require 'humble_rpi-plugin-ds18b20'
class Echo
def notice(s)
puts "%s: %s" % [Time.now, s]
end
end
h = {
settings: {id: '28-0000049a0085', pushrate: 0, threshold: 0.5},
variables: {notifier: Echo.new}
}
rpi = HumbleRPiPluginDs18b20Sensor.new(h)
rpi.start
Output:
ready to monitor temperature 2016-02-20 20:13:07 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 18.25 2016-02-20 20:13:46 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 18.812 2016-02-20 20:13:54 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 19.312 2016-02-20 20:14:05 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 19.937 2016-02-20 20:14:17 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 20.625 2016-02-20 20:14:28 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 21.25 2016-02-20 20:14:47 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 21.75 2016-02-20 20:15:37 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 22.312 2016-02-20 20:16:38 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 21.812 2016-02-20 20:16:57 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 21.25 2016-02-20 20:17:28 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 20.75 2016-02-20 20:18:06 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 20.25 2016-02-20 20:19:00 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 19.75 2016-02-20 20:20:39 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 19.25 2016-02-20 20:23:50 +0000: pi/ds18b20_sensor/28-0000049a0085: temperature: 18.75
In the above example I tested the sensor by placing a cup of hot water next to the DHT11 sensor for a few minutes.
Notes:
- By default the temperature and humidity is refreshed every 3 seconds
- The temperature will be published when ever the temperature value changes by 1 or more
- By default will now only publish notifications once every 60 seconds or more.
require 'humble_rpi'
require 'humble_rpi-plugin-ds18b20'
r = HumbleRPi.new device_name: 'ottavia', sps_address: '192.168.4.140',\
plugins: {Ds18b20Sensor: {id: '28-0000049a0085'} }
r.start
- Reading the temperature from a DS18B20 Digital Thermometer http://www.jamesrobertson.eu/snippets/2016/feb/20/reading-the-temperature-from-a-ds18b20-digital-thermometer.html
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