I am very interested in using asyncio for IoT projects. Node.js is spreading like wildfire in the embedded world, and with asyncio Python becomes a much stronger competitor.
I think it would be helpful for those interested in helping you if you published your code somewhere, no matter how messy you think it is. That's how Linus managed to get people to help him build Linux ;-). Best, Luciano On Sun, Mar 1, 2015 at 7:29 PM, Nicolas Di Pietro <[email protected]> wrote: > Hello, > > I'm trying to implement a new protocol (zigbee first, but I have another one > on my desk also) but I'm banging into some walls about how to do it. > > If I have understood all things well, I should implement the data part of the > framing into a datagram_received method, my problem is I don't see where to > put the complete datagram unpacking (data, address), my guess is it should be > in the transport part, but I'm not sure of it, I did not find any example of > that (and in those I've seen, this is done by the os socket part) > > I should be reading/writing from a serial port, this is done as it is a > stream, so, somewhere I have to to take this stream and "transform" it into > datagram. What should I do here ? I mean, should I chain two > transport/protocol couple ? (one stream based protocol, that, on > data_received, manage to transform it in datagram frames and put it into some > fake transport used by the datagram transport), if this is the case, does > someone here has an example how to implement a new transport, the _clean_ way > ? (have started to do it twice, but I never wrote a code so messy, I stopped > when I realised I was subclassing almost all things in asyncio...), even if > this is not the case, if someone has some code about new transport that does > not rely on socket or pipe, it could be great to share. > > Right now, I've managed to read the serial port using StreamReader and > StreamReaderProtocol, now, I have yet to find how to feed that into a > transport (that's why I think about new transport) > > I know this case is a bit specific, but, I think, there should be, at least > one good example on how to do those kind of things. We are in a momentum when > a lot of "Internet of things" things are coming, and, a lot of those things > are using transports that are not either UDP neither TCP and the protocol on > it is not IP, some of those things communicate through serial (in fact > usb-serial adapter, bluetooth over serial, ...), but it could be anything. I > know I'm a bit late in the battle, but I found it not easy at all to add > something that do not use sockets. Python is a good language to be used for > those kind of things since, even the noobiest guy on earth is able to learn > it fast and to get something working, lots of hobbyists are playing right now > with those new devices and, if they could find something that can help them > fast to implement servers, I think (but I'm no specialist) they could enjoy > discovering and using python. > > Thank you for your advices and example (and for those that contribute to > python, your hard work) > > Nicolas -- Luciano Ramalho Twitter: @ramalhoorg Professor em: http://python.pro.br Twitter: @pythonprobr
