full control

fan-controller/fan-controller.ino

@@ -1,9 +1,33 @@
 #include <ESP8266WiFi.h>
+#include <IRremote.hpp>
 
 #include "credentials.h"
 
+#define APPLY_PERIOD 100
+#define COOLDOWN_MIN 29000
+#define COOLDOWN_MAX 30000
+
 WiFiServer server(1337);
 
+enum IRCommands {
+  UP = 0xF20DF20DFE01,
+  DOWN = 0xEE11EE11FE01,
+  PWR = 0xFC03FC03FE01,
+};
+
+enum Commands {
+  SPEED = 0x01,
+  POWER = 0x02,
+};
+
+byte targetSpeed = 1;
+byte currentSpeed = 1;
+bool currentPowerStatus = true;
+bool targetPowerStatus = true;
+
+long lastApplied = -APPLY_PERIOD;
+long lastWakeUp = -COOLDOWN_MAX;
+
 void setup() {
   Serial.begin(115200);
 
@@ -27,22 +51,106 @@ void setup() {
 
   server.begin();
   Serial.println("Server started");
+
+  IrSender.begin(12);
+}
+
+void readControlData(byte* data) {
+  byte command = data[0];
+
+  switch (command) {
+    case Commands::SPEED:
+      targetSpeed = data[1];
+      break;
+    case Commands::POWER:
+      if (data[1] == 0x01) {
+        targetPowerStatus = true;
+      } else {
+        targetPowerStatus = false;
+      }
+      break;
+  }
+}
+
+void printStatus() {
+  Serial.print("targetSpeed: ");
+  Serial.println(targetSpeed, DEC);
+  Serial.print("targetPowerStatus: ");
+  Serial.println(targetPowerStatus, DEC);
+}
+
+void sendIR(IRCommands command) {
+  Serial.print("Sending command: ");
+  Serial.println(command, HEX);
+
+  long currentTime = millis();
+
+  Serial.print("currentTime: ");
+  Serial.println(currentTime);
+  Serial.print("lastWakeUp: ");
+  Serial.println(lastWakeUp);
+  Serial.print("COOLDOWN_MIN: ");
+  Serial.println(COOLDOWN_MIN);
+  if (currentTime > lastWakeUp + COOLDOWN_MIN && command != IRCommands::PWR) {
+    if (currentTime < lastWakeUp + COOLDOWN_MAX) {
+      Serial.print("Applying grace delay ");
+      Serial.println(currentTime - lastWakeUp - COOLDOWN_MIN);
+      delay(currentTime - lastWakeUp - COOLDOWN_MIN);
+    }
+
+    // Wake up
+    Serial.print("Waking up after ");
+    Serial.println(currentTime - lastWakeUp);
+    IrSender.sendPulseDistanceWidth(38, 9050, 4450, 600, 1600, 600, 500, IRCommands::UP, 48, PROTOCOL_IS_LSB_FIRST, 0, NO_REPEATS);
+    delay(APPLY_PERIOD);
+  }
+
+  IrSender.sendPulseDistanceWidth(38, 9050, 4450, 600, 1600, 600, 500, command, 48, PROTOCOL_IS_LSB_FIRST, 0, NO_REPEATS);
+  lastWakeUp = millis();
+}
+
+void applyCommands() {
+  if (targetPowerStatus != currentPowerStatus) {
+    sendIR(IRCommands::PWR);
+    currentPowerStatus = targetPowerStatus;
+  }
+
+  if (targetSpeed > currentSpeed) {
+    sendIR(IRCommands::UP);
+    currentSpeed++;
+  }
+
+  if (targetSpeed < currentSpeed) {
+    sendIR(IRCommands::DOWN);
+    currentSpeed--;
+  }
 }
 
 void loop() {
-  WiFiClient client = server.available();
+  WiFiClient client = server.accept();
 
   if (client) {
     Serial.println("\n[Client connected]");
     while (client.connected()) {
-      // read line by line what the client (web browser) is requesting
+      byte data[3];
       if (client.available()) {
-        char line = client.read();
-        Serial.print(line);
+        client.readBytesUntil(0xFF, data, 3);
+        readControlData(data);
+        printStatus();
+      }
+
+      if (millis() > lastApplied + APPLY_PERIOD) {
+        applyCommands();
+        lastApplied = millis();
       }
     }
 
     client.stop();
     Serial.println("[Client disconnected]");
   }
+
+  if (millis() > lastApplied + APPLY_PERIOD) {
+    applyCommands();
+    lastApplied = millis();
+  }
 }