The OAK-FFC-3P (DM1090FFC) baseboard has three FFC interfaces which allow for two 2-lane MIPI camera modules i.e. OAK-FFC-OV9282 (stereo pair) and one OAK-FFC-IMX378 RGB camera module. There is also a chance to connect three 2-lane MIPI camera modules i.e. OAK-FFC-OV9282 if DM0249 RGB camera module is not required.
Please note that only revision R1M1E1 and newer camera modules can be connected to the OAK-FFC-3P. With OAK-FFC-3P we gained support for 22-pin RPi camera interface. For that you will need a FFC from Arducam, which converts 26-pin Luxonis camera pinout to 22 pin RPi camera pinout.
Here’s a list of compatible Arducam cameras with the OAK-FFC-3P. Those cameras have a M12 mount, so you can use different lenses to get custom FoV (they have wide and narrow angle M12 lenses).
In addition, IMU (over SPI) sensor was also added to the OAK-FFC-3P.
Dimensions and Weight¶
Width: 60 mm
Height: 40 mm
Length: 22 mm (PCBA and heatsink)
3x OAK-FFC-OV9282 (DM0250TG_R1M1E1) mono camera module interfaces or
2x OAK-FFC-OV9282 (DM0250TG_R1M1E1) and 1x OAK-FFC-IMX378 (DM0249_R1M1E1) RGB camera module interface
5V power input via barrel jack
USB 3.1 Gen 1 Type-C
Interface for Luxnois OAK-SoM
Pads for OAK-SoM1.8V SPI
Pads for OAK-SoM 3.3V SDIO
Pads for OAK-SoM 1.8V Aux Signals (I2C, UART, GPIO)
5V Fan OR USB Type-C
Design files produced with Altium Designer 20
Minimal and maximal perceiving distances of the camera¶
Minimal depth perceiving distance of the camera depends on mono camera FOV, resolution, baseline and stereo depth mode, more info is available on the Stereo Depth documentation.
Since OAK-FFC-3P has modular mono cameras, it also has a custom baseline (depending on how it is set up). The formulas for minimal depth perceiving distances are:
Min distance (800P) =
882.5 * baseline / 95
Min distance (400P) =
441.25 * baseline / 95
Min distance with extended disparity (800P) =
882.5 * baseline / 190
Min distance with extended disparity (400P) =
max(441.25 * baseline / 190, 19.6)
Maximal perceiving distance for OAK-FFC-3P =
baseline/2 * tan((90 - 71.9/1280) * PI/180)
For more information about the maximum distance see the Stereo Depth documentation.
The OAK-FFC-3P is powered via USB Type-C or from a 5V, 5.5m x 2.5mm barrel jack, and interfaces to a host via USB 3.1 Gen1 Type-C. With cameras and the OAK-SoM, total power consumption usually stays below the 900ma specification of USB 3, but Type-C power of 1.5A or greater is recommended.
Interfacing with the OAK-SoM is also possible with OAK-FFC-3P connector pads J3, J4, and J5. These pads are designed for the Amphenol/FCI 20021121-00010T1LF or equivalent. Please refer to the schematics for pinout information.
The reset button resets the OAK-SoM only. The boot button overrides boot mode to USB boot if different boot mode is set in NOR Flash and BW1099EMB SoM is used.
The 5V LED indicates 5V power is present on the OAK-FFC-3P. The PG LED indicates “power good” from the OAK-SoM. The “RUN” LED indicates that the OAK-SoM is not in reset.
For FFC cables we use Molex series 15166. Along with the OAK-FFC-3P, we ship 26 pin count, same-sided, 152mm cables (part number 151660281). If you would like to use shorter/longer FFC cables, you can get them here.
USB designs with FFC camera boards contain 3 different iterations, below is a flowchart which tries to explain the design progress flow:
The first two revisions (BW1092FFC and DM1098FFC) were also named F1, and the newest revision (DM1090FFC) is named F2.