86 lines
3.4 KiB
Python
86 lines
3.4 KiB
Python
from machine import UART, Pin
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from mqtt_client import MQTTClient
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from ch9120 import CH9120
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import time
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# MQTT
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CLIENT_ID = "Waveshare_RP2040_ETH"
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SUBSCRIBE_TOPIC = "test_topic1"
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PUBLISH_TOPIC = "test_topic2"
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# CH9120
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MODE = 1 #0:TCP Server 1:TCP Client 2:UDP Server 3:UDP Client
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GATEWAY = (192, 168, 1, 1) # GATEWAY
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TARGET_IP = (47, 92, 129, 18) # TARGET_IP
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LOCAL_IP = (192, 168, 1, 200) # LOCAL_IP
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SUBNET_MASK = (255,255,255,0) # SUBNET_MASK
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LOCAL_PORT1 = 1000 # LOCAL_PORT1
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TARGET_PORT = 1883 # TARGET_PORT
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BAUD_RATE = 115200 # BAUD_RATE
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uart1 = UART(1, baudrate=9600, tx=Pin(20), rx=Pin(21))
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def ch9120_configure():
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global uart1
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ch9120 = CH9120(uart1)
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ch9120.enter_config() # enter configuration mode
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ch9120.set_mode(MODE)
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ch9120.set_localIP(LOCAL_IP)
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ch9120.set_subnetMask(SUBNET_MASK)
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ch9120.set_gateway(GATEWAY)
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ch9120.set_localPort(LOCAL_PORT1)
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ch9120.set_targetIP(TARGET_IP)
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ch9120.set_targetPort(TARGET_PORT)
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ch9120.set_baudRate(BAUD_RATE)
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ch9120.exit_config() # exit configuration mode
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# Clear cache and reconfigure uart1
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uart1.read(uart1.any())
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time.sleep(0.5)
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uart1 = UART(1, baudrate=115200, tx=Pin(20), rx=Pin(21))
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if __name__ == "__main__":
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ch9120_configure()
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mqtt_client = MQTTClient(uart1)
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mqtt_client.ClientID = CLIENT_ID # Set ClientID
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mqtt_client.connect() # Connect to MQTT server
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mqtt_client.subscribe(SUBSCRIBE_TOPIC) # Subscribe to topic：test_topic1
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mqtt_client.send_heartbeat()
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last_heartbeat_time = time.time()
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time.sleep_ms(60) # Sending the first heartbeat
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uart1.read() # Clear unnecessary data
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while True:
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rxData = uart1.read()
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if rxData is not None:
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topic, message = mqtt_client.extract_data(rxData) # Parse the received data
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if topic == SUBSCRIBE_TOPIC:
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print("Topic:", topic)
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print("Message:", message)
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mqtt_client.publish(PUBLISH_TOPIC, message) # Send received data to topic：test_topic2
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current_time = time.time()
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if current_time - last_heartbeat_time >= 30:
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mqtt_client.send_heartbeat() # Send a heartbeat every 30 seconds
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last_heartbeat_time = current_time
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time.sleep_ms(60) # Waiting for the server to respond
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if not mqtt_client.check_heartbeat_response():
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while True:
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print("Reconnecting...")
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mqtt_client = MQTTClient(uart1)
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mqtt_client.ClientID = CLIENT_ID # Set ClientID
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mqtt_client.connect() # Connect to MQTT server
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mqtt_client.subscribe(SUBSCRIBE_TOPIC) # Subscribe to topic：test_topic1
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time.sleep_ms(200) # Waiting for the server to respond
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uart1.read() # Clear unnecessary data
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mqtt_client.send_heartbeat() # Sending the first heartbeat
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last_heartbeat_time = current_time # Clear unnecessary data
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time.sleep_ms(60) # Waiting for the server to respond
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if mqtt_client.check_heartbeat_response():
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print("Reconnection successful!")
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break
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time.sleep_ms(20)
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