David and I had the pleasure of building a camera trap around a Sony a7S and Atomos Shogun this last week. Here is what we came up with.

The Sony a7S outputs uncompressed video through its HDMI port. This video is recorded by the Shogun 4K monitor/recorder. A 15 second clip at 4K ends up being a 1.8gb video file. The Shogun has a SSD to capture the large file.

We tapped into the Shogun and a7S to be able to control the timing and functions of the pieces of the system. Everything is controlled by our custom controller using a TI MSP430 micro controller. The options are set by the dipswitch on the control board. The customer can control the length of the video, day only, night only, 24/7, internal PIR on-off, video or still pictures and how long the shutter button is held down in the still picture mode. There are also remote ports for power and a remote motion detector or a TRLcam long range remote.

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