I received the audiomoth at the end of May. As I had someone from the bat conservation trust arriving I thought it would be a good time to set up. The instructions for set up are clear and although the device was placed three times in a known bat locality I did not get any files recorded. The green light flashes but the red light will flash briefly presumably to indicate a begining of a recording duration. I have also followed the instructions on the British Bat Survey webpage and played the tone but getting nothing. The batteries are fine. The SD card is he one supplied with the device and it is correctly formatted. It is probably something daft I am not doing. Any idea?