MicroMoth (μMoth) 1.0.0 ²⁵

Miniature Acoustic Power

Discover MicroMoth, the world's smallest acoustic development board, capable of capturing sounds from audible to ultrasonic frequencies, all in a compact design of 25 x 36 mm and weighing 4 grams.

MicroMoth is the worlds smallest full-spectrum acoustic development board, based on AudioMoth and the Gecko processor range. Just like its namesake the moth, MicroMoth can listen at audible frequencies, well into ultrasonic frequencies. It measures just 25mm x 36mm and weighs 4 grams. It is capable of recording uncompressed audio to microSD card at rates from 8,000 to 384,000 samples per second. It also shares the same supporting software and firmware as AudioMoth.

Features

• EFM32 Gecko processor.
• Capable of recording at sample rates up to 384kHz.
• Records uncompressed WAV files to microSD card.
• Powered by a two pin JST-PH connector.
• Can be used with 3.7 V - 6 V batteries.
• Analog MEMS microphone.
• Analog pre-amplifier with adjustable gain.
• Measures just 26 x 36 mm.
• Configurable USB interface.
• Onboard real-time clock keeps track of time in UTC.
• Exposed header for GPIO expansion.

• Specifications
• In the Box
• Required Items
• Optional Items
• Documents

• Comparing μMoth with AudioMoth 1.2.0

  	μMoth	AudioMoth 1.2.0
  Processor	EFM32 Gecko
  Recording Rates	from 8 kHz up to 384 kHz
  Format	Uncompressed WAV files
  Memory	microSD card slot
  Capacity	1 TB
  Microphone	Analog MEMS microphone
  Interface	Configurable USB
  Time	Onboard Real-time Clock keeps track of time in UTC
  Amplifier	Analog Pre-amplifier with Adjustable Gain
  Exposed Header	for GPIO	for 3.5 mm Jack Mic
  Dimensions	36 x 25 x 5 mm	58 x 48 x 15 mm
  Weight	5 g (w/o battery)	131 g (w/o batteries)
  Power	1x 3.7 V - 6 V battery (not included) Powered by a two pin JST-PH connector	3x AA batteries (not included)

  
  
• • 1x MicroMoth
• • Micro-Lipo Charger for MicroMoth Battery

  Some Compatible Batteries

  • Lithium-Ion Battery - 400mAh
  • Lithium-Ion Battery - 850mAh
  • SanDisk® MicroSD™ Extreme PLUS UHS-I Memory Cards
• • None
• • Operation Manual 
  • MicroMoth Datasheet
  • Click Getting Started for help setting up a new AudioMoth.
  • Check the Support Forum