Bar30 Pressure Sensor
Arduino software library is available here.
The schematic and board layout are designed in EagleCAD.
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. With 0.2 bar 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 depth) and communicates over I2C. It comes standard with a 4-pin DF13 connector and compatible with most DroneCode compatible boards including the APM2.6, PixHawk, and others.
- Measure up to 300m water depth with 2mm resolution
- Reverse polarity protection
- Standard DF13 connector for connection to DroneCode boards such as APM, PixHawk, Navio2, etc.
- Sealed in a bulkhead penetrator for easy installation into any 10mm hole
The Bar30 sensor is compatible with any device with 3.3V I2C logic. When using with a 5V device, such as an Arduino Uno, it is necessary to use a logic level converter.
|Supply Voltage||-||2.5-5.5 volts|
|I2C Logic Voltage||-||2.5-3.6 volts|
|Peak Current||-||1.25 mA|
|Maximum Mechanical Pressure||-||50 bar|
|Operating Pressure||-||0-30 bar [up to 1000 ft (300 m) in water]|
|Absolute Accuracy (0-40°C)||From 0-6 bar||+/- 50 mbar (51 cm in freshwater)|
|From 0-20 bar||+/- 100 mbar (102 cm in freshwater)|
|From 0-30 bar||+/- 200 mbar (204 cm in freshwater)|
|Absolute Accuracy (-25-85°C)||From 0-6 bar||+/- 100 mbar (102 cm in freshwater)|
|From 0-20 bar||+/- 200 mbar (204 cm in freshwater)|
|From 0-30 bar||+/- 400 mbar (408 cm in freshwater)|
|Operating Temperature||-||-20 to +85°C|
|Storage Temperature||-||-40 to +85°C|
|Absolute Accuracy||From 0-10 bar at 0-60°C||+/- 1.5°C|
|From 0-30 bar at -20-85°C||+/- 4.0°C|
|Wire Colors||Green - I2C Clock (SCL)|
|White - I2C Data (SDA)|
|Red - Positive (2.5-5.5V)|
|Black - Ground|
|Overall Length||37 mm|
|Thread Size||M10x1.5 20 mm threaded|
|Recommended Through Hole Size||10-11 mm|
|Wrench Flats||16 mm|
- Bulkhead hole size: 10-10.5mm
- Wire length: 11" (280mm)
The Bar30 Pressure Sensor Hardware Design is released under the MIT License.
0.0 - Under development
0.1 - First production version (marked with rev4)
0.2 - Minor layout changes (marked with rev5)