Hello, We are currently trying to connect a solar panel to a charger and a lithium battery so the AudioMoth dev can be left in the field for a longer period. The linear battery charger (Adafruit bq25185 USB / DC / Solar Charger with 5V Boost Board) provides a constant 5V to the AudioMoth as long as there is enough sun and the battery is not empty. The problem is that the AudioMoth measures this voltage and writes 5V (or "greater than 4.9V" to be exact) in the metadata of the recordings. As a result, we cannot get a reading of the actual battery voltage. The charger board has a pin (BAT) giving the voltage of the battery. As we want to monitor the battery voltage, we are looking for a way to read the BAT pin with the AudioMoth dev. Would the GPIO port be able to read it? And if yes, would there be a way to alter the metadata so that it would display these new readings? Or perhaps, in a cruder way, to generate and edit a file with the voltage of the battery? Many thanks in advance, Simon

Hi, after formatting my SD-card on my Mac, my HydroMoth doesn't read it anymore (flashing both green and red at the same time). It does still read other SD-cards, so no device problem. How can I make my SD-card work again for the HydroMoth?

Hello. My AM files are in .wav format. I can't find a way to get them in T.wav format.  Thanks for your help!