489 lines
13 KiB
C++
489 lines
13 KiB
C++
// Standard ESP8266 libs from project folder
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#include <ESP8266mDNS.h>
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#include <ESP8266HTTPUpdateServer.h>
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#include <ESP8266WiFi.h>
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#include <DNSServer.h>
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#include <ESP8266WebServer.h>
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#include <ESP8266HTTPClient.h>
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#include <WiFiClient.h> // WiFiClient
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#include <WiFiManager.h> // WiFiManager from bib manager
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// Project includes
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#include "constants.h"
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#include "config.h"
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#include "config_user.h"
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//*************************************************************************//
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// check if some settings are correct
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#ifdef HTTP_CALL_ON_WINDSPEED_EXCEED
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#if (HTTP_CALL_ON_WINDSPEED_INTERVAL_S < WIND_SENSOR_MEAS_TIME_S)
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#error "HTTP_CALL_ON_WINDSPEED_INTERVAL_S < WIND_SENSOR_MEAS_TIME_S"
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#endif
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#endif
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//*************************************************************************//
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// constant variables
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const uint8_t VALUES = 8; // see constants.h file - count of number of SENSOR_ defines
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float currentSensorData[VALUES] = { nanf("no value"), nanf("no value"), nanf("no value"),
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nanf("no value"), nanf("no value"), nanf("no value"),
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nanf("no value"), nanf("no value") };
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float (*sensors[VALUES])() = {};
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uint8_t sensor_value[] = { SENSOR_TEMPERATURE,
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SENSOR_HUMIDITY,
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SENSOR_LIGHT,
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SENSOR_WINDSPEED,
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SENSOR_PRESSURE,
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SENSOR_BAT_VOLTAGE,
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SENSOR_ESAVEMODE,
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SENSOR_BATCHARGESTATE };
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uint32_t update_sensor_cnt = 0;
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uint32_t update_webserver_cnt = 0;
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uint32_t update_windspeed_exceed_cnt = 0;
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uint32_t wifi_check_interval_counter = 0;
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const String wifiName = "oko-weather-" + DEVICE_NAME;
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WiFiManager wifiManager;
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uint8_t fsm_state = FSM_STATE_WU;
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uint8_t sensor_cnt = 0;
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boolean validData = false;
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//*************************************************************************//
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void debug(String x)
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{
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#ifdef DEBUG
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Serial.println(x);
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#endif
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#ifdef USE_LOGGER
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logdata(String(millis()) + ":" + x);
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#endif
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}
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//*************************************************************************//
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void setup()
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{
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#if defined(DEBUG) || defined(SERIAL_FEATURE)
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Serial.begin(115200);
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#endif
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// Pin settings
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pinMode(BAT_CHARGED_PIN, INPUT);
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pinMode(BAT_CHARGING_PIN, INPUT);
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pinMode(STATUS_LED_PIN, OUTPUT);
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pinMode(ANEMOMETER_PIN, INPUT_PULLUP);
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pinMode(A0, INPUT);
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digitalWrite(STATUS_LED_PIN, LOW);
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#ifndef BAT_PINS_D34
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debug("D5 D6 used as battery pins");
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#else
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debug("D3 D4 used as battery pins");
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#endif
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#ifdef BATTERY_POWERED
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criticalBatCheck();
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#endif
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wifiConnect();
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debug("Connected!");
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#ifdef INFLUXDB_FEATURE
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influxdb_begin();
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#endif
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initSensors();
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#ifdef WEBUPDATER_FEATURE
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#ifndef BATTERY_POWERED
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setupWebUpdater(DEVICE_NAME, WiFi.localIP().toString());
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#endif
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#endif
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//It's magic! leave in
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delay(100);
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#ifdef BATTERY_POWERED
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debug("battery powered");
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_loop();
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digitalWrite(STATUS_LED_PIN, LOW);
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criticalBatCheck();
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WiFi.mode(WIFI_OFF);
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WiFi.forceSleepBegin();
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debug("deep sleep");
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// the ESP.deepSleep requires microseconds as input, after the
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// sleep the system will run into the setup routine
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ESP.deepSleep(POWERSAVING_SLEEP_S * 1000000, WAKE_RF_DEFAULT);
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delay(100);
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#endif
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#ifdef ENABLE_WATCHDOG
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// Enable the internal watchdog
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ESP.wdtEnable(WATCHDOG_TIMEOUT_MS);
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#endif
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}
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//*************************************************************************//
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void initSensors()
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{
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// Initialize and configure the sensors
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#ifdef SENSOR_APDS9930
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if (sensor_apds9930_begin()) {
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sensors[SENSOR_LIGHT] = &apds9930_light;
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}
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#endif
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#ifdef SENSOR_APDS9960
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if (sensor_apds9960_begin()) {
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sensors[SENSOR_LIGHT] = &apds9960_light;
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}
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#endif
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#ifdef SENSOR_BME280
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//Temperature + pressure
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if (sensor_bme280_begin(BME_ADDRESS)) {
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sensors[SENSOR_TEMPERATURE] = &bme280_temperature;
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sensors[SENSOR_HUMIDITY] = &bme280_humidity;
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sensors[SENSOR_PRESSURE] = &bme280_pressure;
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}
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#endif
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#ifdef SENSOR_WIND
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sensors[SENSOR_WINDSPEED] = &wind_speed;
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#endif
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#ifdef SENSOR_BATTERY
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sensors[SENSOR_BAT_VOLTAGE] = &battery_voltage;
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sensors[SENSOR_BATCHARGESTATE] = &battery_charging;
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sensors[SENSOR_ESAVEMODE] = &isEnergySavingMode;
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#endif
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}
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//*************************************************************************//
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void wifiConnectionCheck()
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{
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if ((wifi_check_interval_counter + WIFI_CHECK_INTERVAL_MS) > millis())
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{
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// if check interval is not exceeded abort check
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return;
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}
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wifi_check_interval_counter = millis();
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if (WiFi.status() == WL_CONNECTED)
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{
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// if we are connected
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return;
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}
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debug("no connection or time to check " + String(WiFi.status() == WL_CONNECTED));
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wifiConnect();
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}
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void wifiConnect()
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{
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// Establish WiFi connection if not already applied
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wifiManager.setMinimumSignalQuality(WIFI_MINIMUM_SIGNAL_QUALITY);
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// the time in seconds to wait for the known wifi connection
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wifiManager.setConnectTimeout(WIFI_AUTOCONNECT_TIMEOUT_S);
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// the time in seconds to wait for the user to configure the device
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wifiManager.setTimeout(WIFI_CONFIG_PORTAL_TIMEOUT_S);
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while (!wifiManager.autoConnect(wifiName.c_str(), "DEADBEEF"))
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{
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#ifdef SLEEP_IF_NO_WLAN_CONNECTION
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// If autoconnect to WLAN failed and no client connected, go to deep sleep
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ESP.deepSleep(POWERSAVING_SLEEP_S * 1000000, WAKE_RF_DEFAULT);
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delay(100);
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#endif
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#ifndef SLEEP_IF_NO_WLAN_CONNECTION
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// sleep a few seconds and go on trying to connect
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debug("WiFi connection failed, try again in 5 seconds...");
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delay(5000);
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#endif
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}
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}
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//*************************************************************************//
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#ifdef BATTERY_POWERED
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void criticalBatCheck()
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{
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float volt = battery_voltage();
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if (volt <= BAT_EMERGENCY_DEEPSLEEP_VOLTAGE)
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{
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debug("Bat Voltage: " + String(volt) + " V");
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debug("Low battery, going into deep sleep.");
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// Casting to an unsigned int, so it fits into the integer range
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ESP.deepSleep(1U * EMERGENCY_SLEEP_S * 1000000); // battery low, shutting down
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delay(100);
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}
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}
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#endif
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//*************************************************************************//
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void loop()
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{
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#ifdef ENABLE_WATCHDOG
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ESP.wdtFeed();
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#endif
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#ifdef BATTERY_POWERED
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delay(50);
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return;
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#endif
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// call sub loop function
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_loop();
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// Needed to give WIFI time to function properly
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delay(DELAY_LOOP_MS);
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}
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//*************************************************************************//
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void _loop()
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{
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switch (fsm_state)
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{
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case FSM_STATE_WU:
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//debug("web updater call if required");
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#ifdef WEBUPDATER_FEATURE
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if ((update_webserver_cnt + (UPDATE_WEBSERVER_INTVERVAL_S * 1000)) <= millis())
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{
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//debug("web updater call");
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update_webserver_cnt = millis();
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doWebUpdater();
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}
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#endif
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fsm_state = FSM_STATE_WSE;
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break;
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case FSM_STATE_WSE:
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debug("wind speed exceeded check if required");
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#ifdef HTTP_CALL_ON_WINDSPEED_EXCEED
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if ((update_windspeed_exceed_cnt + (HTTP_CALL_ON_WINDSPEED_INTERVAL_S * 1000)) <= millis())
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{
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debug("reading wind sensor exceed");
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update_windspeed_exceed_cnt = millis();
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readWindSpeedExceed();
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}
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#endif
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fsm_state = FSM_STATE_RS;
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break;
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case FSM_STATE_RS:
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//debug("reset time check if required");
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#ifdef RESET_ESP_TIME_INTERVAL
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// if millis() reached interval restart ESP
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if (RESET_ESP_TIME_INTERVAL_MS <= millis())
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{
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debug("resetting firmware intentionally");
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// Push reset button after flashing once or do a manual power cycle to get the functionality working.
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ESP.restart();
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}
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#endif
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fsm_state = FSM_STATE_WC;
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break;
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case FSM_STATE_WC:
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wifiConnectionCheck();
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fsm_state = FSM_STATE_WS;
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break;
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case FSM_STATE_WS:
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//debug("disable measure of wind speed if required");
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#ifdef defined(BATTERY_POWERED) && defined(SENSOR_WIND)
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if (energySavingMode() == 1) {
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// Disable expensive tasks
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sensors[SENSOR_WINDSPEED] = 0;
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//debug("read of wind sensor because of low battery disabled");
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} else {
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sensors[SENSOR_WINDSPEED] = &wind_speed;
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//debug("read of wind sensor because of high battery enabled");
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}
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#endif
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sensor_cnt = 0;
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fsm_state = FSM_STATE_US;
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break;
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case FSM_STATE_US:
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//debug("read sensor data check");
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if ((update_sensor_cnt + (UPDATE_SENSOR_INTERVAL_S * 1000)) <= millis())
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{
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debug("read sensor data " + String(sensor_cnt));
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if (sensors[sensor_cnt])
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{
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debug("sensors[sensor_value[" + String(sensor_cnt) + " ]]=" + String((int)sensors[sensor_value[sensor_cnt]]) + ":" + String(sensor_value[sensor_cnt]));
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currentSensorData[sensor_cnt] = sensors[sensor_value[sensor_cnt]]();
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//currentSensorData[sensor_cnt] = sensor_cnt;
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} else {
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debug("sensors[sensor_value[" + String(sensor_cnt) + "]]=nan");
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currentSensorData[sensor_cnt] = nan("no value");
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}
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if (sensor_cnt < VALUES)
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{
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sensor_cnt++;
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fsm_state = FSM_STATE_US; // jump to same state again, more sensors to read
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} else {
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update_sensor_cnt = millis();
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sensor_cnt = 0;
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fsm_state = FSM_STATE_SC; // next state
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}
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} else {
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debug("skip read sensor data");
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fsm_state = FSM_STATE_WU; // no new data, reset FSM
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}
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break;
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case FSM_STATE_SC:
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debug("log to serial if required");
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#ifdef SERIAL_FEATURE
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logToSerial(currentSensorData);
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#endif
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fsm_state = FSM_STATE_ID;
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break;
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case FSM_STATE_ID:
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debug("send data to influxdb if required");
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#ifdef INFLUXDB_FEATURE
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for (uint8_t i = 0; i < 5 and validData == false; i++)
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{
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if (currentSensorData[i] != 0)
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{
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validData = true;
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}
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}
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if (validData == true)
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{
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// send data only if valid data is available
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pushToInfluxDB(DEVICE_NAME, currentSensorData);
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}
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#endif
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fsm_state = FSM_STATE_SD;
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break;
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case FSM_STATE_SD:
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debug("set sensor data in webupdater if required");
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#ifdef WEBUPDATER_FEATURE
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setSensorData(currentSensorData);
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#endif
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fsm_state = FSM_STATE_WU;
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break;
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default:
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fsm_state = FSM_STATE_WU;
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break;
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} // close of switch
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//delay(100); // TODO warum hier ein delay?
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//debug("FSM state = " + String(fsm_state));
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/*if (fsm_state == FSM_STATE_WU)
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{
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debug("----------");
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}*/
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}
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//*************************************************************************//
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void readWindSpeedExceed()
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{
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if (sensors[SENSOR_WINDSPEED])
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{
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// read from windspeed sensorSTATUS_LED_PIN
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digitalWrite(STATUS_LED_PIN, HIGH);
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currentSensorData[SENSOR_WINDSPEED] = sensors[SENSOR_WINDSPEED]();
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digitalWrite(STATUS_LED_PIN, LOW);
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if (currentSensorData[SENSOR_WINDSPEED] >= HTTP_CALL_ON_WINDSPEED_EXCEED_MPS)
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{
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digitalWrite(STATUS_LED_PIN, HIGH);
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// call the url HTTP_CALL_ON_WINDSPEED_URL
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WiFiClient client;
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HTTPClient http;
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http.begin(client, String(HTTP_CALL_ON_WINDSPEED_URL).c_str());
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// Send HTTP GET request
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int httpResponseCode = http.GET();
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if (httpResponseCode > 0) {
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String response = http.getString();
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debug("http response code: " + String(httpResponseCode) + " = " + response);
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// TODO handle response
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}
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http.end();
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debug("Called windspeed exceed callout");
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digitalWrite(STATUS_LED_PIN, LOW);
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}
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#ifdef WEBUPDATER_FEATURE
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setSensorData(currentSensorData);
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#endif
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} else {
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currentSensorData[SENSOR_WINDSPEED] = nan("no value");
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}
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}
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//*************************************************************************//
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void logToSerial(float sensorValues[])
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{
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Serial.println("");
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Serial.println("Current readings:");
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Serial.println("Temperature: " + String(sensorValues[SENSOR_TEMPERATURE]) + " °C");
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Serial.println("Humidity: " + String(sensorValues[SENSOR_HUMIDITY]) + " %");
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Serial.println("Light: " + String(sensorValues[SENSOR_LIGHT]) + " Lux");
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Serial.println("Windspeed: " + String(sensorValues[SENSOR_WINDSPEED]) + " km/h");
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Serial.println("Pressure: " + String(sensorValues[SENSOR_PRESSURE]) + " hPa");
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Serial.println("Bat Voltage: " + String(sensorValues[SENSOR_BAT_VOLTAGE]) + " V");
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Serial.println("Bat charge state: " + String(sensorValues[SENSOR_BATCHARGESTATE]));
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Serial.println("Energy saving: " + String(sensorValues[SENSOR_ESAVEMODE]));
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}
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//*************************************************************************//
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