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mraa/examples/python/uart_receiver.py
Manivannan Sadhasivam eda9d03547 examples: Cleanup Python examples
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
2018-02-06 13:31:19 +01:00

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Python

#!/usr/bin/env python
# Author: Alex Tereschenko <alext.mkrs@gmail.com>
# Copyright (c) 2015 Alex Tereschenko
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
#
# Example Usage: Expects 'X' flag from the sender. This example requires
# `uart_sender.py` to be running on the other end.
import mraa
# Initialise UART
u = mraa.Uart(0)
# Set UART parameters
u.setBaudRate(115200)
u.setMode(8, mraa.UART_PARITY_NONE, 1)
u.setFlowcontrol(False, False)
# Start a neverending loop waiting for data to arrive.
# Press Ctrl+C to get out of it.
while True:
if u.dataAvailable():
# We are doing 1-byte reads here
data_byte = u.readStr(1)
print(data_byte)
# Just a two-way half-duplex communication example, "X" is a flag
if data_byte == "X":
u.writeStr("Yes, master!")