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41 lines
943 B
Python
41 lines
943 B
Python
# NTP Example
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#
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# This example shows how to get the current time using NTP with the WiFi shield.
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import network
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import usocket
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import ustruct
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import utime
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# AP info
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SSID = "" # Network SSID
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KEY = "" # Network key
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TIMESTAMP = 2208988800
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# Init wlan module and connect to network
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print("Trying to connect... (may take a while)...")
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wlan = network.WLAN()
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wlan.active(True)
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wlan.connect(SSID, key=KEY, security=wlan.WPA_PSK)
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# We should have a valid IP now via DHCP
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print(wlan.ifconfig())
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# Create new socket
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client = usocket.socket(usocket.AF_INET, usocket.SOCK_DGRAM)
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client.bind(("", 8080))
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# client.settimeout(3.0)
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# Get addr info via DNS
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addr = usocket.getaddrinfo("pool.ntp.org", 123)[0][4]
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# Send query
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client.sendto("\x1b" + 47 * "\0", addr)
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data, address = client.recvfrom(1024)
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# Print time
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t = ustruct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
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print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (utime.localtime(t)[0:6]))
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