147 lines
2.9 KiB
C++
147 lines
2.9 KiB
C++
/*
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* production.cpp
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*
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* Created on: Aug 20, 2017
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* Author: wn
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*/
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#include "defines.h"
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#define MQTT_MAX_PACKET_SIZE 256
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#include <ESP8266WiFi.h>
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#include <ESP8266WebServer.h>
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#include <PubSubClient.h>
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#include "configuration.h"
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void callback(char* topic, byte* payload, unsigned int length);
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WiFiClientSecure espClient;
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PubSubClient client(espClient);
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void setup_wifi() {
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delay(10);
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WiFi.mode(WIFI_STA);
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// We start by connecting to a WiFi network
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#ifdef DEBUG
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(configBlock.wifiSsid);
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#endif
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WiFi.begin(configBlock.wifiSsid, configBlock.wifiKey);
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while (WiFi.status() != WL_CONNECTED) {
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delay(50);
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#ifdef DEBUG
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Serial.print(".");
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#endif
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}
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#ifdef DEBUG
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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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#endif
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}
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void setupProduction() {
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setup_wifi();
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client.setServer(configBlock.mqttBroker, configBlock.mqttPort);
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pinMode(LIGHT_PIN, OUTPUT);
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}
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void callback(char* topic, byte* payload, unsigned int length) {
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const uint8_t BUFSIZE = 128;
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if ((length + 1) >= BUFSIZE) { // 1 for terminating NUL
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#ifdef DEBUG
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Serial.println("Received message too long, ignore it");
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#endif
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} else {
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char buffer[BUFSIZE];
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memcpy(buffer, payload, length);
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*(buffer + length) = 0;
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#ifdef DEBUG
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Serial.print("Received message: ");
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Serial.print(length);
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Serial.print(" ");
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Serial.print(topic);
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Serial.print(" ");
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Serial.println(buffer);
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#endif
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if (! strcmp(topic, configBlock.mqttTopic)) {
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if (! strcmp(buffer, "ON")) {
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digitalWrite(LIGHT_PIN, HIGH);
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} else {
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digitalWrite(LIGHT_PIN, LOW);
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}
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}
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}
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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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#ifdef DEBUG
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Serial.print("Attempting MQTT connection...");
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#endif
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// Attempt to connect
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//char clientId[128];
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//snprintf(clientId, 127, "esp%s", WiFi.macAddress().c_str());
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if (client.connect(configBlock.mqttClientId, configBlock.mqttUser, configBlock.mqttPass)) {
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#ifdef DEBUG
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Serial.println("connected");
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#endif
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// Once connected, publish an announcement...
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//client.publish("IoT/espThermometer/status", "hello world");
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client.setCallback(callback);
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client.subscribe(configBlock.mqttTopic);
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client.publish(configBlock.mqttDebugTopic, "hello world");
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client.publish(configBlock.mqttDebugTopic, WiFi.localIP().toString().c_str());
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} else {
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#ifdef DEBUG
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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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#endif
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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 mqtt_connect() {
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if (!client.connected()) {
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reconnect();
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}
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client.loop();
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}
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void loopProduction() {
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static uint32_t lastMillis = 0;
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mqtt_connect();
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}
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