43 lines
1.3 KiB
YAML
43 lines
1.3 KiB
YAML
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# Copyright 2023 Daniel DeGrasse <daniel@degrasse.com>
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# SPDX-License-Identifier: Apache-2.0
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description: TCN75A ambient temperature sensor
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compatible: "microchip,tcn75a"
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include: [sensor-device.yaml, i2c-device.yaml]
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properties:
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alert-gpios:
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type: phandle-array
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description: |
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ALERT pin
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This pin defaults to active low when produced by the sensor.
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The property value should ensure the gpio flags properly describe
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the signal that is presented to the driver. Required in order to use
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triggering support.
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resolution:
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type: string
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default: "9-bit"
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enum:
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- "9-bit"
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- "10-bit"
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- "11-bit"
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- "12-bit"
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description: |
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Sensor resolution. Higher resolutions will result in longer conversion
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times. Note: datasheet's claim about the ambient temperature register:
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> When the 0.5°C, 0.25°C or 0.125°C resolutions are selected,
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> bit 6, bit 7 or bit 8 will remain clear <0>,
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> respectively.
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appears to be incorrect. Only conversion times seem to be affected by
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resolution selection.
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oneshot-mode:
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type: boolean
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description: |
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Oneshot sampling mode. Reduces power consumption, but disables triggering
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feature as well as high resolution sampling. Only supported with 9 bit
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resolution.
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