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boot.py

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+import gc
+import webrepl
+
+def do_connect():
+    import network
+
+    wlan = network.WLAN(network.STA_IF)
+    wlan.active(True)
+
+    if not wlan.isconnected():
+        print('connecting to network...')
+        wlan.connect('mimimi', 'phplandia')
+
+        while not wlan.isconnected():
+            pass
+
+    print('network config:', wlan.ifconfig())
+
+
+def do_ntp():
+    from ntptime import settime
+
+    settime()
+
+webrepl.start()
+gc.collect()
+
+do_connect()
+do_ntp()
+

main.py

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+import time
+import dht
+import machine
+import urequests as requests
+
+DHT_PIN = 2
+API_THINGSPEAK_HOST = 'https://api.thingspeak.com/update'
+THINGSPEAK_WRITE_KEY = '' # put your key here
+MESUREMENT_INTERVAL = 300
+DELAY = 30
+
+
+def do_temp():
+    try:
+        d = dht.DHT11(machine.Pin(DHT_PIN))
+        d.measure()
+
+        t = d.temperature()
+        h = d.humidity()
+    except OSError as err:
+        t = 0
+        h = 0
+
+    print('temperature = %.2f' % t)
+    print('humidity    = %.2f' % h)
+
+    global THINGSPEAK_WRITE_KEY
+
+    if not THINGSPEAK_WRITE_KEY:
+        print('not ThingSpeak key specified, skip sending data')
+        return
+
+    print('send data to ThingSpeak')
+
+    data = '{"field1":"%.2f", "field2": "%.2f"}' % (t, h)
+
+    headers = {'X-THINGSPEAKAPIKEY': THINGSPEAK_WRITE_KEY,
+               'Content-type': 'application/json'}
+
+    r = requests.post(API_THINGSPEAK_HOST, data=data, headers=headers)
+    results = r.json()
+
+    print(results)
+
+last_mesurement_time = 0
+
+while True:
+    current_time = time.time()
+
+    if current_time - last_mesurement_time > MESUREMENT_INTERVAL:
+        do_temp()
+        last_mesurement_time = current_time
+
+    time.sleep(DELAY)