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yzamanullah
Jan 30, 2025
In Device Support
Hello,
Our team wants to connect a 3-wire (ground, power, and signal) hydrophone buffered by an op-amp circuit to the AudioMoth Dev and we were wondering how we could do so. The application notes explain how to connect buffered hydrophones that run off 2 wire plug-in power, but no information for 3-wire hydrophones. We experimented and realized that we can hold the signal pin down with a 1K resistor. While this works, we are hoping to deploy many many of these around Greenland for months at a time and we don’t want to waste power. Is there a more power efficient way to make this work?
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