PCB for Bar Depth/Pressure Sensors

$42.00 – $50.00

These are the board-level versions of our Bar Depth and Pressure Sensors. They’re basically the pressure sensor on a PCB with solder pads for the data and power connections—perfect for tight integration into projects.

PCB type

Clear

SKU: BAR-PCB-VP
HS Code: 9026.20.4000

Description

Product Description

These are the board-level versions of our Bar Depth and Pressure Sensors for tight integration into projects.

There are two models:

The Bar02 is a low-pressure, ultra-high resolution sensor using the Measurement Specialties MS5837-02BA. It measures up to 2 bar (about 10 meters water depth) with a depth resolution of just 0.16 mm and can also measure in-air altitude with 13 cm resolution. This makes it ideal for shallow-water devices where a high level of resolution is required. It includes a temperature sensor accurate to ±2 °C and is supported in ArduSub 4.7 and later.

The Bar30 is a high-pressure sensor using the Measurement Specialties MS5837-30BA. It measures up to 30 bar (about 300 meters water depth) with a depth resolution of 2 mm, making it a great choice for deep-water ROVs and general underwater instrumentation. The built-in temperature sensor has ±4 °C accuracy, and is supported by ArduSub and other ArduPilot firmware.

Both communicate via I²C and operate on 3.3 V logic (with 5.5 V max power input). The PCB includes four solder pads for ground, 2.5–5.5 V power, and 3.3 V I²C connections.

Product Description

These are the board-level versions of our Bar Depth and Pressure Sensors for tight integration into projects.

There are two models:

Both communicate via I²C and operate on 3.3 V logic (with 5.5 V max power input). The PCB includes four solder pads for ground, 2.5–5.5 V power, and 3.3 V I²C connections.

1 x Bar PCB only

Technical Details

Specifications

Model	Bar02	Bar30
Electrical
Supply Voltage (Vin)	2.5–5.5 V
I²C Logic Voltage (SDA and SCL)	2.5–3.6 V
Peak Current	1.25 mA
Performance
In Air Operating Temperature	-20 to 85°C
In Water Operating Temperature	2 to 40°C
Maximum Mechanical Pressure ¹	10 bar	50 bar
Operating Pressure (-20 to 85 °C)	0.3–1.2 bar 0.01–2 bar (extended)	0–30 bar
Operating Depth ²	0–10 m	0–295.6 m
Relative Accuracy	0 to 60°C: ± 2 mbar (2 cm in fresh water) -20 to 85°C: ± 4 mbar (4 cm in fresh water) ³	–
Absolute Accuracy	–	0 to 45°C: ±200 mbar (204 cm in fresh water) -20 to 85°C: ± 400 mbar (409 cm in fresh water)
Resolution	.016 mbar (.16 mm in fresh water, 13cm in air at sea level)	.2 mbar (2 mm in fresh water)
Temperature Sensor Relative Accuracy	± 2°C	–
Temperature Sensor Absolute Accuracy	–	± 4°C
Physical
Storage Temperature	-40 to 85°C
Maximum Continuous Submersion ⁴	24 hrs
Interfacing
ArduSub Compatible	Yes (>= 4.7)	Yes
Development Libraries	MS5837 Arduino MS5837 Python MS5xxx ArduPilot
I²C Address	0x76
¹ Maximum mechanical pressure is the highest pressure the sensor can withstand before sustaining permanent damage. ² Depth values are calculated assuming 1 bar atmospheric pressure and freshwater density (1000 kg/m³); actual values will vary with fluid density. ³ Applies only to standard pressure range. For extended pressure range, please see MS5837-02BA datasheet. ⁴ Sensing element must be dried for at least 2 hours daily to maintain accuracy; long-term submersion may damage the sensor.