Update README
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README.md
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README.md
@ -41,3 +41,23 @@ UV{band="UVA",sensor="0",type="VEML6075"} 0
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UV{band="UVB",sensor="0",type="VEML6075"} 2
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UV{band="UVB",sensor="0",type="VEML6075"} 2
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UVIndex{sensor="0",type="VEML6075"} 0.00125
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UVIndex{sensor="0",type="VEML6075"} 0.00125
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```
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```
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### BME280
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This is using `bme280` library; one sensor is allowed based on I2C
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address on the bus, normally `0x10`, but configurable with `sensors.bme280_i2caddr`
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in `mos.yml`. The chip is polled with a period of `sensors.bme280_period`
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which defaults to 3 seconds, each sensor reading takes approximately 4ms.
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Note that there are several versions of this popular barometer chip: BME280
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is fully fledged and includes a hygrometer (measuring the relative humidity),
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while BMP280 does not.
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Please see the upstream [source](https://github.com/mongoose-os-libs/bme280)
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for more information on the driver.
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Reported values (all types are gauges):
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```
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temperature{sensor="0",type="BME280"} 18.4
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humidity{sensor="0",type="BME280"} 77.4
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pressure{sensor="0",type="BME280"} 96720.4
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```
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