我得到了返回NMEA数据的GPS模块。 当我试图打印所有使用以下代码返回的数据时,我得到this。从python的串口读取数据
while True:
try:
rcv = port.read()
print rcv
然后,我做了一些修改,将读取NMEA数据清理器。它看起来像这样:
port = serial.Serial("/dev/ttyAMA0", baudrate=9600, timeout=10.0)
line = []
print("connected to: " + port.portstr)
while True:
try:
rcv = port.read()
except:
rcv = ''
line.append(rcv)
if rcv == '\n':
line = "".join(line)
print line
line = []
输出看起来像这样:
$ GPGGA,183345.000,5023.3424,N,01857.3817,E,1,7,1.25,313.3,男,42.1,男, * 53
$ GPGSA,A,3,09,26,28,08,15,18,17 ,,,,,, 1.52,1.25,0.88 * 06
$ GPRMC,183345.000,A ,5023.3424,N,01857.3817,E,0.40,55.07,050214 ,,, A * 54
$ GPVTG,55.07,T,M,0.40,N,0.74,K,A * 0D
$ GPGGA,183346.000,5023.3423,N,01857.3817,E,1,7,1.25,313.3,M,42.1, M,* 57
$ GPGSA,A,3,09,26,28,08,15,18,17 ,,,,,, 1.52,1.25,0.88 * 06
问题有时它会遗漏一些逗号或其他数据,而NMEA解析器读错了。有没有更好更清洁的方式通过串行读取整个NMEA帧?