Introduction

Designed specifically to work with the MPRLS sensor from Adafruit -—> https://www.adafruit.com/products/3965

These sensors use I2C to communicate, 2 pins (SCL+SDA) are required to interface with the breakout.

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Dependencies

Author

Written by Limor Fried/Ladyada for Adafruit Industries.

License

MIT license, all text here must be included in any redistribution.

Changes

Changes by arkhipenko (https://github.com/arkhipenko) (December 2020) Overall, with all the defaults this should be 99% backwards compatible and could be a drop-in replacement. The 1% difference is that the library can now return NAN due to a timeout

• added parameters to constructor to support different transfer function curves and a factor for conversion to desired units
• PSI_min and PSI_max are 16 bit unsigned to support values > 255
• readPressure(void) method calculates based on the provided curve values, and converts to desired units
• readData(void) method may return NAN in case of timeout (20 millis currently - could be changed)
• public variable lastStatus could be accessed to check the error bits in case of a NAN value
• begin() method updates lastStatus, so in case of a failure, the reason could be checked explicitly success is "true" if status == MPRLS_STATUS_POWERED and no other bits are set