The Bar30 pressure sensor is a high-pressure, high-resolution pressure sensor that is sealed from the water and ready to install in a watertight enclosure on your ROV or AUV. With 0.2 mbar resolution, it has an amazing depth measurement resolution of 2mm in the water column!
The sensor is the Measurement Specialties MS5837-30BA, which can measure up to 30 bar (300m/1000ft depth) and communicates over I2C. It operates on 3.3V I2C voltage but can accept power input up to 5.5V. It comes standard with a 4-pin DF13 connector that is compatible with mostDroneCode compatible boards including the APM2.6, PixHawk, and others.
This sensor includes a temperature sensor accurate to ±1°C, with data also accessible through I2C. If you need something with more temperature accuracy, please check out the Celsius Temperature Sensor.
The anodized aluminum body was designed around the cable penetrator design and is compatible with all of the watertight enclosures.
The electrical schematic and board layout are open-source and the design files are available below. Feel free to adapt for your own needs.
- 1 x Bar30 Pressure Sensor
- 1 x O-ring
- 1 x Nut
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