AudioMoth Dev Is an Acoustic Development Board

Open Acoustic Devices has launched the AudioMoth Dev, a development board version of their popular acoustic monitoring device. Based on the Gecko processor from Silicon Labs, it uses JST-PH headers to expose useful peripherals for modular expansion and relies on a battery pack to operate. The campaign is already underway on GroupGets, scheduled to end on September 19th. Anyone interested can purchase the AudioMoth Dev for $79.99.

The AudioMoth Dev features an EFM32 Wonder Gecko microcontroller, featuring a 48MHz 32-bit processor along with DSP instruction support and a floating-point unit. It provides 256KB of flash and 32KB RAM, and you can add up to 256KB SRAM as well.

Meanwhile, the onboard analog MEMS microphone has a sensitivity range of 38dBC/Pa, 63dBA SNR, 10Hz to 192kHz. Sample rates can even reach up to 384 kHz. The 3.5 mm jack socket allows users to connect an electric condenser microphone, which is not compatible with the case. Users can take advantage of the Micro USB-B port for power, reconfiguration, and reprogramming the flash.

This device includes five separate JST-PH style headers for board-board/board-case implementation. A two-pin JST-PH header allows external power supply (3.3V - 6V) connectivity. The three-pin JST-PH header supports external switch connectivity. It also consists of a two-pin JST-PH header, enabling users to power external 3V boards or any AudioMoth products. The four-pin JST-PH header can be utilized for multi-operational 3V general-purpose input/output (GPIO). Lastly, it features a 6pink serial wire debug port. Users can slot in a MicroSD card, too.

Those wishing to develop their own acoustic monitoring systems can get their AudioMoth Devs on GroupGets now.