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22 lines
785 B
Plaintext
22 lines
785 B
Plaintext
Contiki implementation for Plantower PMS 5003 series
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dust sensors.
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The PMS sensors support serial communication through UART and
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I2C. This implementation supports both modes, and they can be
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individually turned on/off through config options. Both can be
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enabled at the same time.
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In UART mode, the operation is asynchronous; the sensor periodically
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outputs a frame of data, which is assembled by the sensor driver
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through a UART callback function.
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In I2C mode, the I2C bus is probed and if the sensor is found,
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the frame is read. This is synchronous, triggered by a configurable
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timer.
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The sensor is duty-cycled through the SET input signal. The duty-cycling
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intervals are configurable.
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This implementation has been tested against the PMS 5003i (I2C) and
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PMS 3003 (UART) sensors.
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