I recently purchased two Audiomoths with IPX7 cases. Each was deployed about 8 meters above the ground on extension poles. They are in open areas exposed to occasional high wind and rain. They are about 500 meters or so apart.

When changing batteries a few days ago, I noticed the Gore vent in one case was ruptured. I don't know exactly when the vent was ruptured. I brought home the audiomoth and case to replace the vent. I also looked at the recorded files. The files recorded as expected in terms of names, timing, etc.

However, each file contains primarily static. Animal sounds can sometimes be heard through the static, but static dominants and renders the recordings useless.

I placed the Audiomoth in a sealed ziptop bag with dessicant bags for three days. I then made a test recording by switching on the Audiomoth to the default setting. The test…

Is there any possibility that a bad batch of GPS hats were shipped? I bought three; one powered up with appropriate LED flashes for one programming/recording cycle, then failed. The other two do not power up at all. I checked my soldering and the voltage at the supply pads, everything looks good.

Note that I am well experienced with that particular GPS receiver, the CDtop PA1616S, in other settings and forms, especially the Adafruit Ultimate GPS version. I had not used it in the form of the Audiomoth GPS hat before. PA1616S

The recorders themselves are very nice, thank you for supplying them.

David Kazdan

Case Western Reserve University

Department of Electrical Engineering

Is there a pcb layout and circuit diagram available for this. Which are the vulnerable parts. It has no LEDs and is not recognised by the configuartion app.

Thanks

Robert

Hello. I have a new AudioMoth that I am trialling before putting out in the field. I am using a SanDisk Extreme and Duracell Optimum batteries. Each time I start recording (switching to Custom), I get the device recording and saving files and then it simply stops recording. Both LEDs flash suggesting a recording error. I have formatted the SD Card and also run a write/read test on it (all good). The length of time before stopping seems to be between 1 and 6 hours.

I've attached the config file, the recording file summary from the last test, and the SD card RW results.

Any suggestions would be greatly appreciated.

Thank you,

Martin