The Flir Blackfly S series of cameras have a GPIO interface that is exposed via a military-style DIN connector. The FSU Psychology Instrument Development shop generously attached a section of Ethernet cable to the DIN connector. For flexibility, we attached a RJ-45 connector to the opposite end of the cable. Our behavioral controllers expose TTL-level IO via a series of BNC connectors. To facilitate easy connection of our behavioral controller IO to the camera GPIO, we created a small RJ-45 to BNC adapter board.
The board has a very simple design that connects the RJ-45 pins to the BNC outputs. Two of the GPIO pins are opto-isolated inside the camera. These two GPIO pins and their associated BNC connectors are connected to their own ground plane that returns to the opto-isolated ground connection.
The other two GPIO pins are not opto-isolated and are connected to the power ground of the camera. These two GPIO pins and their associated BNC connectors return via a separate ground plane connected to the power ground.
The board is setup for active HIGH inputs. Each input is pulled low using 1k resistors.
Four, M4-sized mounting holes are placed on the board for convenience.
This project is licensed under GNU General Public License v3.0. You can find the included copy of the license here. For more information about the license and its terms, please visit SPDX