我们从Python开源项目中，提取了以下3个代码示例，用于说明如何使用socket.SO_DR。
def __init__(self, deviceAddress, applicationKey, networkKey): from network import LoRa import socket import binascii import struct self.deviceAddress = deviceAddress self.applicationKey = applicationKey self.networkKey = networkKey self.lora = LoRa(mode=LoRa.LORAWAN) dev_addr = struct.unpack(">l", binascii.unhexlify(deviceAddress.replace(' ','')))[0] nwk_swkey = binascii.unhexlify(networkKey.replace(' ','')) app_swkey = binascii.unhexlify(applicationKey.replace(' ','')) self.lora.join(activation=LoRa.ABP, auth=(dev_addr, nwk_swkey, app_swkey)) self.s = socket.socket(socket.AF_LORA, socket.SOCK_RAW) self.s.setsockopt(socket.SOL_LORA, socket.SO_DR, 5) self.s.setblocking(False)
def increase_lora_delivary_chances(element): if (element.attempts == 2): element.DR = 4 elif (element.attempts == 4): element.DR = 2 element.socket.setsockopt(socket.SOL_LORA, socket.SO_DR, element.DR)
def connect(self, dev_eui, app_eui, app_key): """ Connect device to LoRa. Set the socket and lora instances. """ dev_eui = unhexlify(dev_eui) app_eui = unhexlify(app_eui) app_key = unhexlify(app_key) # Disable blue blinking and turn LED off LED.heartbeat(False) LED.off() # Initialize LoRa in LORAWAN mode self.lora = LoRa(mode = LoRa.LORAWAN) # Join a network using OTAA (Over the Air Activation) self.lora.join(activation = LoRa.OTAA, auth = (dev_eui, app_eui, app_key), timeout = 0) # Wait until the module has joined the network count = 0 while not self.lora.has_joined(): LED.blink(1, 2.5, 0xff0000) # print("Trying to join: " , count) count = count + 1 # Create a LoRa socket LED.blink(2, 0.1) self.s = socket.socket(socket.AF_LORA, socket.SOCK_RAW) # Set the LoRaWAN data rate self.s.setsockopt(socket.SOL_LORA, socket.SO_DR, 5) # Make the socket non-blocking self.s.setblocking(False) # print ("Joined! ", count) # print("Create LoRaWAN socket") # Create a raw LoRa socket self.s = socket.socket(socket.AF_LORA, socket.SOCK_RAW) self.s.setblocking(False)
