host_unidirectional.py
#!/usr/bin/env python3
import serial
import sys
import platform
if platform.system() == "Darwin":
dev = serial.Serial("/dev/tty.usbserial-0001", 38400)
else:
dev = serial.Serial("/dev/ttyUSB0", 38400)
print("> Returned data:", file=sys.stderr)
while True:
x = dev.read()
sys.stdout.buffer.write(x)
sys.stdout.flush()