 | +------------+-----------------+ | 26 | DCMI_D1 | +------------+-----------------+ | 27 | DCMI_D0 | +------------+-----------------+ | 28 | SPI_MOSI | +------------+-----------------+ | 29 | SPI_CLK | +------------+-----------------+ | 30 | GND | +------------+-----------------+

Requirements

The camera module bundle is compatible with all STM32 Discovery kits and Evaluation boards featuring a ZIF connector, such as the STM32H747I-DISCO, STM32H7B3I-DK, and 32L4R9IDISCOVERY Discovery kits.

Usage

The shield can be used in any application by setting SHIELD to _st_b_cams_omv_mb1683 and adding the necessary device tree properties.

Set --shield "st_b_cams_omv_mb1683" when you invoke west build. For example:

.. zephyr-app-commands:: :zephyr-app: samples/drivers/video/capture_to_lvgl :board: stm32h7b3i_dk :shield: st_b_cams_omv_mb1683 :goals: build

References

  • Product page <https://www.st.com/en/evaluation-tools/b-cams-omv.html>_

  • Databrief <https://www.st.com/resource/en/data_brief/b-cams-omv.pdf>_

  • User manual <https://www.st.com/resource/en/user_manual/um2779-camera-module-bundle-for-stm32-boards-stmicroelectronics.pdf>_