added dust sensor sleep

main.py

@@ -8,6 +8,7 @@
 from config import *
 import json
 import math
+import network
 
 i2c = machine.I2C(0, sda=machine.Pin(21), scl=machine.Pin(22))
 bme = bme280.BME280(i2c=i2c)
@@ -32,15 +33,32 @@ def on_receive(lora, outgoing):
     payload = lora.read_payload()
     print(payload)
 
+
+def do_connect():
+    import network
+    sta_if = network.WLAN(network.STA_IF)
+    sta_if.config(hostname="Micropython-Weather")
+
+    if not sta_if.isconnected():
+        print('connecting to network...')
+        sta_if.active(True)
+        sta_if.connect(wifi_config['ssid'], wifi_config['password'])
+        while not sta_if.isconnected():
+            pass
+    print('network config:', sta_if.ifconfig())
+
+
 lora.on_receive(on_receive)
 lora.receive()
 
 
+do_connect()
 
 while True:
 
     dust_sensor.wake()
-
+    time.sleep(5)
+
     #Returns NOK if no measurement found in reasonable time
     status = dust_sensor.read()
 
@@ -56,6 +74,8 @@ def on_receive(lora, outgoing):
     else:
         pm25=float(dust_sensor.pm25)
         pm10=float(dust_sensor.pm10)
+
+    dust_sensor.sleep()
 
     temperature,pressure,humidity = bme.values