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357 lines
7.8 KiB
357 lines
7.8 KiB
/*
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iFan02 MODULE
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Copyright (C) 2021 by Maxim Prokhorov <prokhorov dot max at outlook dot com>
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Original implementation via RELAY module
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Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#include "espurna.h"
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#if IFAN_SUPPORT
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#include "api.h"
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#include "button.h"
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#include "mqtt.h"
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#include "relay.h"
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#include "terminal.h"
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#include <array>
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#include <utility>
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namespace ifan02 {
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enum class Speed {
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Off,
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Low,
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Medium,
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High
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};
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const char* speedToPayload(Speed value) {
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switch (value) {
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case Speed::Off:
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return "off";
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case Speed::Low:
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return "low";
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case Speed::Medium:
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return "medium";
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case Speed::High:
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return "high";
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}
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return "";
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}
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Speed payloadToSpeed(const char* payload) {
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auto len = strlen(payload);
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if (len == 1) {
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switch (payload[0]) {
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case '0':
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return Speed::Off;
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case '1':
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return Speed::Low;
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case '2':
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return Speed::Medium;
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case '3':
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return Speed::High;
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}
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} else if (len > 1) {
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String cmp(payload);
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if (cmp == "off") {
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return Speed::Off;
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} else if (cmp == "low") {
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return Speed::Low;
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} else if (cmp == "medium") {
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return Speed::Medium;
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} else if (cmp == "high") {
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return Speed::High;
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}
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}
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return Speed::Off;
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}
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Speed payloadToSpeed(const String& string) {
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return payloadToSpeed(string.c_str());
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}
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} // namespace ifan02
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namespace settings {
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namespace internal {
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template <>
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ifan02::Speed convert(const String& value) {
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return ifan02::payloadToSpeed(value);
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}
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} // namespace internal
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} // namespace settings
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namespace ifan02 {
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constexpr unsigned long DefaultSaveDelay { 1000ul };
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// Remote presses trigger GPIO pushbutton events
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// Attach to a specific ID to trigger an action
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constexpr unsigned char DefaultRelayId { 0u };
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constexpr unsigned char DefaultLowButtonId { 1u };
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constexpr unsigned char DefaultMediumButtonId { 2u };
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constexpr unsigned char DefaultHighButtonId { 3u };
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// We expect to write a specific 'mask' via GPIO LOW & HIGH to set the speed
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// Sync up with the relay and write it on ON / OFF status events
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constexpr size_t Gpios { 3ul };
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using State = std::array<int8_t, Gpios>;
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using Pin = std::pair<int, BasePinPtr>;
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using StatePins = std::array<Pin, Gpios>;
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// XXX: while these are hard-coded, we don't really benefit from having these in the hardware cfg
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StatePins statePins() {
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return {
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{{5, nullptr},
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{4, nullptr},
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{15, nullptr}}
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};
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}
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struct Config {
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unsigned long save { DefaultSaveDelay };
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unsigned char relayId { DefaultRelayId };
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unsigned char buttonLowId { DefaultLowButtonId };
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unsigned char buttonMediumId { DefaultMediumButtonId };
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unsigned char buttonHighId { DefaultHighButtonId };
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Speed speed { Speed::Off };
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StatePins state_pins;
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};
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Config readSettings() {
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return {
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getSetting("ifanSave", DefaultSaveDelay),
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getSetting("ifanRelayId", DefaultRelayId),
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getSetting("ifanBtnLowId", DefaultLowButtonId),
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getSetting("ifanBtnLowId", DefaultMediumButtonId),
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getSetting("ifanBtnHighId", DefaultHighButtonId),
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getSetting("ifanSpeed", Speed::Medium)
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};
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}
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Config config;
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void configure() {
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config = readSettings();
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}
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void report(Speed speed [[gnu::unused]]) {
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#if MQTT_SUPPORT
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mqttSend(MQTT_TOPIC_SPEED, speedToPayload(speed));
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#endif
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}
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void save(Speed speed) {
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static Ticker ticker;
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config.speed = speed;
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ticker.once_ms(config.save, []() {
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const char* value = speedToPayload(config.speed);
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setSetting("ifanSpeed", value);
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DEBUG_MSG_P(PSTR("[IFAN] Saved speed setting \"%s\"\n"), value);
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});
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}
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void cleanupPins(StatePins& pins) {
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for (auto& pin : pins) {
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if (!pin.second) continue;
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gpioUnlock(pin.second->pin());
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pin.second.reset(nullptr);
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}
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}
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StatePins setupStatePins() {
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StatePins pins = statePins();
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for (auto& pair : pins) {
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auto ptr = gpioRegister(pair.first);
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if (!ptr) {
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DEBUG_MSG_P(PSTR("[IFAN] Could not set up GPIO%d\n"), pair.first);
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cleanupPins(pins);
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return pins;
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}
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ptr->pinMode(OUTPUT);
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pair.second = std::move(ptr);
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}
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return pins;
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}
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State stateFromSpeed(Speed speed) {
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switch (speed) {
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case Speed::Low:
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return {HIGH, LOW, LOW};
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case Speed::Medium:
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return {HIGH, HIGH, LOW};
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case Speed::High:
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return {HIGH, LOW, HIGH};
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case Speed::Off:
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break;
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}
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return {LOW, LOW, LOW};
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}
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const char* maskFromSpeed(Speed speed) {
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switch (speed) {
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case Speed::Low:
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return "0b100";
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case Speed::Medium:
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return "0b110";
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case Speed::High:
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return "0b101";
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case Speed::Off:
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return "0b000";
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}
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return "";
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}
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void setSpeed(StatePins& pins, Speed speed) {
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auto state = stateFromSpeed(speed);
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DEBUG_MSG_P(PSTR("[IFAN] State mask: %s\n"), maskFromSpeed(speed));
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for (size_t index = 0; index < pins.size(); ++ index) {
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if (!pins[index].second) continue;
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pins[index].second->digitalWrite(state[index]);
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}
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}
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void setSpeed(Speed speed) {
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setSpeed(config.state_pins, speed);
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}
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// Note that we use API speed endpoint strictly for the setting
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// (which also allows to pre-set the speed without turning the relay ON)
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void setSpeedFromPayload(const char* payload) {
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auto speed = payloadToSpeed(payload);
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switch (speed) {
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case Speed::Low:
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case Speed::Medium:
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case Speed::High:
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setSpeed(speed);
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report(speed);
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save(speed);
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break;
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case Speed::Off:
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break;
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}
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}
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void setSpeedFromPayload(const String& payload) {
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setSpeedFromPayload(payload.c_str());
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}
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#if MQTT_SUPPORT
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void onMqttEvent(unsigned int type, const char* topic, const char* payload) {
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switch (type) {
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case MQTT_CONNECT_EVENT:
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mqttSubscribe(MQTT_TOPIC_SPEED);
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break;
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case MQTT_MESSAGE_EVENT: {
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auto parsed = mqttMagnitude(topic);
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if (parsed.startsWith(MQTT_TOPIC_SPEED)) {
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setSpeedFromPayload(payload);
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}
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break;
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}
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}
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}
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#endif // MQTT_SUPPORT
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void setSpeedFromStatus(bool status) {
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setSpeed(status ? config.speed : Speed::Off);
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}
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void setup() {
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config.state_pins = setupStatePins();
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if (!config.state_pins.size()) {
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return;
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}
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configure();
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espurnaRegisterReload(configure);
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#if BUTTON_SUPPORT
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buttonSetCustomAction([](unsigned char id) {
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if (config.buttonLowId == id) {
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setSpeed(Speed::Low);
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} else if (config.buttonMediumId == id) {
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setSpeed(Speed::Medium);
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} else if (config.buttonHighId == id) {
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setSpeed(Speed::High);
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}
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});
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#endif
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#if RELAY_SUPPORT
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setSpeedFromStatus(relayStatus(config.relayId));
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relaySetStatusChange([](unsigned char id, bool status) {
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if (config.relayId == id) {
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setSpeedFromStatus(status);
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}
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});
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#endif
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#if MQTT_SUPPORT
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mqttRegister(onMqttEvent);
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#endif
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#if API_SUPPORT
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apiRegister(F(MQTT_TOPIC_SPEED),
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[](ApiRequest& request) {
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request.send(speedToPayload(config.speed));
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return true;
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},
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[](ApiRequest& request) {
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setSpeedFromPayload(request.param(F("value")));
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return true;
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}
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);
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#endif
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#if TERMINAL_SUPPORT
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terminalRegisterCommand(F("SPEED"), [](const terminal::CommandContext& ctx) {
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if (ctx.argc == 2) {
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setSpeedFromPayload(ctx.argv[1]);
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}
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ctx.output.println(speedToPayload(config.speed));
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terminalOK(ctx);
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});
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#endif
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}
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} // namespace ifan
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void ifanSetup() {
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ifan02::setup();
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}
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#endif // IFAN_SUPPORT
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