The OSL I2C Barometric pressure sensor uses the i2c protocol to output atmospheric pressure readings. Therefore integration is simplified with a digital interface. Code examples and full support are included.
- 3V-5Vdc.
- Pressure Range 750 to 1250mBar
- 1-2 Week Lead time
- Accuracy ±0.25 to ±0.10%
- Customisable – Output – Pressure – Port
- Low power consumption.
- 4 wires VDD-VSS–SDA-SCL
- OEM Bulk order discounts
- Pressure parameters stored in I2C Registers
- Arduino compatible
- Instrumentation support
- USB serial adaptor
OSL I2C Barometric Pressure sensors are made in the UK and have 1-2 week lead times We offer OEM bulk order discounts and offer a customisation service if our standard offering doesn’t suit the application.
I2C Barometric Pressure sensor Specifications
- Pressure range 750mBAr to 1250mBar
- Accuracy choice from ±0.25 to ±0.10% NLH ( BFSL)
- Media Temperature -40 °C to +125 °C
- Units programmable on calibration
I2C Barometric Pressure Sensor Dimensions
- Body Length 450mm
- Body Diameter 22mm
Description
The OSL I2C Pressure sensor stores the Pressure transducer calibration data. These register locations are then read via I2C protocol. The data is then used to calculate the pressure.
This type of pressure sensor is ideal for:
- Arduino
- Raspberry Pi
- Our USB adaptor
- Embedded sytems
C code and Arduino examples are available
I2C Pressure sensor read example
Below is an example of a 0 to 10 Bar absolute pressure range, the NVM would look like this:
- 2A (Zero pressure range) = 0000
- 2B (Zero decimal place) = 0000
- 2C (Full scale pressure range) = 000A (10 decimal)
- 2D (Full scale decimal place) = 0000
- 29 (Pressure engineering units) = 0002
- 2E (Pressure datum type) = 0001
An example of typical calibration figures would look something like this:
- 24 (Zero calibration LSB) = 4563
- 25 (Zero calibration MSB) = 0019
- When converted from HEX, 0019 4563 to decimal = 1656163
- 26 (Full scale LSB) = 4C8E
- 27 (Full scale MSB) = 00E6
- When converted from HEX, 00E6 4C8E to decimal = 15092878
For example 0 Bar Absolute pressure = 1656163 and 10 Bar absolute pressure = 15092878 giving a span of 13436715 for 10 bar.
OSL I2C Customisation and Design
We at OnlineSensors Ltd sell standard instrumentation but we also offer customisations on any part of our standard offering for example custom:
- Pressure ports
- Hosuing shapes
- Pressure Range
- Output connections
The above are just some examples , the best advice is to get in touch with us.