[英]Python code reading serial inputs on Beaglebone
我正在嘗試從Beaglebone上的Geiger計數器讀取數據,但是當我打印結果時,不包括計數器代碼:
import Adafruit_BBIO.UART as UART
import serial
import time
UART.setup("UART4")
ser = serial.Serial(port = "/dev/ttyO4", baudrate=9600)
r = 0
d = 0
z = 0
minutes = 0
while True:
timeout = time.time() + 60
while True:
x = ser.read()
if ser.isOpen():
print "Serial is open!"
r = r +1
print r
print x
elif x is '0':
d=d+1
#print '.'
elif x is '1':
d=d+1
#print '.'
time.sleep(1)
z=z+d
print "CPM %f " % d
print "total %f" % z
print "minutes %f" % minutes
我的輸出結果為:
Serial is open!
1
1
Serial is open!
2
1
Serial is open!
3
0
內部while
循環沒有break
,因此它將無限循環。 假設計數器代碼意味着代碼示例末尾的print
語句,那么它們將永遠無法到達。
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