102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
// Include the esp wifi lib
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#include <ESP8266WiFi.h>
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// Include the mqtt client lib
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#include <PubSubClient.h>
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// Include the settings.h.
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#include "window_control_settings.h"
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#define window_name "window_0"
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#define mqtt_root "home/upstairs_lab/actuators/" window_name
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#define in_topic "/testing/in"
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#define out_topic "/testing/out"
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// Replace by 2 if you aren't enable to use Serial Monitor... Don't forget to Rewire R1 to GPIO2!
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#define in_led 2
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WiFiClient espClient;
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PubSubClient client;
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void setup() {
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Serial.begin(115200);
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setup_wifi();
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client.setClient(espClient);
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client.setServer(MQTT_SERVER, MQTT_PORT);
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client.setCallback(callback);
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// initialize digital pin LED_BUILTIN as an output.
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pinMode(in_led, OUTPUT);
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digitalWrite(in_led, HIGH);
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}
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void setup_wifi() {
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delay(10);
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// We start by connecting to a WiFi network
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Serial.println();
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WiFi.hostname("ESP-" window_name);
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Serial.print("Connecting to ");
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Serial.println(WIFI_SSID);
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WiFi.begin(WIFI_SSID, WIFI_PASS);
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while (WiFi.status() != WL_CONNECTED) {
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delay(950);
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tone(2, 1200, 50);
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Serial.println("Not yet connected.. Waiting 1s to check again..");
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP());
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}
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void reconnect() {
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// Loop until we're reconnected
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while (!client.connected()) {
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Serial.print("Attempting MQTT connection...");
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// Attempt to connect
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if (client.connect("ESP8266Client", MQTT_USER, MQTT_PASS)) {
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Serial.println("connected");
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} else {
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Serial.print("failed, rc=");
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Serial.print(client.state());
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Serial.println(" try again in 5 seconds");
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// Wait 5 seconds before retrying
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delay(5000);
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}
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}
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}
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void callback(char* topic, byte* payload, unsigned int length) {
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Serial.print("Message arrived [");
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Serial.print(topic);
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Serial.print("] ");
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for (int i = 0; i < length; i++) {
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char receivedChar = (char)payload[i];
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Serial.print(receivedChar);
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if (receivedChar == '0')
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digitalWrite(in_led, LOW);
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if (receivedChar == '1')
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digitalWrite(in_led, HIGH);
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}
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Serial.println();
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}
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void loop() {
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// If we ever disconnect, reconnect.
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if (!client.connected()) {
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reconnect();
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}
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// Run the client loop
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client.loop();
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// Publishes a random 0 and 1 like someone switching off and on randomly (random(2))
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client.publish(mqtt_root "/random", String(random(2)).c_str(), true);
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delay(1000);
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client.subscribe(mqtt_root "/in");
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tone(2, 2000, 500);
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delay(1000);
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}
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