37 lines
991 B
Python
37 lines
991 B
Python
import network
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import umachine as machine
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import usocket as socket
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import utime as time
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WIFI_SSID='KYzhang'
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WIFI_PASSWORD='kyzhangx'
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SERVER_HOST='117.50.111.72'
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SERVER_PORT=8001
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if __name__ == '__main__':
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# register esp8266 as NIC
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uart0 = machine.UART(0) # BearPi LPUART1
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esp8266 = network.ESP8266(uart0)
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print("esp8266 init done")
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esp8266.connect(ssid=WIFI_SSID, pwd=WIFI_PASSWORD)
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print("esp8266 connect done")
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# get socket and establish tcp connection
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tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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print("socket init done")
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tcp_socket.connect((SERVER_HOST, SERVER_PORT))
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print("socket connect done")
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# tcp send and receive
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cnt = 0
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while cnt < 5:
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send_len = tcp_socket.send("This is TCP test!\n")
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print(f"send len:{send_len}")
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data = tcp_socket.recv(1024)
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if not data:
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break
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print(f"recv data:{data}")
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cnt += 1
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time.sleep(0.5)
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