I'm trying to have a Beaglebone Black Wireless(debian image 2017-07-01)
communicate to another device using UART serial communication. In an
example program, the bone waits for the device to send the letter "A",
then, upon receiving the right letter, outputs a message and transmits the
letter "B". The pins used for transmitting and receiving are "P9_24" and
"P9_26" respectively. Here is the following program:
import Adafruit_BBIO.UART as UARTimport serial
#Enabling the serial ports
UART.setup("UART1")
#Serial setup values
ser = serial.Serial()
ser.port = "/dev/ttyO1"
ser.baudrate = 9600
READ_LEN = 1
ser.close()
rx = ""
while True:
print "Waiting for A... "
ser.open()
rx = ser.read()
ser.close()
if (rx == 'A'):
print "Got it!"
ser.open()
ser.write("B")
ser.close()
break
The program doesn't throw any errors, however, when testing it out with the
device, the program gets stuck on the "Waiting for A" line. I have
thoroughly checked that all connections are correct and that the other
device is sending data. Additionally, the program runs perfectly on an
older Beaglebone (debian image 2015-11-12).
Any help into this matter would be greatly appreciated.
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