Bats emit echo location calls at high frequencies to enable them to ‘see’ in the dark and we humans need to be able to monitor the species to help prevent destruction of their environment during our ever increasing exploitation of the planet. Recording and analysing bat call audio is a great way to achieve this monitoring, especially if it can be fully automated.
This particular bat detector device can be run off 12 volt batteries and be deployed in the wild for days / weeks at a time with data being transmitted every now and again via a LoRa radio link. Essentially, it records 30 second chunks of audio, does a quick analysis of that audio using machine learning, and then renames the audio file with species, confidence and date if it detected a bat. All other recordings are automatically deleted to save disc space and time for the biologist / researcher.
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Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.