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mhsw-espurna/code/src/code.ino

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/*
ESPurna
Copyright (C) 2016 by Xose Pérez <xose dot perez at gmail dot com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <PubSubClient.h>
#include <DebounceEvent.h>
#include <ArduinoOTA.h>
#include <RemoteReceiver.h>
#include <EEPROM.h>
#include "FS.h"
#include <stdio.h>
#include <EmonLiteESP.h>
// -----------------------------------------------------------------------------
// Configuració
// -----------------------------------------------------------------------------
#define DEBUG
#define ENABLE_RF 1
#define ENABLE_OTA 1
#define ENABLE_MQTT 1
#define ENABLE_WEBSERVER 1
#define ENABLE_ENERGYMONITOR 1
#define APP_NAME "Espurna 0.9.1"
#define APP_AUTHOR "xose.perez@gmail.com"
#define APP_WEBSITE "http://tinkerman.cat"
#define MODEL "SONOFF"
#define BUTTON_PIN 0
#define RELAY_PIN 12
#define LED_PIN 13
#define ADMIN_PASS "fibonacci"
#define CONFIG_PATH "/.config"
#define BUFFER_SIZE 1024
#define STATUS_UPDATE_INTERVAL 10000
#define RF_PIN 14
#define RF_CHANNEL 31
#define RF_DEVICE 1
#define MQTT_RECONNECT_DELAY 10000
#define MQTT_RETAIN true
#define MQTT_TOPIC "/test/switch/{identifier}"
#define MQTT_PORT 1883
#define NETWORK_BUFFER 3
#define WIFI_CONNECT_TIMEOUT 5000
#define WIFI_RECONNECT_DELAY 5000
#define WIFI_STATUS_CONNECTING 0
#define WIFI_STATUS_CONNECTED 1
#define WIFI_STATUS_AP 2
#define CURRENT_PIN A0
#define REFERENCE_VOLTAGE 1.0
#define MAINS_VOLTAGE 230.0
#define CURRENT_RATIO 156
#define CURRENT_PRECISION 1
#define SAMPLES_X_MEASUREMENT 1500
#define MEASUREMENT_INTERVAL 10000
#define MEASUREMENTS_X_MESSAGE 6
// -----------------------------------------------------------------------------
// Globals
// -----------------------------------------------------------------------------
char identifier[20] = {0};
byte status = WIFI_STATUS_CONNECTING;
String configSSID[NETWORK_BUFFER];
String configPASS[NETWORK_BUFFER];
DebounceEvent button1 = false;
#if ENABLE_WEBSERVER
ESP8266WebServer server(80);
#endif
#if ENABLE_MQTT
WiFiClient client;
PubSubClient mqtt(client);
String mqttServer = "";
String mqttTopic = MQTT_TOPIC;
String mqttPort = String(MQTT_PORT);
String mqttUser = "";
String mqttPassword = "";
char mqttStatusTopic[30];
char mqttIPTopic[30];
#if ENABLE_ENERGYMONITOR
char mqttPowerTopic[30];
#endif
bool isMQTTMessage = false;
#endif
#if ENABLE_RF
unsigned long rfCode = 0;
unsigned long rfCodeON = 0;
unsigned long rfCodeOFF = 0;
String rfChannel = String(RF_CHANNEL);
String rfDevice = String(RF_DEVICE);
#endif
#if ENABLE_ENERGYMONITOR
EnergyMonitor monitor;
#endif
// -----------------------------------------------------------------------------
// Utils
// -----------------------------------------------------------------------------
char * getCompileTime(char * buffer) {
int day, month, year, hour, minute, second;
// parse date
String tmp = String(__DATE__);
day = tmp.substring(4,6).toInt();
year = tmp.substring(7).toInt();
tmp = tmp.substring(0,3);
if (tmp.equals("Jan")) month = 1;
if (tmp.equals("Feb")) month = 2;
if (tmp.equals("Mar")) month = 3;
if (tmp.equals("Apr")) month = 4;
if (tmp.equals("May")) month = 5;
if (tmp.equals("Jun")) month = 6;
if (tmp.equals("Jul")) month = 7;
if (tmp.equals("Aug")) month = 8;
if (tmp.equals("Sep")) month = 9;
if (tmp.equals("Oct")) month = 10;
if (tmp.equals("Nov")) month = 11;
if (tmp.equals("Dec")) month = 12;
// parse time
tmp = String(__TIME__);
hour = tmp.substring(0,2).toInt();
minute = tmp.substring(3,5).toInt();
second = tmp.substring(6,8).toInt();
sprintf(buffer, "%d%02d%02d%02d%02d%02d", year, month, day, hour, minute, second);
buffer[14] = 0;
return buffer;
}
// -----------------------------------------------------------------------------
// Relay
// -----------------------------------------------------------------------------
void switchRelayOn() {
if (!digitalRead(RELAY_PIN)) {
#ifdef DEBUG
Serial.println("Turning the relay ON");
#endif
#if ENABLE_MQTT
if (!isMQTTMessage && mqtt.connected()) {
mqtt.publish(mqttStatusTopic, "1", MQTT_RETAIN);
}
#endif
digitalWrite(RELAY_PIN, HIGH);
if (EEPROM.read(0) == 0) {
EEPROM.write(0, 1);
EEPROM.commit();
}
}
}
void switchRelayOff() {
if (digitalRead(RELAY_PIN)) {
#ifdef DEBUG
Serial.println("Turning the relay OFF");
#endif
#if ENABLE_MQTT
if (!isMQTTMessage && mqtt.connected()) {
mqtt.publish(mqttStatusTopic, "0", MQTT_RETAIN);
}
#endif
digitalWrite(RELAY_PIN, LOW);
if (EEPROM.read(0) == 1) {
EEPROM.write(0, 0);
EEPROM.commit();
}
}
}
void toggleRelay() {
if (digitalRead(RELAY_PIN)) {
switchRelayOff();
} else {
switchRelayOn();
}
}
// -----------------------------------------------------------------------------
// Wifi
// -----------------------------------------------------------------------------
char * getIdentifier() {
if (identifier[0] == 0) {
sprintf(identifier, "%s_%06X", MODEL, ESP.getChipId());
}
return identifier;
}
void wifiSetupAP() {
// Set WIFI module AP mode
WiFi.mode(WIFI_AP);
#ifdef DEBUG
WiFi.printDiag(Serial);
#endif
// SoftAP mode
WiFi.softAP(getIdentifier(), ADMIN_PASS);
status = WIFI_STATUS_AP;
#ifdef DEBUG
Serial.print("[AP Mode] SSID: ");
Serial.print(getIdentifier());
Serial.print(", Password: \"");
Serial.print(ADMIN_PASS);
Serial.print("\", IP address: ");
Serial.println(WiFi.softAPIP());
#endif
}
void wifiSetupSTA(bool force) {
byte network = 0;
if (force || (WiFi.status() != WL_CONNECTED)) {
// Set WIFI module to STA mode
WiFi.mode(WIFI_STA);
#ifdef DEBUG
WiFi.printDiag(Serial);
#endif
#if ENABLE_MQTT
if (mqtt.connected()) mqtt.disconnect();
#endif
#if ENABLE_RF
RemoteReceiver::disable();
#endif
while (network < 3) {
if (configSSID[network].length() > 0) {
char ssid[configSSID[network].length()+1];
char pass[configPASS[network].length()+1];
configSSID[network].toCharArray(ssid, configSSID[network].length()+1);
configPASS[network].toCharArray(pass, configPASS[network].length()+1);
WiFi.begin(ssid, pass);
#ifdef DEBUG
Serial.println("Connecting to WIFI " + configSSID[network]);
#endif
// Wait
unsigned long timeout = millis() + WIFI_CONNECT_TIMEOUT;
while (timeout > millis()) {
showStatus();
if (WiFi.status() == WL_CONNECTED) break;
delay(100);
}
}
if (WiFi.status() == WL_CONNECTED) break;
network++;
}
#if ENABLE_RF
RemoteReceiver::enable();
#endif
}
if (WiFi.status() == WL_CONNECTED) {
WiFi.setAutoConnect(true);
status = WIFI_STATUS_CONNECTED;
#ifdef DEBUG
Serial.print("[STA Mode] SSID: ");
Serial.print(WiFi.SSID());
Serial.print(", IP address: ");
Serial.println(WiFi.localIP());
#endif
} else {
#ifdef DEBUG
Serial.println("[STA Mode] NOT CONNECTED");
#endif
wifiSetupAP();
}
}
void wifiLoop() {
// Trying to reconnect in case of disconnection
if ((status == WIFI_STATUS_CONNECTED) && (WiFi.status() != WL_CONNECTED)) {
status = WIFI_STATUS_CONNECTING;
wifiSetupSTA(false);
}
}
// -----------------------------------------------------------------------------
// WebServer
// -----------------------------------------------------------------------------
#if ENABLE_WEBSERVER
String getContentType(String filename) {
if (server.hasArg("download")) return "application/octet-stream";
else if (filename.endsWith(".htm")) return "text/html";
else if (filename.endsWith(".html")) return "text/html";
else if (filename.endsWith(".css")) return "text/css";
else if (filename.endsWith(".js")) return "application/javascript";
else if (filename.endsWith(".png")) return "image/png";
else if (filename.endsWith(".gif")) return "image/gif";
else if (filename.endsWith(".jpg")) return "image/jpeg";
else if (filename.endsWith(".ico")) return "image/x-icon";
else if (filename.endsWith(".xml")) return "text/xml";
else if (filename.endsWith(".pdf")) return "application/x-pdf";
else if (filename.endsWith(".zip")) return "application/x-zip";
else if (filename.endsWith(".gz")) return "application/x-gzip";
return "text/plain";
}
void handleRelayOn() {
#ifdef DEBUG
Serial.println("Request: /relay/on");
#endif
switchRelayOn();
server.send(200, "text/plain", "ON");
}
void handleRelayOff() {
#ifdef DEBUG
Serial.println("Request: /relay/off");
#endif
switchRelayOff();
server.send(200, "text/plain", "OFF");
}
bool handleFileRead(String path) {
#ifdef DEBUG
Serial.println("Request: " + path);
#endif
if (path.endsWith("/")) path += "index.html";
String contentType = getContentType(path);
String pathWithGz = path + ".gz";
if (SPIFFS.exists(pathWithGz)) path = pathWithGz;
if (SPIFFS.exists(path)) {
File file = SPIFFS.open(path, "r");
size_t sent = server.streamFile(file, contentType);
size_t contentLength = file.size();
file.close();
return true;
}
return false;
}
void handleHome() {
#ifdef DEBUG
Serial.println("Request: /index.html");
#endif
String filename = "/index.html";
String content = "";
char buffer[BUFFER_SIZE];
// Read file in chunks
File file = SPIFFS.open(filename, "r");
int size = file.size();
while (size > 0) {
size_t len = std::min(BUFFER_SIZE-1, size);
file.read((uint8_t *) buffer, len);
buffer[len] = 0;
content += buffer;
size -= len;
}
file.close();
// Replace placeholders
getCompileTime(buffer);
content.replace("{appname}", String(APP_NAME) + "." + String(buffer));
content.replace("{status}", digitalRead(RELAY_PIN) ? "1" : "0");
content.replace("{updateInterval}", String(STATUS_UPDATE_INTERVAL));
content.replace("{ssid0}", configSSID[0]);
content.replace("{pass0}", configPASS[0]);
content.replace("{ssid1}", configSSID[1]);
content.replace("{pass1}", configPASS[1]);
content.replace("{ssid2}", configSSID[2]);
content.replace("{pass2}", configPASS[2]);
#if ENABLE_MQTT
content.replace("{mqttServer}", mqttServer);
content.replace("{mqttPort}", mqttPort);
content.replace("{mqttUser}", mqttUser);
content.replace("{mqttPassword}", mqttPassword);
content.replace("{mqttTopic}", mqttTopic);
#endif
#if ENABLE_RF
content.replace("{rfChannel}", rfChannel);
content.replace("{rfDevice}", rfDevice);
#endif
// Serve content
String contentType = getContentType(filename);
server.send(200, contentType, content);
}
void handleSave() {
#ifdef DEBUG
Serial.println("Request: /save");
#endif
if (server.hasArg("status")) {
if (server.arg("status") == "1") {
switchRelayOn();
} else {
switchRelayOff();
}
}
if (server.hasArg("ssid0")) configSSID[0] = server.arg("ssid0");
if (server.hasArg("pass0")) configPASS[0] = server.arg("pass0");
if (server.hasArg("ssid1")) configSSID[1] = server.arg("ssid1");
if (server.hasArg("pass1")) configPASS[1] = server.arg("pass1");
if (server.hasArg("ssid2")) configSSID[2] = server.arg("ssid2");
if (server.hasArg("pass2")) configPASS[2] = server.arg("pass2");
#if ENABLE_MQTT
if (server.hasArg("mqttServer")) mqttServer = server.arg("mqttServer");
if (server.hasArg("mqttPort")) mqttPort = server.arg("mqttPort");
if (server.hasArg("mqttUser")) mqttUser = server.arg("mqttUser");
if (server.hasArg("mqttPassword")) mqttPassword = server.arg("mqttPassword");
if (server.hasArg("mqttTopic")) mqttTopic = server.arg("mqttTopic");
#endif
#if ENABLE_RF
if (server.hasArg("rfChannel")) rfChannel = server.arg("rfChannel");
if (server.hasArg("rfDevice")) rfDevice = server.arg("rfDevice");
#endif
server.send(202, "text/json", "{}");
saveConfig();
#if ENABLE_RF
rfBuildCodes();
#endif
wifiSetupSTA(true);
}
void handleStatus() {
#ifdef DEBUG
//Serial.println("Request: /status");
#endif
String output = "{";
output += "\"device\": \"";
output += getIdentifier();
output += "\", \"ip\": \"";
output += (WiFi.status() == WL_CONNECTED) ? WiFi.localIP().toString() : "NOT CONNECTED";
output += "\", \"network\": \"";
output += (WiFi.status() == WL_CONNECTED) ? WiFi.SSID() : "";
output += "\", \"relay\": ";
output += (digitalRead(RELAY_PIN)) ? "1": "0";
#if ENABLE_MQTT
output += ", \"mqtt\": ";
output += (mqtt.connected()) ? "1": "0";
#endif
output += "}";
server.send(200, "text/json", output);
}
void webServerSetup() {
// Relay control
server.on("/relay/on", HTTP_GET, handleRelayOn);
server.on("/relay/off", HTTP_GET, handleRelayOff);
// Configuration page
server.on("/save", HTTP_POST, handleSave);
server.on("/status", HTTP_GET, handleStatus);
server.on("/", HTTP_GET, handleHome);
server.on("/index.html", HTTP_GET, handleHome);
// Anything else
server.onNotFound([]() {
// Hidden files
if (server.uri().startsWith("/.")) {
server.send(403, "text/plain", "Forbidden");
return;
}
// Existing files in SPIFFS
if (!handleFileRead(server.uri())) {
server.send(404, "text/plain", "NotFound");
return;
}
});
// Run server
server.begin();
}
void webServerLoop() {
server.handleClient();
}
#endif
// -----------------------------------------------------------------------------
// MQTT
// -----------------------------------------------------------------------------
#if ENABLE_MQTT
void buildTopics() {
String tmp;
// Replace identifier
String base = mqttTopic;
base.replace("{identifier}", getIdentifier());
// Get publish status topic
base.toCharArray(mqttStatusTopic, base.length()+1);
mqttStatusTopic[base.length()+1] = 0;
// Get publish ip topic
tmp = base + "/ip";
tmp.toCharArray(mqttIPTopic, tmp.length()+1);
mqttIPTopic[tmp.length()+1] = 0;
// Get publish current topic
#if ENABLE_ENERGYMONITOR
tmp = base + "/power";
tmp.toCharArray(mqttPowerTopic, tmp.length()+1);
mqttPowerTopic[tmp.length()+1] = 0;
#endif
}
void mqttCallback(char* topic, byte* payload, unsigned int length) {
#ifdef DEBUG
Serial.print("MQTT message ");
Serial.print(topic);
Serial.print(" => ");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
Serial.println();
#endif
// Action to perform
if ((char)payload[0] == '0') {
isMQTTMessage = true;
switchRelayOff();
}
if ((char)payload[0] == '1') {
isMQTTMessage = true;
switchRelayOn();
}
if ((char)payload[0] == '2') {
toggleRelay();
}
isMQTTMessage = false;
}
void mqttConnect() {
if (!mqtt.connected() && (mqttServer.length()>0)) {
char buffer[mqttServer.length()+1];
mqttServer.toCharArray(buffer, mqttServer.length()+1);
mqtt.setServer(buffer, mqttPort.toInt());
#ifdef DEBUG
Serial.print("Connecting to MQTT broker at ");
Serial.print(mqttServer);
#endif
if (mqttUser.length() > 0) {
#ifdef DEBUG
Serial.print(" as user ");
Serial.print(mqttUser);
Serial.print(": ");
#endif
char user[mqttUser.length() + 1];
mqttUser.toCharArray(user, mqttUser.length() + 1);
char password[mqttPassword.length() + 1];
mqttPassword.toCharArray(password, mqttPassword.length() + 1);
mqtt.connect(getIdentifier(), user, password);
} else {
#ifdef DEBUG
Serial.print(" anonymously: ");
#endif
mqtt.connect(getIdentifier());
}
if (mqtt.connected()) {
buildTopics();
#ifdef DEBUG
Serial.println("connected!");
Serial.print("Subscribing to ");
Serial.println(mqttStatusTopic);
#endif
// Say hello and report our IP
String ipString = WiFi.localIP().toString();
char ip[ipString.length()+1];
ipString.toCharArray(ip, ipString.length()+1);
mqtt.publish(mqttIPTopic, ip, MQTT_RETAIN);
// Publish current relay status
mqtt.publish(mqttStatusTopic, digitalRead(RELAY_PIN) ? "1" : "0", MQTT_RETAIN);
// Subscribe to topic
mqtt.subscribe(mqttStatusTopic);
} else {
#ifdef DEBUG
Serial.print("failed, rc=");
Serial.println(mqtt.state());
#endif
}
}
}
void mqttSetup() {
mqtt.setCallback(mqttCallback);
}
void mqttLoop() {
static unsigned long timeout = millis();
if (WiFi.status() == WL_CONNECTED) {
if (!mqtt.connected()) {
if (timeout < millis()) {
mqttConnect();
timeout = millis() + MQTT_RECONNECT_DELAY;
}
}
if (mqtt.connected()) mqtt.loop();
}
}
#endif
// -----------------------------------------------------------------------------
// RF
// -----------------------------------------------------------------------------
#if ENABLE_RF
void rfLoop() {
if (rfCode == 0) return;
#ifdef DEBUG
Serial.print("RF code: ");
Serial.println(rfCode);
#endif
if (rfCode == rfCodeON) switchRelayOn();
if (rfCode == rfCodeOFF) switchRelayOff();
rfCode = 0;
}
void rfBuildCodes() {
unsigned long code = 0;
// channel
unsigned int channel = rfChannel.toInt();
for (byte i = 0; i < 5; i++) {
code *= 3;
if (channel & 1) code += 1;
channel >>= 1;
}
// device
unsigned int device = rfDevice.toInt();
for (byte i = 0; i < 5; i++) {
code *= 3;
if (device != i) code += 2;
}
// status
code *= 9;
rfCodeOFF = code + 2;
rfCodeON = code + 6;
#ifdef DEBUG
Serial.print("RF code ON: ");
Serial.println(rfCodeON);
Serial.print("RF code OFF: ");
Serial.println(rfCodeOFF);
#endif
}
void rfCallback(unsigned long code, unsigned int period) {
rfCode = code;
}
void rfSetup() {
rfBuildCodes();
RemoteReceiver::init(RF_PIN, 3, rfCallback);
RemoteReceiver::enable();
}
#endif
// -----------------------------------------------------------------------------
// Configuration
// -----------------------------------------------------------------------------
bool saveConfig() {
File file = SPIFFS.open(CONFIG_PATH, "w");
if (file) {
file.println("ssid0=" + configSSID[0]);
file.println("pass0=" + configPASS[0]);
file.println("ssid1=" + configSSID[1]);
file.println("pass1=" + configPASS[1]);
file.println("ssid2=" + configSSID[2]);
file.println("pass2=" + configPASS[2]);
#if ENABLE_MQTT
file.println("mqttServer=" + mqttServer);
file.println("mqttPort=" + mqttPort);
file.println("mqttTopic=" + mqttTopic);
#endif
#if ENABLE_RF
file.println("rfChannel=" + rfChannel);
file.println("rfDevice=" + rfDevice);
#endif
file.close();
return true;
}
return false;
}
bool loadConfig() {
if (SPIFFS.exists(CONFIG_PATH)) {
#ifdef DEBUG
Serial.println("Reading config file");
#endif
// Read contents
File file = SPIFFS.open(CONFIG_PATH, "r");
String content = file.readString();
file.close();
// Parse contents
content.replace("\r\n", "\n");
content.replace("\r", "\n");
int start = 0;
int end = content.indexOf("\n", start);
while (end > 0) {
String line = content.substring(start, end);
#ifdef DEBUG
Serial.println(line);
#endif
if (line.startsWith("ssid0=")) configSSID[0] = line.substring(6);
else if (line.startsWith("pass0=")) configPASS[0] = line.substring(6);
else if (line.startsWith("ssid1=")) configSSID[1] = line.substring(6);
else if (line.startsWith("pass1=")) configPASS[1] = line.substring(6);
else if (line.startsWith("ssid2=")) configSSID[2] = line.substring(6);
else if (line.startsWith("pass2=")) configPASS[2] = line.substring(6);
#if ENABLE_MQTT
else if (line.startsWith("mqttServer=")) mqttServer = line.substring(11);
else if (line.startsWith("mqttPort=")) mqttPort = line.substring(9);
else if (line.startsWith("mqttTopic=")) mqttTopic = line.substring(10);
#endif
#if ENABLE_RF
else if (line.startsWith("rfChannel=")) rfChannel = line.substring(10);
else if (line.startsWith("rfDevice=")) rfDevice = line.substring(9);
#endif
if (end < 0) break;
start = end + 1;
end = content.indexOf("\n", start);
}
return true;
}
return false;
}
// -----------------------------------------------------------------------------
// OTA
// -----------------------------------------------------------------------------
#if ENABLE_OTA
void OTASetup() {
// Port defaults to 8266
ArduinoOTA.setPort(8266);
// Hostname defaults to esp8266-[ChipID]
ArduinoOTA.setHostname(getIdentifier());
// No authentication by default
ArduinoOTA.setPassword((const char *) ADMIN_PASS);
ArduinoOTA.onStart([]() {
#if ENABLE_RF
RemoteReceiver::disable();
#endif
#ifdef DEBUG
Serial.println("OTA - Start");
#endif
});
ArduinoOTA.onEnd([]() {
#ifdef DEBUG
Serial.println("OTA - End");
#endif
#if ENABLE_RF
RemoteReceiver::enable();
#endif
});
ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
#ifdef DEBUG
Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
#endif
});
ArduinoOTA.onError([](ota_error_t error) {
#ifdef DEBUG
Serial.printf("Error[%u]: ", error);
if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");
else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");
else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");
else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");
else if (error == OTA_END_ERROR) Serial.println("End Failed");
#endif
});
ArduinoOTA.begin();
}
void OTALoop() {
ArduinoOTA.handle();
}
#endif
// -----------------------------------------------------------------------------
// Energy Monitor
// -----------------------------------------------------------------------------
#if ENABLE_ENERGYMONITOR
void energyMonitorSetup() {
monitor.initCurrent(CURRENT_PIN, REFERENCE_VOLTAGE, CURRENT_RATIO);
monitor.setPrecision(CURRENT_PRECISION);
}
void energyMonitorLoop() {
static unsigned long next_measurement = millis();
static byte measurements = 0;
static double sum = 0;
if (millis() > next_measurement) {
double current = monitor.getCurrent(SAMPLES_X_MEASUREMENT);
sum += current;
++measurements;
#ifdef DEBUG
Serial.print("Power reading: ");
Serial.println(current * MAINS_VOLTAGE);
#endif
if (measurements == MEASUREMENTS_X_MESSAGE) {
char buffer[8];
sprintf(buffer, "%d", int(sum * MAINS_VOLTAGE / measurements));
#ifdef DEBUG
Serial.print("Power sending: ");
Serial.println(buffer);
#endif
#if ENABLE_MQTT
mqtt.publish(mqttPowerTopic, buffer, MQTT_RETAIN);
#endif
sum = 0;
measurements = 0;
}
next_measurement += MEASUREMENT_INTERVAL;
}
}
#endif
// -----------------------------------------------------------------------------
// Hardware (buttons, LEDs,...)
// -----------------------------------------------------------------------------
void hardwareSetup() {
Serial.begin(115200);
pinMode(RELAY_PIN, OUTPUT);
pinMode(LED_PIN, OUTPUT);
pinMode(RF_PIN, INPUT_PULLUP);
button1 = DebounceEvent(BUTTON_PIN);
SPIFFS.begin();
EEPROM.begin(1);
EEPROM.read(0) == 1 ? switchRelayOn() : switchRelayOff();
}
void blink(unsigned long delayOff, unsigned long delayOn) {
static unsigned long next = millis();
static bool status = HIGH;
if (next < millis()) {
status = !status;
digitalWrite(LED_PIN, status);
next += ((status) ? delayOff : delayOn);
}
}
void showStatus() {
if (WiFi.status() == WL_CONNECTED) {
blink(5000, 500);
} else {
blink(500, 500);
}
}
void hardwareLoop() {
if (button1.loop()) {
if (button1.getEvent() == EVENT_SINGLE_CLICK) toggleRelay();
if (button1.getEvent() == EVENT_DOUBLE_CLICK) wifiSetupAP();
if (button1.getEvent() == EVENT_LONG_CLICK) ESP.reset();
}
showStatus();
}
// -----------------------------------------------------------------------------
// Booting
// -----------------------------------------------------------------------------
void welcome() {
Serial.println();
Serial.println(APP_NAME);
Serial.println(APP_WEBSITE);
Serial.println(APP_AUTHOR);
Serial.println();
Serial.print("Device: ");
Serial.println(getIdentifier());
Serial.print("Last reset reason: ");
Serial.println(ESP.getResetReason());
Serial.println();
}
void setup() {
hardwareSetup();
welcome();
#if ENABLE_OTA
OTASetup();
#endif
loadConfig();
wifiSetupSTA(false);
#if ENABLE_WEBSERVER
webServerSetup();
#endif
#if ENABLE_MQTT
mqttSetup();
#endif
#if ENABLE_RF
rfSetup();
#endif
#if ENABLE_ENERGYMONITOR
energyMonitorSetup();
#endif
}
void loop() {
#if ENABLE_OTA
OTALoop();
#endif
wifiLoop();
#if ENABLE_MQTT
mqttLoop();
#endif
#if ENABLE_RF
rfLoop();
#endif
#if ENABLE_WEBSERVER
webServerLoop();
#endif
#if ENABLE_ENERGYMONITOR
energyMonitorLoop();
#endif
hardwareLoop();
delay(1);
}