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- // pre compiletime config
- #define SPIFFS_DBG
- #define SPIFFS_USE_MAGIC
- #define FIRMWARE_NAME "WiFi Switch"
- #define VERSION "0.1"
- #define COPYRIGHT " by Flo Kra"
- // default values, can later be overridden via configuration
- #define DEVICE_NAME "WiFi-Switch-1"
- #define RELAIS1_IMPULSE 0
- #define RELAIS2_IMPULSE 0
- #define RELAIS3_IMPULSE 0
- #define MQTT_SERVER "10.1.1.11"
- #define MQTT_PORT 1883
- #define MQTT_TOPIC_IN "Test/Switch1/cmd"
- #define MQTT_TOPIC_OUT "Test/Switch1/status"
- #define BUTTON_DEBOUNCE_TIME 120
- #define BUTTON_HOLD_TIME 750
- #define BUTTON1_TOPIC_OUT ""
- #define BUTTON2_TOPIC_OUT ""
- #define BUTTON3_TOPIC_OUT ""
- #define BUTTON1_PAYLOAD_OUT ""
- #define BUTTON2_PAYLOAD_OUT ""
- #define BUTTON3_PAYLOAD_OUT ""
- #define BUTTON1_HOLD_TOPIC_OUT ""
- #define BUTTON2_HOLD_TOPIC_OUT ""
- #define BUTTON3_HOLD_TOPIC_OUT ""
- #define BUTTON1_HOLD_PAYLOAD_OUT ""
- #define BUTTON2_HOLD_PAYLOAD_OUT ""
- #define BUTTON3_HOLD_PAYLOAD_OUT ""
- #define DOMOTICZ_IN_TOPIC "domoticz/in"
- #define DOMOTICZ_OUT_TOPIC "domoticz/out"
- #define DOMOTICZ_IDX_1 0
- #define DOMOTICZ_IDX_2 0
- #define DOMOTICZ_IDX_3 0
- #define CLEARCONF_TOKEN "TUES"
- // pin assignments, total relais/button count and default logic levels
- // can only be changed at compile time here
- // only use GPIO 0, 2, 4, 5, 12, 13, 14 !!
- // GPIO 0 and 2 have fixed 10k pullup and must remain high during boot (otherwise flash mode is entered)
- // GPIO 2 is also connected to builtin LED (active LOW) on most ESP boards, so don´t care or strip it
- // GPIO 15 has 10k pull-down, so could only be used as active-high input
- // GPIO 1 = TX and 3=RX, so could only be used when no UART is needed (using only TX for debug output and RX as GPIO3 is possible)
- // some GPIOs go high for some time at boot, so using only active-low logic is advisable, particularly for switching outputs
- #define RELAIS_COUNT 3
- #define PIN_RELAIS1 12
- //#define PIN_RELAIS2 4
- //#define PIN_RELAIS3 5
- #define BUTTONS_COUNT 3
- #define PIN_BUTTON1 0
- //#define PIN_BUTTON2 12
- //#define PIN_BUTTON3 13
- //#define PIN_LED1 0
- //#define PIN_LED2 0
- //#define PIN_LED3 0
- // default logic levels
- #define RELAISONSTATE LOW
- #define BUTTONONSTATE LOW
- #define LEDONSTATE LOW
- #include "PersWiFiManager.h"
- #include <ArduinoJson.h>
- #include <ESP8266WiFi.h>
- #include <WiFiClient.h>
- #include <ESP8266WebServer.h>
- #include <ESP8266mDNS.h>
- #include <ESP8266HTTPUpdateServer.h>
- #include "PubSubClient.h"
- #include <DNSServer.h>
- #include <FS.h>
- #ifndef MESSZ
- #define MESSZ 405 // Max number of characters in JSON message string (4 x DS18x20 sensors)
- #endif
- // Max message size calculated by PubSubClient is (MQTT_MAX_PACKET_SIZE < 5 + 2 + strlen(topic) + plength)
- #if (MQTT_MAX_PACKET_SIZE -TOPSZ -7) < MESSZ // If the max message size is too small, throw an error at compile time
- // See pubsubclient.c line 359
- #error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 512"
- #endif
- // config variables - do not change here!
- char deviceName[31];
- char http_user[31];
- char http_pass[31];
- char mqtt_server[41];
- int mqtt_port = MQTT_PORT;
- char mqtt_user[31];
- char mqtt_pass[31];
- char mqtt_willTopic[51];
- int mqtt_willQos = 2;
- boolean mqtt_willRetain = false;
- char mqtt_willMsg[31];
- char domoticz_out_topic[55];
- boolean mqtt_outRetain = false;
- char mqtt_topic_in[51];
- char mqtt_topic_out[51];
- boolean mqtt_btnRetain = false;
- char mqtt_topic_out_1[51];
- char mqtt_topic_out_2[51];
- char mqtt_topic_out_3[51];
- char mqtt_payload_out_1[31];
- char mqtt_payload_out_2[31];
- char mqtt_payload_out_3[31];
- char mqtt_topic_out_hold_1[51];
- char mqtt_topic_out_hold_2[51];
- char mqtt_topic_out_hold_3[51];
- char mqtt_payload_out_hold_1[31];
- char mqtt_payload_out_hold_2[31];
- char mqtt_payload_out_hold_3[31];
- char mqtt_allOnOffTopic[51];
- int domoticzIdx[3] = {DOMOTICZ_IDX_1, DOMOTICZ_IDX_2, DOMOTICZ_IDX_3}; // initially set to 0, must be defined in config
- int relais_impulse[3] = {RELAIS1_IMPULSE, RELAIS2_IMPULSE, RELAIS3_IMPULSE};
- boolean relais_invert[3] = {false, false, false};
- boolean button_invert[3] = {false, false, false};
- boolean led_invert[3] = {false, false, false};
- int debounceTime = BUTTON_DEBOUNCE_TIME;
- int buttonHoldTime = BUTTON_HOLD_TIME;
- boolean relais_enabled[3] = {true, false, false};
- boolean button_enabled[3] = {true, false, false};
- boolean led_enabled[3] = {false, false, false};
- byte hldToRel[3] = {0, 0, 0};
- // global variables
- long mqttLastReconnectAttempt = 0;
- int mqttReconnects = 0;
- boolean relais_state[RELAIS_COUNT];
- byte relais_pins[3];
- byte buttons_pins[3];
- byte leds_pins[3];
- boolean useDomoticz = false; // will be set to true in setup() if idx-values other than 0 are configured
- boolean domoticzOutParseData = false; // indicates that domoticz/out json data is buffered, will then be parsed in next loop() run
- boolean domoticzOutParserBusy = false; // indicates that domoticz/out json data is currently processed - no futher data will be accepted until finished
- char domoticzOutPayload[450]; // buffer for domoticz/out data
- boolean updateDomoticz[3] = { true, true, true }; // flag to update domoticz for device 1-3 (preventing infinite loop if triggered by domoticz/out via mqtt)
- byte lastSwitchSource[3] = {0, 0, 0}; // 0 = button, 1 = serial/mqtt cmd, 2 = web, 3 = domoticz/out
- unsigned long lastSwitchTime[3] = { 0, 0, 0 }; // this is set to millis() when relais was toggled by button or web. domoticz/out updates for this Idx are then filtered out for [dismissUpdateFromDomoticzTimeout]
- int dismissUpdateFromDomoticzTimeout = 1500;
- char cmdPayload[101]; // buffer for commands
- boolean cmdInQueue = false; // command is queued and will be processed next loop() run
- bool saveConfigToFlash = false;
- bool saveConfig2ToFlash = false;
- bool saveConfigHwToFlash = false;
- byte mqttMode = 0;
- WiFiClient espClient;
- void mqttCallback(char* topic, byte* payload, unsigned int length);
- PubSubClient mqttclient(espClient);
- ESP8266WebServer httpServer(80);
- DNSServer dnsServer;
- PersWiFiManager persWM(httpServer, dnsServer);
- ESP8266HTTPUpdateServer httpUpdater;
- void setup() {
- Serial.begin(115200);
- delay(500);
- Serial.println();
- Serial.print(FIRMWARE_NAME);
- Serial.print(" v");
- Serial.print(VERSION);
- Serial.println(COPYRIGHT);
- Serial.println("starting...");
- // set config default parameters
- #ifdef PIN_RELAIS1
- relais_pins[0] = PIN_RELAIS1;
- #endif
- #ifdef PIN_RELAIS2
- relais_pins[1] = PIN_RELAIS2;
- #endif
- #ifdef PIN_RELAIS3
- relais_pins[2] = PIN_RELAIS3;
- #endif
- #ifdef PIN_BUTTON1
- buttons_pins[0] = PIN_BUTTON1;
- #endif
- #ifdef PIN_BUTTON2
- buttons_pins[1] = PIN_BUTTON2;
- #endif
- #ifdef PIN_BUTTON3
- buttons_pins[2] = PIN_BUTTON3;
- #endif
- #ifdef PIN_LED1
- leds_pins[0] = PIN_LED1;
- #endif
- #ifdef PIN_LED2
- leds_pins[1] = PIN_LED2;
- #endif
- #ifdef PIN_LED3
- leds_pins[2] = PIN_LED3;
- #endif
- strlcpy(deviceName, DEVICE_NAME, 31);
- strlcpy(mqtt_server, MQTT_SERVER, 41);
- strlcpy(mqtt_topic_in, MQTT_TOPIC_IN, 51);
- strlcpy(mqtt_topic_out, MQTT_TOPIC_OUT, 51);
- strlcpy(mqtt_topic_out_1, BUTTON1_TOPIC_OUT, 51);
- strlcpy(mqtt_topic_out_2, BUTTON2_TOPIC_OUT, 51);
- strlcpy(mqtt_topic_out_3, BUTTON3_TOPIC_OUT, 51);
- strlcpy(mqtt_payload_out_1, BUTTON1_PAYLOAD_OUT, 31);
- strlcpy(mqtt_payload_out_2, BUTTON2_PAYLOAD_OUT, 31);
- strlcpy(mqtt_payload_out_3, BUTTON3_PAYLOAD_OUT, 31);
- strlcpy(mqtt_topic_out_hold_1, BUTTON1_HOLD_TOPIC_OUT, 51);
- strlcpy(mqtt_topic_out_hold_2, BUTTON2_HOLD_TOPIC_OUT, 51);
- strlcpy(mqtt_topic_out_hold_3, BUTTON3_HOLD_TOPIC_OUT, 51);
- strlcpy(mqtt_payload_out_hold_1, BUTTON1_HOLD_PAYLOAD_OUT, 31);
- strlcpy(mqtt_payload_out_hold_2, BUTTON2_HOLD_PAYLOAD_OUT, 31);
- strlcpy(mqtt_payload_out_hold_3, BUTTON3_HOLD_PAYLOAD_OUT, 31);
- strlcpy(domoticz_out_topic, DOMOTICZ_OUT_TOPIC, 51); // changeable subscription topic, as domoticz supports different flat/hierarchical out-topics
- Serial.println("default config values loaded..");
- Serial.println("Mounting FS...");
- if (!SPIFFS.begin()) {
- Serial.println("Failed to mount file system");
- return;
- }
- //SPIFFS.format();
- //Serial.print("Format SPIFFS complete.");
- if (!SPIFFS.exists("/formatComplete.txt")) {
- Serial.println("Please wait 30 secs for SPIFFS to be formatted");
- SPIFFS.format();
- Serial.println("Spiffs formatted");
- File f = SPIFFS.open("/formatComplete.txt", "w");
- if (!f) {
- Serial.println("file open failed");
- } else {
- f.println("Format Complete");
- }
- f.close();
- } else {
- Serial.println("SPIFFS is formatted. Moving along...");
- }
- // // load config from SPIFFS if files exist
- if (!loadConfigHw()) {
- Serial.println("Failed to load confhw.json");
- } else {
- Serial.println("confhw.json loaded");
- }
- if (!loadConfig()) {
- Serial.println("Failed to load conf.json");
- } else {
- Serial.println("conf.json loaded");
- }
- if (!loadConfig2()) {
- Serial.println("Failed to load conf2.json");
- } else {
- Serial.println("conf2.json loaded");
- }
- mqttPrepareConnection();
- // set relais pin modes
- for (int i = 0; i < 3; i++) {
- if (relais_enabled[i]) {
- if (relais_pins[i] == 0 || relais_pins[i] == 2 || relais_pins[i] == 4 || relais_pins[i] == 5 || relais_pins[i] == 12 || relais_pins[i] == 13 || relais_pins[i] == 14 || relais_pins[i] == 15) {
- pinMode(relais_pins[i], OUTPUT);
- if (relais_invert[i]) digitalWrite(relais_pins[i], RELAISONSTATE);
- else digitalWrite(relais_pins[i], !RELAISONSTATE);
- Serial.print("set GPIO ");
- Serial.print(relais_pins[i]);
- Serial.print(" as Output for Relais ");
- Serial.println(i + 1);
- }
- }
- }
- // set button pin modes
- for (int i = 0; i < 3; i++) {
- if (button_enabled[i]) {
- if (buttons_pins[i] == 0 || buttons_pins[i] == 2 || buttons_pins[i] == 4 || buttons_pins[i] == 5 || buttons_pins[i] == 12 || buttons_pins[i] == 13 || buttons_pins[i] == 14 || buttons_pins[i] == 15) {
- if (button_invert[i]) pinMode(buttons_pins[i], INPUT);
- else pinMode(buttons_pins[i], INPUT_PULLUP);
- Serial.print("set GPIO ");
- Serial.print(buttons_pins[i]);
- Serial.print(" as Input for Button ");
- Serial.println(i + 1);
- }
- }
- }
- // set LED pin modes
- for (int i = 0; i < 3; i++) {
- if (led_enabled[i]) {
- if (leds_pins[i] == 0 || leds_pins[i] == 2 || leds_pins[i] == 4 || leds_pins[i] == 5 || leds_pins[i] == 12 || leds_pins[i] == 13 || leds_pins[i] == 14 || leds_pins[i] == 15) {
- pinMode(leds_pins[i], OUTPUT);
- if (led_invert[i]) digitalWrite(leds_pins[i], LEDONSTATE);
- else digitalWrite(leds_pins[i], !LEDONSTATE);
- Serial.print("set GPIO ");
- Serial.print(leds_pins[i]);
- Serial.print(" as Output for status LED ");
- Serial.println(i + 1);
- }
- }
- }
- checkUseDomoticz();
- delay(500);
- //optional code handlers to run everytime wifi is connected...
- persWM.onConnect([]() {
- Serial.print("wifi connected to ");
- Serial.print(WiFi.SSID());
- Serial.print(", IP: ");
- Serial.println(WiFi.localIP());
- });
- //...or AP mode is started
- persWM.onAp([]() {
- Serial.print("AP MODE: ");
- Serial.println(persWM.getApSsid());
- });
- //sets network name for AP mode
- persWM.setApCredentials(DEVICE_NAME);
- //persWM.setApCredentials(DEVICE_NAME, "password"); optional password
- //make connecting/disconnecting non-blocking
- persWM.setConnectNonBlock(true);
- //in non-blocking mode, program will continue past this point without waiting
- persWM.begin();
- delay(500);
- httpServerInit();
- mqttClientInit();
- Serial.println("setup complete.");
- delay(1000);
- } //void setup
- void loop() {
- checkMillis();
-
- persWM.handleWiFi(); //in non-blocking mode, handleWiFi must be called in the main loop
-
- yield();
- dnsServer.processNextRequest();
-
- httpServer.handleClient();
-
- yield();
- mqttHandleConnection();
-
- checkButtonStates();
-
- yield();
- evalCmd();
-
- if ( domoticzOutParseData ) {
- parseDomoticzOut();
- yield();
- }
- if (Serial.available()) {
- serialEvent();
- yield();
- }
- } //void loop
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