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import serial
import sys
import time
import filecmp
import serial.tools.list_ports
def sendInfo(strInfo):
try:
print ('['+time.strftime("%Y-%m-%d %X")+']发→◇'+strInfo.decode())
except Exception:
print ('['+time.strftime("%Y-%m-%d %X")+']发→◇', end='')
print(strInfo)
def recvInfo(strInfo):
try:
print ('['+time.strftime("%Y-%m-%d %X")+']收←◆'+strInfo.decode())
except Exception:
print ('['+time.strftime("%Y-%m-%d %X")+']收←◆', end='')
print(strInfo)
def list_comport():
plist = list(serial.tools.list_ports.comports())
if len(plist) <= 0:
print("没有发现端口!")
else:
for aport in plist:
print("可用端口名>>>",aport[0],"-",aport)
plist_0 = list(plist[0])
serialName = plist_0[0]
try:
serialFd = serial.Serial(serialName, 9600, timeout=60)
print("可用端口名>>>", serialFd.name)
return serialFd.name
except:
print('无法打开串口')
sys.exit(0)
def waitForCmdOKRsp(timeout):
timeout *=10
while True:
n=ser.inWaiting()
if n:
line = ser.read(n)
recvInfo(line.decode())
i=line.find(b'OK')
if i>=0:
break
time.sleep(0.1)
timeout-=1
if (timeout<=0):
print('[INFO]等待AT命令返回OK超时')
sys.exit(0)
def waitForCmdRsp(timeout):
timeout *=10
while True:
n=ser.inWaiting()
if n:
line = ser.read(n).decode()
recvInfo(line)
return
time.sleep(0.1)
timeout-=1
if(timeout<=0):
print('[INFO]等待AT命令返回超时')
break
def sendAT_Cmd(serInstance,atCmdStr,waitforOk,timeout):
sendInfo(atCmdStr)
serInstance.write(atCmdStr.encode('utf-8'))
if(waitforOk == 1):
waitForCmdOKRsp(timeout)
else:
waitForCmdRsp(timeout)
def scanport():
plist = list(serial.tools.list_ports.comports())
if len(plist) <= 0:
print("没有发现端口!")
else:
for aport in plist:
print("可用端口名>>>",aport)
return plist
portlist = scanport()
for a in portlist:
print(a)
comport='COM5'
try:
ser = serial.Serial(port=comport, baudrate=115200, bytesize=8, parity=serial.PARITY_NONE, stopbits=1, timeout=0)
if ser.isOpen() :
print("[INFO]%s open success" % comport)
else :
print("[INFO]%s open failed" % comport)
except:
print ("[INFO]请查看是否成功打开设备端口："+comport)
sys.exit()
sendAT_Cmd(ser,'AT\r\n',1, 5)
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