commit a4632bb7ad
Author: A.M. Rowsell <amrowsell@frozenelectronics.ca>
Date: Mon Jan 21 20:13:12 2019 -0500
Sanitizing key and wifi
Signed-off-by: A.M. Rowsell <amrowsell@frozenelectronics.ca>
commit 5e3be0f561
Author: A.M. Rowsell <amrowsell@frozenelectronics.ca>
Date: Mon Jan 21 19:53:42 2019 -0500
It's alive! New code all working.
The OneWire library works. It's a bit hacked together, as neither
the software timer or hardware timer APIs would have worked well,
because they are implemented terribly by Espressif. The easiest
way to get around this was to just use system_get_time() and work
off of that for timing in one-wire comms.
Split the publish function into two separate functions: one to
publish floating point numbers, and one to publish integers. In
a language like Lua or C++ you could have these as one function,
but in C it's easier to just split them.
The main.c has a new function called dataLog that deals with
getting the DS18B20 data and then handing that off to pubfloat().
I updated the timer names to be more descriptive.
I grabbed some code to convert integers and floats to strings, as
I can't be bothered to write that code myself for the millionth
time.
If something goes wrong and we are disconnected from our TCP
connection, all timers are halted so we don't blindly keep
trying to send packets over a non-existent link.
Unfortunately the onewire library is hardcoded to use pin 5.
That will be the next update.
Signed-off-by: A.M. Rowsell <amrowsell@frozenelectronics.ca>
commit 48702bf328
Author: A.M. Rowsell <amrowsell@frozenelectronics.ca>
Date: Sun Jan 20 21:13:04 2019 -0500
First version that compiles with new file layout.
Had to make many changes to get it to compile across many files,
including removing the LOCAL specifier from almost all functions.
Edited the Makefile to compile all three files and link them.
Haven't tested on hardware yet, that's the next step.
Lots of small changes to avoid warnings, now that I have turned
-Wall on. This makes the code a bit "better".
Signed-off-by: A.M. Rowsell <amrowsell@frozenelectronics.ca>
commit 1cd8191682
Author: A.M. Rowsell <amrowsell@frozenelectronics.ca>
Date: Sat Jan 19 15:25:44 2019 -0500
New branch for my new AIO key.
Will have to remember to sanitize before committing to master.
Signed-off-by: A.M. Rowsell <amrowsell@frozenelectronics.ca>
Signed-off-by: A.M. Rowsell <amrowsell@frozenelectronics.ca>
Since this is my first "quasi-professional" project that I actually
want others to use, I wanted there to be decent quality documentation
for all the functions and structs that the end user would need to use.
I had tried Doxygen before but never had much luck, mostly because
I didn't bother to put in the effort to read the documentation closely.
So this time around I did, and the output so far looks quite good
and has a lot of detail about the functions, and the two typedef
structs that are key to everything working.
Added code to check if wifi is connected before allowing the TCP
connection to be attempted. Similar code for mqtt_connect, checking
if we have a valid TCP connection to the server. Waiting for
wifi uses a new global timer. These changes affected the indentation
of huge chunks of the code, as they got wrapped in ifs.
We now take advantage of the void *reverse pointer in the espconn
struct to point to the mqtt_session_t that is active. This is a nice
touch that Espressif added, so you can access arbitrary data from
within callbacks. This will allow us to (soon) have user callbacks
to deal with MQTT messages.
Also added license notices to all the source code files.
Fixed the bug in PUBLISH. Tested with Adafruit IO and data
can be published successfully! This was the original goal of
this project -- being able to blindly fire values at Adafruit
and not having to worry about receiving data. However, I've
widened the scope of the project, and want to eventually do a
full MQTT implementation per the spec.
The basic receive functionality looks at what type of message
is receieved, and then prints out basic messages depending on
what the payload is. Mostly useful as a debugging tool, but
it can easily be expanded. This should probably be split out
into its own function at some point.
strtoarr.py: Because of the weird bug that makes passing string
pointers impossible with the ESP8266, strings have to be stored
as hex arrays and then passed as a pointer. This is a pain for
the user, so I've written a basic script which will take two
arguments: the string to be encoded, and the variable name
to be used. It then spits out C code which can be copied
and pasted into the user code. This saves a bunch of time, and
because it spits them out as static const, it also tells the
compiler to store them in flash (as far as I can tell).
As mentioned, it has now been tested with Adafruit IO. There
are a few more functions in the "user" area of the file. These
are only for debugging and will eventually be surrounded with
\#ifdef DEBUG so they won't be included in the compiled version.
Also, more ifdef preprocessor directives have been added so
that debug messages won't be printed to a user's output unless
they want them.
The next step is to implement SUBSCRIBE, and to compile the code
as mqtt.a - a linkable object file.
