HP01-JK Datasheet, PDF (5/7 Pages) List of Unclassifed Manufacturers – Low voltage, low power

Hope RF
HP01-JK
BAROMETER MODULE
2010-6-3
PRELIMINARY
Version2.1
A (bold): I²C bus acknowledge by slave (SDA pull low: slave send out bit 0)
A: I²C bus acknowledge by master (SDA pull low: master send out bit 0)
N: I²C bus no acknowledge from master (SDA keep high: master send out bit 1 instead)
D : delay for 38ms or above
MSB: conversion result (MSB bit clocked out first)
LSB: conversion result (MSB bit clocked out first).
Remark:
Before start an AD conversion cycle, remember to set XCLR pin high so that the system
is no longer in the reset state (not valid for HP01).
All data read from the module is in hex format.
After first power on, the first read data should be disregarded, and only the second value
be used. This can assure that unstable reading after power on reset can be filtered out.
Like any other semiconductor device, the sensor is sensitive to light. During the
application of this sensor, please keep the sensor in dark place to achieve best accuracy.
Since the module is not calibrated for sensitivity and temperature, thus only relative pressure can be
calculated. If you need higher accuracy with temperature, please refer to our HP02 or HP03 series
pressure module accordingly.
Typical Application Circuit Diagram:
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