109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
#include <Homie.h>
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#include "DHTesp.h"
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DHTesp dht;
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const int TEMPERATURE_INTERVAL = 60;
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unsigned long lastTemperatureSent = 0;
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const int PIN_RELAY = D1;
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#define OUTPUT_SET(x) digitalWrite(PIN_RELAY, x ? LOW : HIGH)
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unsigned int timer = 0;
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unsigned int next_timer_update = 0;
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HomieNode powerNode("power", "Power", "switch");
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HomieNode temperatureNode("temperature", "Temperature", "temperature");
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bool powerStateHandler(const HomieRange& range, const String& value) {
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if (value != "on" && value != "off") return false;
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powerNode.setProperty("state").send(value);
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powerNode.setProperty("timer").send("0");
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timer = 0;
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if(value == "on") {
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OUTPUT_SET(true);
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Homie.getLogger() << "Power is on" << endl;
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} else {
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OUTPUT_SET(false);
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Homie.getLogger() << "Power is off" << endl;
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}
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return true;
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}
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bool powerTimerHandler(const HomieRange& range, const String& value) {
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int settimer = value.toInt();
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if(settimer == 0 || settimer > 120)
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return false;
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timer = millis() + (settimer * 1000 * 60);
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next_timer_update = millis() + 60*1000;
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powerNode.setProperty("timer").send(String(settimer));
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powerNode.setProperty("state").send("on");
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Homie.getLogger() << "Power is on for " << settimer << "minutes" << endl;
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OUTPUT_SET(true);
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return true;
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}
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void setupHandler() {
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pinMode(PIN_RELAY, OUTPUT);
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OUTPUT_SET(false);
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powerNode.setProperty("state").send("off");
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powerNode.setProperty("timer").send("0");
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dht.setup(D1, DHTesp::DHT11); // Connect DHT sensor to GPIO 17
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}
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void loopHandler() {
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if(timer)
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{
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if(timer < millis())
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{ //Timer has expired. (Ignore the wraparound...)
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timer = 0;
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OUTPUT_SET(false);
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powerNode.setProperty("timer").send("0");
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powerNode.setProperty("state").send("off");
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}
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if(next_timer_update && millis() > next_timer_update) {
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next_timer_update = millis() + 60*1000;
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unsigned int time_remaining = timer - millis();
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unsigned int min_left = time_remaining / (60*1000);
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powerNode.setProperty("timer").send(String(min_left));
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}
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}
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if (millis() - lastTemperatureSent >= TEMPERATURE_INTERVAL * 1000UL || lastTemperatureSent == 0)
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{
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float humidity = dht.getHumidity();
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float temperature = dht.getTemperature();
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Homie.getLogger() << "Temperature: " << temperature << "°C " << humidity << "% Humidty" << endl;
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temperatureNode.setProperty("temperature").send(String(temperature));
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temperatureNode.setProperty("humidity").send(String(humidity));
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lastTemperatureSent = millis();
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}
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}
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void setup() {
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Serial.begin(115200);
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Homie_setFirmware("deskcontrol", "0.3.2");
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Homie.disableResetTrigger();
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powerNode.advertise("state").settable(powerStateHandler);
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powerNode.advertise("timer").settable(powerTimerHandler);
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temperatureNode.advertise("humidity");
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temperatureNode.advertise("temperature");
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Homie.setSetupFunction(setupHandler);
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Homie.setLoopFunction(loopHandler);
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Homie.setup();
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}
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void loop() {
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Homie.loop();
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}
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