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386 lines
10 KiB
386 lines
10 KiB
/*
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RELAY MODULE
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Copyright (C) 2016-2017 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#include <EEPROM.h>
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#include <ArduinoJson.h>
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#include <vector>
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#include <functional>
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typedef struct {
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unsigned char pin;
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bool reverse;
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} relay_t;
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std::vector<relay_t> _relays;
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#ifdef SONOFF_DUAL
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unsigned char dualRelayStatus = 0;
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#endif
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bool recursive = false;
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// -----------------------------------------------------------------------------
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// RELAY
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// -----------------------------------------------------------------------------
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String relayString() {
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DynamicJsonBuffer jsonBuffer;
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JsonObject& root = jsonBuffer.createObject();
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JsonArray& relay = root.createNestedArray("relayStatus");
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for (unsigned char i=0; i<relayCount(); i++) {
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relay.add(relayStatus(i));
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}
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String output;
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root.printTo(output);
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return output;
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}
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bool relayStatus(unsigned char id) {
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#ifdef SONOFF_DUAL
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if (id >= 2) return false;
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return ((dualRelayStatus & (1 << id)) > 0);
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#else
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if (id >= _relays.size()) return false;
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bool status = (digitalRead(_relays[id].pin) == HIGH);
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return _relays[id].reverse ? !status : status;
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#endif
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}
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bool relayStatus(unsigned char id, bool status, bool report) {
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if (id >= _relays.size()) return false;
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bool changed = false;
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if (relayStatus(id) != status) {
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DEBUG_MSG("[RELAY] %d => %s\n", id, status ? "ON" : "OFF");
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changed = true;
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#ifdef SONOFF_DUAL
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dualRelayStatus ^= (1 << id);
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Serial.flush();
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Serial.write(0xA0);
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Serial.write(0x04);
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Serial.write(dualRelayStatus);
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Serial.write(0xA1);
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Serial.flush();
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#else
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digitalWrite(_relays[id].pin, _relays[id].reverse ? !status : status);
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#endif
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if (report) relayMQTT(id);
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if (!recursive) {
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relaySync(id);
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relaySave();
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relayWS();
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}
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#ifdef ENABLE_DOMOTICZ
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relayDomoticzSend(id);
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#endif
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}
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return changed;
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}
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bool relayStatus(unsigned char id, bool status) {
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if (id >= _relays.size()) return false;
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return relayStatus(id, status, true);
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}
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void relaySync(unsigned char id) {
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if (_relays.size() > 1) {
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recursive = true;
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byte relaySync = getSetting("relaySync", RELAY_SYNC).toInt();
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bool status = relayStatus(id);
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// If RELAY_SYNC_SAME all relays should have the same state
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if (relaySync == RELAY_SYNC_SAME) {
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for (unsigned short i=0; i<_relays.size(); i++) {
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if (i != id) relayStatus(i, status);
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}
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// If NONE_OR_ONE or ONE and setting ON we should set OFF all the others
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} else if (status) {
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if (relaySync != RELAY_SYNC_ANY) {
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for (unsigned short i=0; i<_relays.size(); i++) {
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if (i != id) relayStatus(i, false);
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}
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}
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// If ONLY_ONE and setting OFF we should set ON the other one
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} else {
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if (relaySync == RELAY_SYNC_ONE) {
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unsigned char i = (id + 1) % _relays.size();
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relayStatus(i, true);
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}
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}
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recursive = false;
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}
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}
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void relaySave() {
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unsigned char bit = 1;
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unsigned char mask = 0;
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for (unsigned int i=0; i < _relays.size(); i++) {
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if (relayStatus(i)) mask += bit;
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bit += bit;
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}
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EEPROM.write(0, mask);
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EEPROM.commit();
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}
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void relayRetrieve() {
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recursive = true;
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unsigned char bit = 1;
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unsigned char mask = EEPROM.read(0);
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for (unsigned int i=0; i < _relays.size(); i++) {
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relayStatus(i, ((mask & bit) == bit));
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bit += bit;
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}
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recursive = false;
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}
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void relayToggle(unsigned char id) {
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if (id >= _relays.size()) return;
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relayStatus(id, !relayStatus(id));
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}
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unsigned char relayCount() {
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return _relays.size();
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}
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//------------------------------------------------------------------------------
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// REST API
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//------------------------------------------------------------------------------
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void relaySetupAPI() {
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// API entry points (protected with apikey)
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for (unsigned int relayID=0; relayID<relayCount(); relayID++) {
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char url[15];
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sprintf(url, "/api/relay/%d", relayID);
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char key[10];
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sprintf(key, "relay%d", relayID);
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apiRegister(url, key,
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[relayID](char * buffer, size_t len) {
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snprintf(buffer, "%d", len, relayStatus(relayID) ? 1 : 0);
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},
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[relayID](const char * payload) {
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unsigned int value = payload[0] - '0';
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if (value == 2) {
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relayToggle(relayID);
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} else {
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relayStatus(relayID, value == 1);
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}
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});
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}
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}
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//------------------------------------------------------------------------------
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// WebSockets
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//------------------------------------------------------------------------------
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void relayWS() {
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String output = relayString();
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wsSend(output.c_str());
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}
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//------------------------------------------------------------------------------
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// Domoticz
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//------------------------------------------------------------------------------
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#if ENABLE_DOMOTICZ
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void relayDomoticzSend(unsigned int relayID) {
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char buffer[15];
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sprintf(buffer, "dczRelayIdx%d", relayID);
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domoticzSend(buffer, relayStatus(relayID) ? "1" : "0");
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}
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int relayFromIdx(unsigned int idx) {
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for (int relayID=0; relayID<relayCount(); relayID++) {
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if (relayToIdx(relayID) == idx) {
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return relayID;
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}
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}
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return -1;
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}
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int relayToIdx(unsigned int relayID) {
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char buffer[15];
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sprintf(buffer, "dczRelayIdx%d", relayID);
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return getSetting(buffer).toInt();
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}
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void relayDomoticzSetup() {
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mqttRegister([](unsigned int type, const char * topic, const char * payload) {
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String dczTopicOut = getSetting("dczTopicOut", DOMOTICZ_OUT_TOPIC);
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if (type == MQTT_CONNECT_EVENT) {
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mqttSubscribeRaw(dczTopicOut.c_str());
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}
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if (type == MQTT_MESSAGE_EVENT) {
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// Check topic
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if (dczTopicOut.equals(topic)) {
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// Parse response
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DynamicJsonBuffer jsonBuffer;
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JsonObject& root = jsonBuffer.parseObject((char *) payload);
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if (!root.success()) {
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DEBUG_MSG("[DOMOTICZ] Error parsing data\n");
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return;
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}
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// IDX
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unsigned long idx = root["idx"];
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int relayID = relayFromIdx(idx);
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if (relayID >= 0) {
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unsigned long value = root["nvalue"];
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DEBUG_MSG("[DOMOTICZ] Received value %d for IDX %d\n", value, idx);
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relayStatus(relayID, value == 1);
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}
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}
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}
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});
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}
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#endif
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//------------------------------------------------------------------------------
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// MQTT
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//------------------------------------------------------------------------------
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void relayMQTT(unsigned char id) {
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if (id >= _relays.size()) return;
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String mqttGetter = getSetting("mqttGetter", MQTT_USE_GETTER);
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char buffer[strlen(MQTT_RELAY_TOPIC) + mqttGetter.length() + 3];
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sprintf(buffer, "%s/%d%s", MQTT_RELAY_TOPIC, id, mqttGetter.c_str());
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mqttSend(buffer, relayStatus(id) ? "1" : "0");
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}
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void relayMQTT() {
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for (unsigned int i=0; i < _relays.size(); i++) {
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relayMQTT(i);
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}
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}
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void relayMQTTCallback(unsigned int type, const char * topic, const char * payload) {
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String mqttSetter = getSetting("mqttSetter", MQTT_USE_SETTER);
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String mqttGetter = getSetting("mqttGetter", MQTT_USE_GETTER);
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bool sameSetGet = mqttGetter.compareTo(mqttSetter) == 0;
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if (type == MQTT_CONNECT_EVENT) {
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relayMQTT();
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char buffer[strlen(MQTT_RELAY_TOPIC) + mqttSetter.length() + 3];
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sprintf(buffer, "%s/+%s", MQTT_RELAY_TOPIC, mqttSetter.c_str());
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mqttSubscribe(buffer);
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}
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if (type == MQTT_MESSAGE_EVENT) {
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// Match topic
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String t = String(topic + mqttTopicRootLength());
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if (!t.startsWith(MQTT_RELAY_TOPIC)) return;
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if (!t.endsWith(mqttSetter)) return;
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// Get relay ID
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unsigned int relayID = topic[strlen(topic) - mqttSetter.length() - 1] - '0';
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if (relayID >= relayCount()) {
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DEBUG_MSG("[RELAY] Wrong relayID (%d)\n", relayID);
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return;
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}
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// Action to perform
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unsigned int value = (char)payload[0] - '0';
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if (value == 2) {
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relayToggle(relayID);
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} else {
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relayStatus(relayID, value > 0, !sameSetGet);
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}
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}
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}
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void relaySetupMQTT() {
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mqttRegister(relayMQTTCallback);
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}
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//------------------------------------------------------------------------------
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// Setup
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//------------------------------------------------------------------------------
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void relaySetup() {
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#ifdef SONOFF_DUAL
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// Two dummy relays for the dual
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_relays.push_back((relay_t) {0, 0});
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_relays.push_back((relay_t) {0, 0});
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#else
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#ifdef RELAY1_PIN
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_relays.push_back((relay_t) { RELAY1_PIN, RELAY1_PIN_INVERSE });
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#endif
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#ifdef RELAY2_PIN
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_relays.push_back((relay_t) { RELAY2_PIN, RELAY2_PIN_INVERSE });
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#endif
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#ifdef RELAY3_PIN
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_relays.push_back((relay_t) { RELAY3_PIN, RELAY3_PIN_INVERSE });
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#endif
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#ifdef RELAY4_PIN
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_relays.push_back((relay_t) { RELAY4_PIN, RELAY4_PIN_INVERSE });
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#endif
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#endif
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EEPROM.begin(4096);
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byte relayMode = getSetting("relayMode", RELAY_MODE).toInt();
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for (unsigned int i=0; i < _relays.size(); i++) {
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pinMode(_relays[i].pin, OUTPUT);
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if (relayMode == RELAY_MODE_OFF) relayStatus(i, false);
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if (relayMode == RELAY_MODE_ON) relayStatus(i, true);
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}
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if (relayMode == RELAY_MODE_SAME) relayRetrieve();
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relaySetupAPI();
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relaySetupMQTT();
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#if ENABLE_DOMOTICZ
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relayDomoticzSetup();
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#endif
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DEBUG_MSG("[RELAY] Number of relays: %d\n", _relays.size());
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}
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