Esperdyne

Ravi Umadi mail

OSHWA UID

DE000166 Project Website

Certification Date

January 28, 2026

Country

Germany

Esperdyne - Open-Source Dual-Band Ultrasound Bat Detector & Recorder Esperdyne is an open-source, dual-channel heterodyne bat detector and ultrasound recorder built around the ESP32-S3 microcontroller. Designed for bioacoustic field surveys, it provides real-time stereo monitoring at 192 kHz with independent frequency tuning for each channel (10-85 kHz in 5 kHz steps), enabling simultaneous monitoring of FM and CF bat calls. Publication (soon): https://doi.org/10.1111/2041-210x.70241

Version


Licenses
Hardware
CERN-OHL-S-2.0
Software
GPL-3.0-only
Documentation
CC-BY-SA-4.0
View Documentation

Certification mark

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Project Type
Science
Education
Electronics
Environmental
Sound
Tool
Keywords
Bioacoustics, bat detectors, ultrasound recorder, field surveys, conservation technology

Citations