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feat(bq27441): Add clear error when battery is not connected. #429

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Merged
Charly-sketch merged 1 commit into from
Sep 21, 2026
+11 −2
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feat(bq27441): Add clear error when battery is not connected. #429

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13 changes: 11 additions & 2 deletions lib/bq27441/bq27441/device.py
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Original file line number Diff line number Diff line change
Expand Up @@ -139,12 +139,21 @@ def __init__(
self._seal_flag = False
self.gpout_pin = gpout_pin
self.capacity_mAh = capacity_mAh

# The BQ27441 is powered by the battery.
# If no battery is connected, the device will not appear on the I2C bus.
if self.address not in self.i2c.scan():
raise OSError(
"BQ27441 not detected at I2C address 0x{:02X}. "
"Make sure a battery is connected.".format(self.address)
)

self.configure_gpout_input()
self.power_on()

def configure_gpout_input(self):
if self.gpout_pin:
self.gpout = Pin(self.gpout_pin, mode=Pin.IN, pull=Pin.PULL_UP)
if self.gpout_pin:
self.gpout = Pin(self.gpout_pin, mode=Pin.IN, pull=Pin.PULL_UP)

def configure_gpout_output(self):
if self.gpout_pin:
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