A few weeks ago we received a request to build a motion controlled audio trap.  When a video camera is placed in a weatherproof enclosure the recorded audio is muffled and pretty much unusable.  So this customer wanted a small weatherproof housing holding a Zoom H2n audio recorder and a external microphone.  Here is what we came up with.The TRLcam control board interfaces with the Zoom H2n and tells it when to turn on, how long to record and when to turn off.  The row of switches set the record time, day only, night only, 24/7 and activate the internal PIR motion detector.  The six AA batteries power the Zoom and the recording controller.  There is a connector on the bottom of the housing that allows a remote input from a camera trap, TRLcam long range remote or other remote activation device.  There is also a 3.5mm connector for a microphone.

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