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add server and schematics

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LICENSE
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MIT License
Copyright (c) <year> <copyright holders>
Copyright (c) 2022 Error
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:

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README.md
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# SCRoIP
Slot Car Racing over IP
Slot Car Racing over IP
A remote control for a slot car racing track to play with it over the LAN. It's unnecessary complicated and inefficient, but at least it supports IPv6. Ladies, Gentlemen and everyone else, start your engines.
## Usage
scroipserver [-h] [-4 V4_HOST | -6 V6_HOST] [-p PORT] config
positional arguments:
config
: path to the configuration file
options:
-h
--help
: show this help message and exit
-4 V4_HOST
--v4-host V4_HOST
: host name or IPv4 address
-6 V6_HOST
--v6-host V6_HOST
: host name or IPv6 address
-p PORT
--port PORT
: TCP port to listen to
## Config Parameters
### Network `[network]`
legacy
: use IPv4 (`True`) or IPv6 (`False`)
v4_host
: IPv4 address of the server (ignored when `legacy` is `True`)
v6_host
: IPv6 address of the server (ignored when `legacy` is `False`)
port
: TCP port the server listens on
### Thresholds `[thresholds]`
min
: traffic threshold for the lowest throttle level
max
: traffic threshold for the maximum throttle level
stop_when_exceeded
: when set to `True`, the controller will stop applying throttle when the `max` threshold is exceeded
### Pins `[pins]`
Mapping of the controlls `a0`, `a1`, `a2`, `s0`, `s1`, `s2` and `s3` to the raspberry pi's GPIO pins (using their BCM numbers).

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example.conf Normal file
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[network]
legacy = False
v4_host = 127.0.0.1
v6_host = ::1
port = 4223
[thresholds]
min = 1
max = 100
stop_when_exceeded = True
[pins]
a0 = 4
a1 = 3
a2 = 2
s0 = 22
s1 = 10
s2 = 27
s3 = 17

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schematics/analog-controller/.gitignore vendored Normal file
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*.aux
*.dvi
*.log
*.pdf

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schematics/analog-controller/carrera.svg Normal file
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\documentclass[tikz]{standalone}
\usepackage{circuitikz}
\usepackage{siunitx}
\begin{document}
\begin{tikzpicture}
%car
\draw[color=lightgray]
% left wheel housing
(1,1) -- ++(0,2)
.. controls +(0,0.5) and +(0,0.5) .. ++(1.5,-0.75)
-- ++(0,-0.25)
% left light
(1.25,1) -- ++(0,1.25)
.. controls +(0,0.25) .. ++(0.5,0)
.. controls +(0.5,-0.25) .. ++(0.5,-0.5)
-- ++(0,-0.75)
.. controls +(0,-0.25) .. ++(-0.25,-0.25)
-- ++(-0.5,0)
.. controls +(-0.25,0) .. ++(-0.25,0.25)
++(0.5,0.15) circle[radius=0.25]
++(-0.1,0.45) circle[radius=0.15]
++(-0.05,0.35) circle[radius=0.1]
% floor
(1,1) .. controls +(0,-0.5) .. ++(0.5,-0.5)
-- ++(6.5,0)
.. controls +(0.5,0) .. ++(0.5,0.5)
% right wheel housing
-- ++(0,2)
.. controls +(0,0.5) and +(0,0.5) .. ++(-1.5,-0.75)
-- ++(0,-0.25)
% right light
(8.25,1) -- ++(0,1.25)
.. controls +(0,0.25) .. ++(-0.5,0)
.. controls +(-0.5,-0.25) .. ++(-0.5,-0.5)
-- ++(0,-0.75)
.. controls +(0,-0.25) .. ++(0.25,-0.25)
-- ++(0.5,0)
.. controls +(0.25,0) .. ++(0.25,0.25)
++(-0.5,0.15) circle[radius=0.25]
++(0.1,0.45) circle[radius=0.15]
++(0.05,0.35) circle[radius=0.1]
% ventilation
(3.5,2) -- ++(0.25,-0.25)
.. controls +(0.1,-0.1) .. ++(0.2,-0.1)
-- ++(1.6,0)
.. controls +(0.1,0) .. ++(0.2,0.1)
-- ++(0.25,0.25)
(2.7,0.5) -- ++(0.1,0.1)
.. controls +(0.1,0.1) .. ++(0.2,0.1)
-- ++(3.5,0)
.. controls +(0.1,0) .. ++(0.2,-0.1)
-- ++(0.1,-0.1)
%cockpit
(2.4,2.5) .. controls +(1,-0.2) and +(-1,-0.2) .. ++(4.7,0)
(2.15,2.75) -- ++(0.3,0.5)
.. controls +(0.6,1) and +(-0.6,1) .. ++(4.6,0)
-- ++(0.3,-0.5)
++(-0.3,0.5) .. controls +(-0.3,0.6) and +(0.3,0.6) .. ++(-4.6,0)
%spoiler
(1.75,3) -- ++(0,0.75)
-- ++(0.05,0)
-- ++ (0,-0.78)
++(0,0.7) -- ++(1.165,0)
++(-1.165,-0.4) -- ++(0.66,0)
(7.75,3) -- ++(0,0.75)
-- ++(-0.05,0)
-- ++ (0,-0.78)
++(0,0.7) -- ++(-1.165,0)
++(1.165,-0.4) -- ++(-0.66,0)
%wheels
(1.25,0.5) -- ++(0,-0.2)
-- ++(1,0)
-- ++(0,0.2)
(8.25,0.5) -- ++(0,-0.2)
-- ++(-1,0)
-- ++(0,0.2);
%controller
\draw[color=lightgray]
(-3.25,4.25) [rounded corners=7.5] -- ++(1.5,0.375)
[rounded corners=1.5] .. controls +(-0.75,-0.75) .. ++(-0.375,-1.125)
.. controls +(-0.3,-0.45) .. ++(0,-0.75)
.. controls +(-0.3,-0.45) .. ++(0,-0.75)
[rounded corners=7.5] .. controls +(-0.3,-0.45) .. ++(0.375,-1.5)
-- ++(-1.5,0)
.. controls +(-0.525,1.8) .. ++(-0.3,3.225)
-- cycle
[sharp corners] ++(0.5,0.125) -- ++(0,0.6)
-- ++(-0.3,-0.075)
-- ++(0,0.05)
-- ++(0.7,0.175)
-- ++(0,-0.05)
-- ++(-0.3,-0.075)
-- ++(0,-0.6);
%circuit
\draw (-4, -1) node[anchor=east] {$+$}
to[open, v=${14.8V}$, voltage=straight, o-o] ++(0,-1)
node[anchor=east] {$-$}
(-3.5,-1) node[jump crossing](tmpX){}
(-3,3.6) to[pR, name=poti, resistors/width=1.5, resistors/zigs=9, l=$\SI{30}{\ohm}$ ] ++(0,-2.1)
-- ++(0,-2.5)
-- (tmpX.east)
(-4,-1) -- (tmpX.west)
(-4,-2) to[short, -*] ++(0.5,0)
-- (tmpX.south)
(tmpX.north) -- (-3.5,3.8)
to[short, -*] ++(0.5,0)
(poti.wiper) -- (poti.wiper |- 42,-1)
-- (3.5,-1)
-- ++(0,1.75)
to[R=$\SI{6,8}{\ohm}$] ++(0,1.5)
to[C=$22nF$, name=cap] ++(2.5,0)
to[R=$\SI{6,8}{\ohm}$] ++(0,-1.5)
-- ++(0,-2.75)
-- ++(-9.5,0)
(cap.center) ++(-0.75,0) to[short, *-] ++(0,-1)
to[Telmech=M] ++(1.5,0)
to[short, -*] ++(0,1);
\end{tikzpicture}
\end{document}

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*.aux
*.dvi
*.log
*.pdf

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schematics/scroip-controller/scroip.tex Normal file
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\documentclass[tikz]{standalone}
\usepackage{circuitikz}
\usepackage{siunitx}
\begin{document}
\begin{tikzpicture}
% V_in and 1st R
\draw (0,0) node[anchor=south] {$V_{in}$}
to[short, o-] (0,-1)
to[R=\SI{1}{\ohm}, -*] (0, -3);
\foreach \i in {0,1,...,15}
{
\ifnum \i < 15
% next R + connection between them
\draw (\i*2,-3) to[short, *-] ++(1,0)
-- ++(0,2)
-- ++(1,0)
to[R=\SI{1}{\ohm}] ++(0, -2);
\else
\draw (\i*2,-3) to[short, *-] ++(2,0)
-- (32,-23);
\fi
% optocoupler
\draw (\i*2,-3) -- ++(0, -1)
+(-0.1,0) rectangle +(1.1,-1)
(\i*2, -4) -- ++(0,-0.2)
node[nigfete, scale=0.3, rotate=90, anchor=D](nigfet1){}
(\i*2+1, -4) -- ++(0,-0.2)
node[nigfete, xscale=-0.3, yscale=0.3, rotate=90, anchor=D](nigfet2){}
(nigfet1.G) -- (nigfet2.G)
(nigfet1.S) -- (nigfet2.S)
(\i*2, -5) -- ++(0,0.2)
to[D*, name=controldiode, diodes/scale=0.25] (\i*2+1, -4.8)
-- (\i*2+1, -5);
\draw[-{Stealth[scale=0.4]}] (controldiode.n) -- ++(0.05,0.12)
-- ++(-0.1,-0.04)
-- ++(0.05,0.12);
% wires between R and optocoupler
\node at (\i*2, -3.5)[jump crossing](X){};
\draw (\i*2+1, -4) to[short, -*] ++(0,0.5)
-- (X.east)
(X.west) -- (\i*2-0.5, -3.5)
(\i*2+1, -3.5) -- +(0.5,0);
}
\draw (31.5,-3.5) -- (31.5,-20.5);
% demux
\tikzset{demuxl/.style={muxdemux, muxdemux def={Lh=4, Rh=8, NL=1, NB=3, NR=8}}}
\draw (6,-5) -- ++(0,-3)
node[demuxl, rotate=90, anchor=brpin 4](demux0){\rotatebox{-90}{demux 0}};
\tikzset{demuxr/.style={muxdemux, muxdemux def={Lh=4, Rh=8, NL=1, NB=0, NT=3, NR=8}}}
\draw (22,-5) -- ++(0,-3)
node[demuxr, rotate=90, anchor=brpin 4](demux1){\rotatebox{-90}{demux 1}};
\foreach \j in {0,1}
{
\foreach \i in {1,2,...,8}
{
\ifnum \i < 4
\draw (demux\j.brpin \i) -- ++(0,\i/2)
-- (\i*2-2+\j*16,-8+\i/2)
-- (\i*2-2+\j*16,-5);
\else
\ifnum \i > 4
\draw (demux\j.brpin \i) -- ++(0,4.5-\i/2)
-- (\i*2-2+16*\j,-3.5-\i/2)
-- (\i*2-2+16*\j,-5);
\fi
\fi
\draw (\i*2-1+\j*16,-5) -- ++(0, -0.5);
\pgfmathparse{int(\i + \j)}
\ifnum \pgfmathresult < 9
\draw (\i*2+\j*16,-5.5) node[jump crossing](tmpX){}
(tmpX.west) -- (\i*2-1+\j*16,-5.5)
(tmpX.east) to[short, -*] (\i*2+1+\j*16,-5.5);
\else
\draw (31,-5.5) -- ++(0,-7.5)
-- ++(-1,0)
-- (30,-19)
(31,-13) to[R, l_=$R_1$, *-] ++(0, -2)
node[ground]{};
\fi
}
}
\node at (13, 42 |- demux0.bpin 1)[jump crossing](X0_1){};
\node at (13.5, 42 |- demux0.bpin 1)[jump crossing](X0_2){};
\node at (13.5, 42 |- demux0.bpin 2)[jump crossing](X1_2){};
\draw (demux0.bpin 1) -- (X0_1.west)
(X0_1.east) -- (X0_2.west)
(X0_2.east) -- (demux1.tpin 1)
(demux0.bpin 2) -- (X1_2.west)
(X1_2.east) -- (demux1.tpin 2)
(demux0.bpin 3) -- (demux1.tpin 3);
\node at (12.5, -11)[jump crossing](X0_1){};
\node at (12.5, -11.5)[jump crossing](X0_2){};
\node at (13, -11.5)[jump crossing](X1_2){};
\draw (11, -10.5) to[short, -*] (12.5, -10.5)
(11, -11) -- (X0_1.west)
(X0_1.east) to[short, -*] (13, -11)
(11, -11.5) -- (X0_2.west)
(X0_2.east) -- (X1_2.west)
(X1_2.east) to[short, -*] (13.5, -11.5);
\foreach \i in {1,2,3}
{
\draw (demux0.lpin 1 |- 42,-10-\i/2) node[jump crossing](tmpX){}
(12+\i/2, 42 |- demux0.bpin \i) to[short, *-] (12+\i/2,-10-\i/2)
(11, -10-\i/2) -- (tmpX.east);
\pgfmathparse{int(\i-1)};
\draw (tmpX.west) to[short, -o] (-0.5,-10-\i/2)
node[anchor=east] {$A_\pgfmathresult$};
}
\draw (demux0.lpin 1) -- (demux0.lpin 1 |- 42, -12)
to[short, -o] (-0.5,-12)
node[anchor=east] {$S_0$};
\node at (12.5, -12.5)[jump crossing](X0){};
\node at (13, -12.5)[jump crossing](X1){};
\node at (13.5, -12.5)[jump crossing](X2){};
\draw (demux1.lpin 1) -- (demux1.lpin 1 |- 42, -12.5)
-- (X2.east)
(X2.west) -- (X1.east)
(X1.west) -- (X0.east)
(X0.west) to[short, -o] (-0.5,-12.5)
node[anchor=east] {$S_1$};
\node at (12.5, -13)[jump crossing](X0){};
\node at (13, -13)[jump crossing](X1){};
\node at (13.5, -13)[jump crossing](X2){};
\draw (25, -16) node[demuxl, rotate=-90, anchor=brpin 4](demux2){\rotatebox{90}{demux 2}};
\draw (-0.5,-13) node[anchor=east] {$S_2$}
to[short, o-] (X0.west)
(X0.east) -- (X1.west)
(X1.east) -- (X2.west)
(X2.east) -- (demux2.lpin 1 |- 42, -13)
-- (demux2.lpin 1);
\draw (9, -16) node[demuxr, rotate=-90, anchor=brpin 4](demux3){\rotatebox{90}{demux 3}};
\draw (-0.5,-13.5) node[anchor=east] {$S_3$}
to[short, o-] (demux3.lpin 1 |- 42,-13.5)
-- (demux3.lpin 1);
\node at (13, 42 |- demux2.bpin 1)[jump crossing](X0_1){};
\node at (13.5, 42 |- demux2.bpin 1)[jump crossing](X0_2){};
\node at (13.5, 42 |- demux2.bpin 2)[jump crossing](X1_2){};
\draw (demux3.tpin 1) -- (X0_1.west)
(X0_1.east) -- (X0_2.west)
(X0_2.east) -- (demux2.bpin 1)
(demux3.tpin 2) -- (X1_2.west)
(X1_2.east) -- (demux2.bpin 2)
(demux3.tpin 3) -- (demux2.bpin 3)
(12.5, 42 |- demux2.bpin 1) to[short, *-] (12.5, -10.5)
(13, 42 |- demux2.bpin 2) to[short, *-] (13, -11)
(13.5, 42 |- demux2.bpin 3) to[short, *-] (13.5, -11.5);
\foreach \i in {0,1,...,15}
{
\node at (31 - \i*2, -20.5)[jump crossing](X){};
\draw (32 - \i*2,-23) -- ++(-1,0)
to[R=\SI{1}{\ohm}, -] ++(0, 2)
-- ++(0,1)
++(-1,-0.5) -- (X.west)
(X.east) -- (31.5 - \i*2, -20.5);
\ifnum \i < 15
\draw (30 - \i*2,-23) -- ++(0,2)
to[short, -*] ++(1,0)
(30 - \i*2,-20) to[short, -*] ++(0,-0.5)
(30 - \i*2, -20.5) -- ++(-0.5,0);
\else
\draw (30 - \i*2,-20) -- ++(0,-0.5);
\fi
% optocoupler
\draw (31.1 - \i*2,-20) rectangle +(-1.2,1)
++(-0.1,0) -- ++(0,0.2)
node[nigfete, scale=-0.3, rotate=90, anchor=D](nigfet1){}
(31 - 1 - \i*2,-20) -- ++(0,0.2)
node[nigfete, xscale=0.3, yscale=-0.3, rotate=90, anchor=D](nigfet2){}
(nigfet1.G) -- (nigfet2.G)
(nigfet1.S) -- (nigfet2.S)
(31 - \i*2,-19) -- ++(0, -0.2)
to[D*, name=controldiode, diodes/scale=0.25] ++(-1,0)
-- ++(0,0.2);
\draw[-{Stealth[scale=0.4]}] (controldiode.n) -- ++(-0.05,-0.12)
-- ++(0.1,0.04)
-- ++(-0.05,-0.12);
\ifnum \i > 0
\node at (31 - \i*2,-18.5)[jump crossing](X){};
\draw (X.west) -- (30 - \i*2,-18.5)
(X.east) -- (32 - \i*2,-18.5);
\fi
\ifnum \i < 15
\draw (30 - \i*2,-19) to[short, -*] ++(0,0.5);
\else
\draw (30 - \i*2,-19) -- ++(0,0.5);
\fi
}
\foreach \j in {2,3}
{
\foreach \i in {1,2,...,8}
{
\ifnum \i < 4
\pgfmathparse{\i==1 && \j==2?int(1):int(0)}
\ifnum \pgfmathresult = 1
\draw (30,-16.5) node[jump crossing](tmpX){}
(demux2.brpin 1) -- ++(0,-\i/2)
-- (tmpX.west)
(tmpX.east) -- (65-16*\j-2*\i, -16-\i/2)
-- (65-16*\j-2*\i, -19);
\else
\draw (demux\j.brpin \i) -- ++(0,-\i/2)
-- (65-16*\j-2*\i, -16-\i/2)
-- (65-16*\j-2*\i, -19);
\fi
\else
\ifnum \i > 4
\draw (demux\j.brpin \i) -- ++(0,-4.5+\i/2)
-- (65-16*\j-2*\i, -20.5+\i/2)
-- (65-16*\j-2*\i, -19);
\else
\draw (demux\j.brpin 4) -- (57-16*\j, -19);
\fi
\fi
}
}
\draw (-1,0) node[anchor=south] {$V_{out}$}
to[short, o-] ++(0,-3.5)
-- ++(0.5,0);
\end{tikzpicture}
\end{document}

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from argparse import ArgumentParser, Namespace
from configparser import ConfigParser
from math import ceil
from RPi import GPIO
from socket import AF_INET6, timeout
from socketserver import BaseRequestHandler, TCPServer
from time import clock_gettime_ns, CLOCK_REALTIME
class SCRoIPRequestHandler(BaseRequestHandler):
"""
Request handler for the Slot Car Racing over IP server
"""
def setup(self):
self.request.settimeout(0.1)
def handle(self):
self.data = b'init'
self.last = clock_gettime_ns(CLOCK_REALTIME)
self.traffic_counter = 0
while self.data != b'':
try:
self.data = self.request.recv(4096)
self.traffic_counter += len(self.data)
except (TimeoutError, timeout):
pass
time = clock_gettime_ns(CLOCK_REALTIME)
diff = time - self.last
if (diff > 100000000):
self.last = time
traffic: float = self.traffic_counter / diff * 1000000000
print(f"{traffic} Bytes/s")
self.server.set_throttle(traffic)
self.server.apply_throttle()
self.traffic_counter = 0
return
class SCRoIPServer(TCPServer):
"""
A TCP server that supports both IPv6 and IPv4 and holds config parameters for the SCRoIPRequestHandler
"""
def __init__(self,
address: str,
port: int,
legacy: bool,
thresholds: dict,
pinconfig: dict):
if not legacy:
self.address_family = AF_INET6
super(SCRoIPServer, self).__init__((address, port), SCRoIPRequestHandler)
self.thresholds: dict = thresholds
self.pinconfig: dict = pinconfig
self.throttle: int = 0
GPIO.setmode(GPIO.BCM)
for pin in pinconfig.values():
GPIO.setup(pin, GPIO.OUT)
GPIO.output(pin, False)
def set_throttle(self,
traffic: float) -> int:
throttle: int = ceil((traffic - self.thresholds['min']) / self.thresholds['step'])
if throttle < 0 or (throttle > 32 and self.thresholds['stop']):
throttle = 0
elif throttle > 32:
throttle = 32
self.throttle = throttle
return throttle
def apply_throttle(self) -> None:
pins: dict = {'a0': False,
'a1': False,
'a2': False,
's0': False,
's1': False,
's2': False,
's3': False}
if self.throttle > 0:
if (self.throttle - 1) % 2 == 0:
pins['a0'] = True
if (self.throttle - 1) % 4 < 2:
pins['a1'] = True
if (self.throttle - 1) % 8 < 4:
pins['a2'] = True
if self.throttle > 24:
pins['s0'] = True
elif self.throttle > 16:
pins['s1'] = True
elif self.throttle > 8:
pins['s2'] = True
else:
pins['s3'] = True
for pin in pins.keys():
GPIO.output(self.pinconfig[pin], pins[pin])
return
# UI Helper Functions
def get_argparser() -> ArgumentParser:
"""
Initialize a parser to parse the argumets with which the programm has been invoced with and return it
"""
parser: ArgumentParser = ArgumentParser(prog='scroipserver',
description='run a Slot Car Racing over IP (SCRoIP) server')
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument('-4', '--v4-host',
action='store',
type=str,
help='host name or IPv4 address')
group.add_argument('-6', '--v6-host',
action='store',
type=str,
help='host name or IPv6 address')
parser.add_argument('-p', '--port',
action='store',
type=int,
metavar='PORT',
help='TCP port to listen to')
parser.add_argument('config',
action='store',
type=str,
help='path to the configuration file')
return parser
def get_config(args: Namespace) -> dict:
"""
read the config file,
merge its contents with what was specified as command line parameters
and return the configuration as a dict;
Raise an exeption if invalid parameters were specified;
values from args overwrite values from the config file
"""
try:
with open(args.config, 'r') as f:
configfile: ConfigParser = ConfigParser()
configfile.read_file(f)
except:
raise Exception(f"error: {args.config} could not be opened")
config: dict = {'network':{},
'pins':{},
'thresholds':{}}
# get ip address
if args.v6_host:
config['network']['legacy'] = False
config['network']['ip_address'] = args.v6_host
elif args.v4_host:
config['network']['legacy'] = True
config['network']['ip_address'] = args.v4_host
else:
try:
legacy: bool = configfile.getboolean('network', 'legacy', fallback=None)
v4: str = configfile.get('network', 'v4_host', fallback=None)
v6: str = configfile.get('network', 'v6_host', fallback=None)
except:
raise Exception('error: invalid values in config file')
if legacy is True:
if v4 is not None:
config['network']['legacy'] = True
config['network']['ip_address'] = v4
else:
raise Exception('error: legacy is set to True but no v4_host was specified')
elif legacy is False:
if v6 is not None:
config['network']['legacy'] = False
config['network']['ip_address'] = v6
else:
raise Exception('error: legacy is set to False but no v6_host was specified')
else: #legacy is None
if v4 is not None and v6 is not None:
raise Exception('error: legacy is not set')
elif v4 is not None:
config['network']['legacy'] = True
config['network']['ip_address'] = v4
elif v6 is not None:
config['network']['legacy'] = False
config['network']['ip_address'] = v6
else:
raise Exception('error: no ip adress was specified')
#get port
if args.port:
port: int = args.port
else:
try:
port: int = configfile.getint('network', 'port', fallback=None)
except:
raise Exception('error: invalid values in config file')
if port is None:
raise Exception('error: no port was specified')
if not port in range(0, 65535):
raise Exception('error: invalid port number')
else:
config['network']['port'] = port
#get thresholds
try:
min: int = configfile.getint('thresholds', 'min', fallback=None)
max: int = configfile.getint('thresholds', 'max', fallback=None)
stop: bool = configfile.get('thresholds', 'stop_when_exceeded', fallback=None)
except:
raise Exception('error: invalid thresholds config')
if min > max:
raise Exception('error: min threshold is greater than max threshold')
else:
config['thresholds']['min'] = min
config['thresholds']['max'] = max
config['thresholds']['stop'] = stop
config['thresholds']['step'] = (max - min) / 32
#get pin map
try:
a0: int = configfile.getint('pins', 'a0', fallback=None)
a1: int = configfile.getint('pins', 'a1', fallback=None)
a2: int = configfile.getint('pins', 'a2', fallback=None)
s0: int = configfile.getint('pins', 's0', fallback=None)
s1: int = configfile.getint('pins', 's1', fallback=None)
s2: int = configfile.getint('pins', 's2', fallback=None)
s3: int = configfile.getint('pins', 's3', fallback=None)
except:
raise Exception('error: could not read pin configuration')
for pin in [a0, a1, a2, s0, s1, s2, s3]:
if pin not in range(1, 28):
raise Exception('error: invalid gpio pin number specified')
config['pins']['a0'] = a0
config['pins']['a1'] = a1
config['pins']['a2'] = a2
config['pins']['s0'] = s0
config['pins']['s1'] = s1
config['pins']['s2'] = s2
config['pins']['s3'] = s3
return config
# Main
if __name__ == '__main__':
parser: ArgumentParser = get_argparser()
args: Namespace = parser.parse_args()
try:
config: dict = get_config(args)
except Exception as error:
parser.print_usage()
print(error)
exit(1)
try:
with SCRoIPServer(config['network']['ip_address'],
config['network']['port'],
config['network']['legacy'],
config['thresholds'],
config['pins']) as server:
try:
server.serve_forever()
except KeyboardInterrupt:
print('\nexiting...')
server.shutdown()
GPIO.cleanup()
except:
print('error: server could not be started')