[Twisted-Python] serial communication - getting started

[Tobias Oberstein]

Robert,

as Itamar said: don't use thread -- you likely don't need them in your scenario.

shameless self-plug:

http://www.youtube.com/watch?v=va7j86thW5M
https://github.com/tavendo/AutobahnPython/tree/master/examples/wamp/serial2ws

The example includes both Arduino code and Twisted/Autobahn code .. communicating over serial. No locking. Everything async.

Maybe thats of use while learning ..

/Tobias


Von: twisted-python-bounces at twistedmatrix.com [mailto:twisted-python-bounces at twistedmatrix.com] Im Auftrag von Robert Voigtländer
Gesendet: Montag, 21. Oktober 2013 13:57
An: Twisted general discussion
Betreff: Re: [Twisted-Python] serial communication - getting started

Thanks for the fast reply.
I don't yet understand your answer. I may have to dig more into Python.


On 21 October 2013 13:45, Itamar Turner-Trauring <itamar at itamarst.org<mailto:itamar at itamarst.org>> wrote:
On 10/21/2013 07:35 AM, Robert Voigtländer wrote:
def SerialInit():
...
    reactor.run()


thread.start_new_thread(SerialInit())

if __name__ == '__main__':
    print("-----")
    s.write('123456789')
    #s.write("\n")

1. Twisted is not thread-safe, so you can't call methods on the protocol from another thread.

2. As a result, you're probably best off not using threads at all.

3. A reasonable place for the write() might be in your Protocol's connectionMade method.

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