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Changes on the _chip_id #9

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Merged
merged 5 commits into from
Apr 15, 2021
Merged

Changes on the _chip_id #9

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b6e62c1
Changes on the _chip_id
jposada202020 Apr 14, 2021
7f5edc0
Merge pull request #1 from adafruit/master
jposada202020 Apr 15, 2021
79407a7
Merge branch 'master' into using_reset
jposada202020 Apr 15, 2021
98f6815
Changing chip_id function.
jposada202020 Apr 15, 2021
69ab50f
Getting the chip ID
jposada202020 Apr 15, 2021
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17 changes: 7 additions & 10 deletions adafruit_shtc3.py
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Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,8 @@ def __init__(self, i2c_bus):
self.low_power = False
self.sleeping = False
self.reset()
if self._chip_id & 0x083F != _SHTC3_CHIP_ID:
self._chip_id = self._get_chip_id()
if self._chip_id != _SHTC3_CHIP_ID:
raise RuntimeError("Failed to find an SHTC3 sensor - check your wiring!")

def _write_command(self, command):
Expand All @@ -129,18 +130,14 @@ def _write_command(self, command):
with self.i2c_device as i2c:
i2c.write(self._buffer, start=0, end=2)

@property
def _chip_id(self): # readCommand(SHTC3_READID, data, 3);
def _get_chip_id(self): # readCommand(SHTC3_READID, data, 3);
"""Determines the chip id of the sensor"""
self._buffer[0] = _SHTC3_READID >> 8
self._buffer[1] = _SHTC3_READID & 0xFF

self._write_command(_SHTC3_READID)
time.sleep(0.001)
with self.i2c_device as i2c:
i2c.write_then_readinto(
self._buffer, self._buffer, out_start=0, out_end=2, in_start=0, in_end=2
)
i2c.readinto(self._buffer)

return unpack_from(">H", self._buffer)[0]
return unpack_from(">H", self._buffer)[0] & 0x083F

def reset(self):
"""Perform a soft reset of the sensor, resetting all settings to their power-on defaults"""
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