commit by robo pro coding

.project.json

+{"name":"IoT_MQTT_Barometer","mode":"ADVANCED","uuid":"70df319e-8306-f6c2-1be5-df84a2ba4b08"}
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IoT_MQTT_Barometer.py

+import json
+import math
+import time
+
+from datetime import datetime
+from fischertechnik.mqtt.Client import Client as MqttClient
+from fischertechnik.mqtt.Constants import CONTROLLER_ID
+from lib.controller import *
+from lib.display import *
+
+
+h = None
+ts = None
+pressure = None
+temperature = None
+humidity = None
+p0 = None
+
+
+def datetimestamp():
+    global h, ts, pressure, temperature, humidity, p0
+    ts = datetime.now().strftime("%Y-%m-%dT%H:%M:%S.%f")[:-3] + "Z"
+    return ts
+
+
+h = 125
+MqttClient.getInstance().connect()
+while True:
+    if (MqttClient.getInstance().is_connected()):
+        break
+    time.sleep(0.010)
+while True:
+    pressure = TXT_M_I2C_1_environment_sensor.get_pressure()
+    temperature = TXT_M_I2C_1_environment_sensor.get_temperature()
+    humidity = TXT_M_I2C_1_environment_sensor.get_humidity()
+    display.set_attr("humidity.text", str(''.join([str(x) for x in ['Humidity: ', round(humidity, 1), ' %']])))
+    display.set_attr("temperature.text", str(''.join([str(x2) for x2 in ['Temperature: ', round(temperature, 1), ' °C']])))
+    p0 = (((temperature + 273.15) + 0.0065 * h) / (temperature + 273.15)) ** 5.255 * pressure
+    display.set_attr("pressure.text", str(''.join([str(x3) for x3 in ['Pressure: ', round(pressure, 1), ' hPa (', round(p0, 1), ' hPa to NN)']])))
+    if p0 < 980:
+        display.set_attr("forecast.text", str('Forecast: Rain'))
+    elif p0 > 1020:
+        display.set_attr("forecast.text", str('Forecast: Fair'))
+    else:
+        display.set_attr("forecast.text", str('Forecast: Change'))
+    MqttClient.getInstance().publish("/j1/txt/" + str(CONTROLLER_ID) +"/i/bme680", '{{"ts":"{}","t":{},"h":{},"p":{}}}'.format(datetimestamp(), TXT_M_I2C_1_environment_sensor.get_temperature(), TXT_M_I2C_1_environment_sensor.get_humidity(), TXT_M_I2C_1_environment_sensor.get_pressure()))
+    time.sleep(1)
+
+

lib/controller.blockly

+<xml xmlns="https://developers.google.com/blockly/xml" version="12">
+  <block type="txt4_controller" id="bx`~@dS+oeG-#2C{_P6k" x="0" y="0">
+    <mutation>
+      <arg type="Input" name="Input-0" value="-"/>
+      <arg type="Output" name="Output-0" value="-"/>
+      <arg type="Motor" name="Motor-0" value="-"/>
+      <arg type="Servomotor" name="Servomotor-0" value="-"/>
+      <arg type="Counter" name="Counter-0" value="-"/>
+      <arg type="I2C" name="I2C-0" value="I2C_1"/>
+      <arg type="I2C" name="I2C-1" value="-"/>
+      <arg type="USB" name="USB-0" value="-"/>
+    </mutation>
+    <field name="mode">0</field>
+    <field name="controller_name">TXT</field>
+    <field name="Input-0">-</field>
+    <field name="Output-0">-</field>
+    <field name="Motor-0">-</field>
+    <field name="Servomotor-0">-</field>
+    <field name="Counter-0">-</field>
+    <field name="I2C-0">I2C_1</field>
+    <field name="I2C-1">-</field>
+    <field name="USB-0">-</field>
+    <value name="I2C-0">
+      <block type="environment_sensor" id="^[+fFmp-$M]:Q@3|$^i]"/>
+    </value>
+  </block>
+</xml>
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lib/controller.py

+import fischertechnik.factories as txt_factory
+
+txt_factory.init()
+txt_factory.init_i2c_factory()
+
+TXT_M = txt_factory.controller_factory.create_graphical_controller()
+TXT_M_I2C_1_environment_sensor = txt_factory.i2c_factory.create_environment_sensor(TXT_M, 1)
+
+txt_factory.initialized()
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lib/display.py

+import os
+import time
+import threading
+import signal
+
+import ftgui
+
+display = ftgui.fttxt2_gui_connector("app")
+display.open()
+
+def display_monitoring():
+    while display.is_open():
+        time.sleep(1)
+    os.kill(os.getpid(), signal.SIGTERM)
+    exit()
+
+threading.Thread(target=display_monitoring, daemon=True).start()

lib/display.qml

+// auto generated content from display configuration
+import QtQuick 2.2
+import QtQuick.Window 2.0
+import QtQuick.Controls 1.1
+import QtQuick.Controls.Styles 1.1
+import QtQuick.Extras 1.4
+
+TXTWindow {
+  Rectangle {
+    id: rect
+    color: "grey"
+    anchors.fill: parent
+  }
+  TXTLabel {
+    id: txt_label
+    text: "Meteorological Station"
+    font.pixelSize: 16
+    elide: Text.ElideRight
+    x: 20
+    y: 20
+    width: 200
+    height: 20
+  }
+  TXTLabel {
+    id: humidity
+    text: "Humidity: - %"
+    font.pixelSize: 16
+    elide: Text.ElideRight
+    x: 20
+    y: 60
+    width: 200
+    height: 20
+  }
+  TXTLabel {
+    id: temperature
+    text: "Temperature: - °C"
+    font.pixelSize: 16
+    elide: Text.ElideRight
+    x: 20
+    y: 100
+    width: 200
+    height: 20
+  }
+  TXTLabel {
+    id: pressure
+    text: "Pressure: - hPa"
+    font.pixelSize: 16
+    elide: Text.ElideRight
+    x: 20
+    y: 140
+    width: 200
+    height: 20
+  }
+  TXTLabel {
+    id: forecast
+    text: "Forecast: -"
+    font.pixelSize: 16
+    elide: Text.ElideRight
+    x: 20
+    y: 180
+    width: 200
+    height: 20
+  }
+}

lib/display.xml

+<xml type="display" version="2"><item id="2" class="TXTLabel"><name>txt_label</name><text>Meteorological Station</text><geometry><x>20</x><y>20</y><width>200</width><height>20</height></geometry></item><item id="3" class="TXTLabel"><name>humidity</name><text>Humidity: - %</text><geometry><x>20</x><y>60</y><width>200</width><height>20</height></geometry></item><item id="4" class="TXTLabel"><name>temperature</name><text>Temperature: - °C</text><geometry><x>20</x><y>100</y><width>200</width><height>20</height></geometry></item><item id="5" class="TXTLabel"><name>pressure</name><text>Pressure: - hPa</text><geometry><x>20</x><y>140</y><width>200</width><height>20</height></geometry></item><item id="6" class="TXTLabel"><name>forecast</name><text>Forecast: -</text><geometry><x>20</x><y>180</y><width>200</width><height>20</height></geometry></item></xml>
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