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256 lines
6.3 KiB
256 lines
6.3 KiB
/*
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ESPurna
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RELAY MODULE
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Copyright (C) 2016 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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std::vector<unsigned char> _relays;
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bool recursive = false;
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#ifdef SONOFF_DUAL
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unsigned char dualRelayStatus = 0;
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#endif
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// -----------------------------------------------------------------------------
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// RELAY
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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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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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void relayWS() {
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String output = relayString();
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wsSend((char *) output.c_str());
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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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return (digitalRead(_relays[id]) == HIGH);
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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], status);
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#endif
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if (!recursive) {
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relaySync(id);
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relaySave();
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}
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#ifdef ENABLE_DOMOTICZ
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domoticzSend(id);
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#endif
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}
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if (report) relayMQTT(id);
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if (!recursive) relayWS();
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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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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(MQTT_RELAY_TOPIC)+1] - '0';
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if (relayID >= relayCount()) relayID = 0;
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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 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(0);
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_relays.push_back(0);
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#else
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#ifdef RELAY1_PIN
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_relays.push_back(RELAY1_PIN);
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#endif
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#ifdef RELAY2_PIN
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_relays.push_back(RELAY2_PIN);
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#endif
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#ifdef RELAY3_PIN
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_relays.push_back(RELAY3_PIN);
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#endif
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#ifdef RELAY4_PIN
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_relays.push_back(RELAY4_PIN);
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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], 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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mqttRegister(relayMQTTCallback);
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DEBUG_MSG("[RELAY] Number of relays: %d\n", _relays.size());
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}
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