get_humidity: Get the humidity of a sensor instance.
In jcrodriguez1989/r2dht11: Raspberry Pi's DHT11 Sensor Control From R

Description Usage Arguments Value Methods (by class) Examples

Reads the humidity of a given sensor instance.

get_humidity(x, ...)

## S4 method for signature 'DHT11'
get_humidity(x, max_retries = 10, ...)

`x`	A sensor instance.
`...`	further arguments passed to or from other methods.
`max_retries`	A numeric of length one indicating how many times it should retry in case of issues.

A numeric of length one with the read humidity. In case of error, it will return 'NA'.

DHT11:

## Not run: 
# Get a DHT11 sensor instance connected at GPIO 14.
sensor <- get_dht11_sensor(14)
# Read the humidity.
get_humidity(sensor)

## End(Not run)