mirror of https://github.com/nymea/nymea.git
124 lines
5.6 KiB
C++
124 lines
5.6 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* *
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* Copyright (C) 2016-2018 Simon Stürz <simon.stuerz@guh.io> *
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* *
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* This file is part of nymea. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2.1 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; If not, see *
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* <http://www.gnu.org/licenses/>. *
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* *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*!
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\class nymeaserver::Radio433Brennenstuhl
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\brief The Radio433 class helps to interact with the 433 MHz receiver and transmitter.
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\ingroup hardware
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\inmodule libnymea
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This class handles all supported radio 433 MHz transmitter. Receiving data on the 433.92 MHz frequency
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is only supported, if there are \l{Gpio}{GPIO's} available and a suitable receiver is connected to GPIO 27. Examples for receiver
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can be found \l{https://www.futurlec.com/Radio-433MHZ.shtml}{here}. The antenna has a very large impact on the quality
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of the signal and how well it is recognized. In many forums and blogs it is described that a 17, 3 mm piece of wire is enough.
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Experiments have shown, it's not. A 50 Ohm coaxial cabel (thickness = 1mm), mounted on the antenna pin of the receiver
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with a minimum distance of 5 cm away from the circuit and unisolated 17.3 mm at the end has shown the best results.
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In order to send data to a 433 MHz device, there currently are two possibilitis. If there are \l{Gpio}{GPIO's}
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available, the data will be sent over the transmitter connected to GPIO 22. Also in this case the antenna is a verry
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important part.
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The second possibility to sent data to a 433 MHz device is the \l{http://www.brennenstuhl.de/de-DE/steckdosenleisten-schaltgeraete-und-adapter/brematic-hausautomation/brematic-home-automation-gateway-gwy-433-1.html}
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{Brennenstuhl 433 MHz LAN Gateway}. If there is a Gateway in the local network, this class will automatically detect
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it and will be used. If both transmitter are available (Gateway + GPIO), each signal will be transmitted over both sender.
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\note: Radio 433 on GPIO's is by default disabled. If you want to enable it, you need to compile the source with the qmake config \tt{CONFIG+=radio433gpio}
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*/
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#include "radio433brennenstuhl.h"
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#include "loggingcategories.h"
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#include "hardware/gpio.h"
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#include <QFileInfo>
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namespace nymeaserver {
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/*! Construct the hardware resource Radio433 with the given \a parent. Each possible 433 MHz hardware will be initialized here. */
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Radio433Brennenstuhl::Radio433Brennenstuhl(QObject *parent) :
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Radio433(parent)
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{
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m_brennenstuhlTransmitter = new Radio433BrennenstuhlGateway(this);
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connect(m_brennenstuhlTransmitter, &Radio433BrennenstuhlGateway::availableChanged, this, &Radio433Brennenstuhl::brennenstuhlAvailableChanged);
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qCDebug(dcHardware()) << "-->" << name() << "created successfully.";
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}
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bool Radio433Brennenstuhl::available() const
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{
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return m_available;
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}
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bool Radio433Brennenstuhl::enabled() const
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{
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return m_enabled;
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}
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void Radio433Brennenstuhl::brennenstuhlAvailableChanged(bool available)
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{
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if (available) {
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qCDebug(dcHardware()) << name() << "Brennenstuhl LAN Gateway available.";
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m_available = true;
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} else {
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qCWarning(dcHardware()) << name() << "Brennenstuhl LAN Gateway not available.";
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m_available = false;
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}
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emit availableChanged(m_available);
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}
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/*! Returns true, if the \a rawData with a certain \a delay (pulse length) could be sent \a repetitions times. */
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bool Radio433Brennenstuhl::sendData(int delay, QList<int> rawData, int repetitions)
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{
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if (!available()) {
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qCWarning(dcHardware()) << name() << "Brennenstuhl gateway not available";
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return false;
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}
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if (!enabled()) {
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qCWarning(dcHardware()) << name() << "Hardware reouce disabled.";
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return false;
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}
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return m_brennenstuhlTransmitter->sendData(delay, rawData, repetitions);
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}
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void Radio433Brennenstuhl::setEnabled(bool enabled)
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{
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if (m_enabled == enabled) {
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qCDebug(dcHardware()) << "Radio433 Brennenstuhl gateway already" << (enabled ? "enabled" : "disabled");
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return;
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}
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if (enabled) {
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m_brennenstuhlTransmitter->enable();
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qCDebug(dcHardware()) << "Radio433 Brennenstuhl gateway enabled";
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} else {
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m_brennenstuhlTransmitter->disable();
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qCDebug(dcHardware()) << "Radio433 Brennenstuhl gateway disabled";
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}
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m_enabled = enabled;
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emit enabledChanged(m_enabled);
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}
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}
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