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Open Tag3 Manual
Overview
OpenTag3 records
motion sensors at 50 Hz, and depth, temperature, light, and speed sensors at 1 Hz to
CSV files. Files are 1 hour long by default. There will be a short gap between files. OpenTag3 supports 32
GB or smaller microSD cards.
OpenTag3 is open source. Software is located at https://github.com/loggerhead-instruments/OpenTag3
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Accelerometer, Gyroscope, Magnetometer (MPU9250): 100 Hz
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Pressure/Temperature (MS5837 or Keller PA7LD): 1 Hz
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RGB light level (ISL29125): 1 Hz
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Burn wire release: controls a FET switch to ground which can be used to corrode a stainless steel
wire in seawater
