Funding Opportunity / 

Opportunity: μMoth v1.1 Group buy

GroupGets has a Group buy campaign for a μMoth v1.1(Round 2), that runs till  Sat, 06 Nov 2021 12:55:00 PDT. The μMoth v1.1 goes for a Single-unit price of  $99.99 + shipping.To join this buy, kindly visit this page

About the Group buy

μMoth v1.1 (Round 2)

  • Single-unit price: $99.99 + shipping
  • Campaign scheduled end date: Sat, 06 Nov 2021 12:55:00 PDT
  • Backers: 44
  • Target: 100
  • Funded: 115

Product Details


μMoth v1.1 (Round 2)

Manufacturer Part #

Open Acoustic Devices

Product Description

μMoth (“micro-moth”) is the worlds smallest full-spectrum acoustic development board, based on AudioMoth and the Gecko processor range. Just like its namesake the moth, μMoth 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.


  • 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 

Compatible battery from Sparkfun

Important Notes

  • International Duties and Taxes are not included, you may be required to pay these before delivery.
  • Lead time is subject to change
  • Lead time before shipment is 30 days from the date that the campaign closes 

Purchase Information

Unit Deliverable

One μMoth v1.1

Unit Price


Campaign Part #



Campaign active, scheduled end date: Sat, 06 Nov 2021 12:55:00 PDT

Factory Lead Time

30 Days

Options and Add-Ons

Micro USB Cable


300.0 mm (0.98') Micro USB Cable

64GB Micro SD Card


SanDisk Extreme® microSDHC™ UHS-I w/adapter- 64GB

For more information, kindly visit this page

This campaign opportunity was published in GroupGets website and republished with permission