#include "EnvironmentalMeasurementPlugin.h" #include "MeshService.h" #include "NodeDB.h" #include "RTC.h" #include "Router.h" #include "configuration.h" #include "main.h" #include "../mesh/generated/environmental_measurement.pb.h" #include #include #include #define DHT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS 1000 // Some sensors (the DHT11) have a minimum required duration between read attempts #define FAILED_STATE_SENSOR_READ_MULTIPLIER 10 #define DISPLAY_RECEIVEID_MEASUREMENTS_ON_SCREEN true #ifdef HAS_EINK // The screen is bigger so use bigger fonts #define FONT_SMALL ArialMT_Plain_16 #define FONT_MEDIUM ArialMT_Plain_24 #define FONT_LARGE ArialMT_Plain_24 #else #define FONT_SMALL ArialMT_Plain_10 #define FONT_MEDIUM ArialMT_Plain_16 #define FONT_LARGE ArialMT_Plain_24 #endif #define fontHeight(font) ((font)[1] + 1) // height is position 1 #define FONT_HEIGHT_SMALL fontHeight(FONT_SMALL) #define FONT_HEIGHT_MEDIUM fontHeight(FONT_MEDIUM) int32_t EnvironmentalMeasurementPlugin::runOnce() { #ifndef NO_ESP32 // this only works on ESP32 devices /* Uncomment the preferences below if you want to use the plugin without having to configure it from the PythonAPI or WebUI. */ /*radioConfig.preferences.environmental_measurement_plugin_measurement_enabled = 1; radioConfig.preferences.environmental_measurement_plugin_screen_enabled = 1; radioConfig.preferences.environmental_measurement_plugin_read_error_count_threshold = 5; radioConfig.preferences.environmental_measurement_plugin_update_interval = 30; radioConfig.preferences.environmental_measurement_plugin_recovery_interval = 60; radioConfig.preferences.environmental_measurement_plugin_display_farenheit = true; radioConfig.preferences.environmental_measurement_plugin_sensor_pin = 13; radioConfig.preferences.environmental_measurement_plugin_sensor_type = RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType::RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_DHT11;*/ if (! (radioConfig.preferences.environmental_measurement_plugin_measurement_enabled || radioConfig.preferences.environmental_measurement_plugin_screen_enabled)){ // If this plugin is not enabled, and the user doesn't want the display screen don't waste any OSThread time on it return (INT32_MAX); } if (firstTime) { // This is the first time the OSThread library has called this function, so do some setup firstTime = 0; if (radioConfig.preferences.environmental_measurement_plugin_measurement_enabled) { DEBUG_MSG("EnvironmentalMeasurement: Initializing\n"); // it's possible to have this plugin enabled, only for displaying values on the screen. // therefore, we should only enable the sensor loop if measurement is also enabled switch(radioConfig.preferences.environmental_measurement_plugin_sensor_type) { case RadioConfig_UserPreferences_EnvironmentalMeasurementSensorType_DHT11: dht = new DHT(radioConfig.preferences.environmental_measurement_plugin_sensor_pin,DHT11); this->dht->begin(); this->dht->read(); DEBUG_MSG("EnvironmentalMeasurement: Opened DHT11 on pin: %d\n",radioConfig.preferences.environmental_measurement_plugin_sensor_pin); break; default: DEBUG_MSG("EnvironmentalMeasurement: Invalid sensor type selected; Disabling plugin"); return (INT32_MAX); break; } // begin reading measurements from the sensor // DHT have a max read-rate of 1HZ, so we should wait at least 1 second // after initializing the sensor before we try to read from it. // returning the interval here means that the next time OSThread // calls our plugin, we'll run the other branch of this if statement // and actually do a "sendOurEnvironmentalMeasurement()" return(DHT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS); } return (INT32_MAX); } else { if (!radioConfig.preferences.environmental_measurement_plugin_measurement_enabled) { // if we somehow got to a second run of this plugin with measurement disabled, then just wait forever // I can't imagine we'd ever get here though. return (INT32_MAX); } // this is not the first time OSThread library has called this function // so just do what we intend to do on the interval if(sensor_read_error_count > radioConfig.preferences.environmental_measurement_plugin_read_error_count_threshold) { if (radioConfig.preferences.environmental_measurement_plugin_recovery_interval > 0 ) { DEBUG_MSG( "EnvironmentalMeasurement: TEMPORARILY DISABLED; The environmental_measurement_plugin_read_error_count_threshold has been exceed: %d. Will retry reads in %d seconds\n", radioConfig.preferences.environmental_measurement_plugin_read_error_count_threshold, radioConfig.preferences.environmental_measurement_plugin_recovery_interval); sensor_read_error_count = 0; return(radioConfig.preferences.environmental_measurement_plugin_recovery_interval*1000); } DEBUG_MSG( "EnvironmentalMeasurement: DISABLED; The environmental_measurement_plugin_read_error_count_threshold has been exceed: %d. Reads will not be retried until after device reset\n", radioConfig.preferences.environmental_measurement_plugin_read_error_count_threshold); return(INT32_MAX); } else if (sensor_read_error_count > 0){ DEBUG_MSG("EnvironmentalMeasurement: There have been %d sensor read failures. Will retry %d more times\n", sensor_read_error_count, radioConfig.preferences.environmental_measurement_plugin_read_error_count_threshold-sensor_read_error_count); } if (!sendOurEnvironmentalMeasurement() ){ // if we failed to read the sensor, then try again // as soon as we can according to the maximum polling frequency return(DHT_SENSOR_MINIMUM_WAIT_TIME_BETWEEN_READS); } } // The return of runOnce is an int32 representing the desired number of // miliseconds until the function should be called again by the // OSThread library. Multiply the preference value by 1000 to convert seconds to miliseconds return(radioConfig.preferences.environmental_measurement_plugin_update_interval * 1000); #endif } bool EnvironmentalMeasurementPlugin::wantUIFrame() { return radioConfig.preferences.environmental_measurement_plugin_screen_enabled; } String GetSenderName(const MeshPacket &mp) { String sender; auto node = nodeDB.getNode(getFrom(&mp)); if (node){ sender = node->user.short_name; } else { sender = "UNK"; } return sender; } uint32_t GetTimeSinceMeshPacket(const MeshPacket *mp) { uint32_t now = getTime(); uint32_t last_seen = mp->rx_time; int delta = (int)(now - last_seen); if (delta < 0) // our clock must be slightly off still - not set from GPS yet delta = 0; return delta; } float EnvironmentalMeasurementPlugin::CelsiusToFarenheit(float c) { return (c*9)/5 + 32; } void EnvironmentalMeasurementPlugin::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y) { display->setTextAlignment(TEXT_ALIGN_LEFT); display->setFont(FONT_MEDIUM); display->drawString(x, y, "Environment"); if (lastMeasurementPacket == nullptr) { display->setFont(FONT_SMALL); display->drawString(x, y += fontHeight(FONT_MEDIUM), "No measurement"); //DEBUG_MSG("EnvironmentalMeasurement: No previous measurement; not drawing frame\n"); return; } EnvironmentalMeasurement lastMeasurement; uint32_t agoSecs = GetTimeSinceMeshPacket(lastMeasurementPacket); String lastSender = GetSenderName(*lastMeasurementPacket); auto &p = lastMeasurementPacket->decoded; if (!pb_decode_from_bytes(p.payload.bytes, p.payload.size, EnvironmentalMeasurement_fields, &lastMeasurement)) { display->setFont(FONT_SMALL); display->drawString(x, y += fontHeight(FONT_MEDIUM), "Measurement Error"); DEBUG_MSG("EnvironmentalMeasurement: unable to decode last packet"); return; } display->setFont(FONT_SMALL); String last_temp = String(lastMeasurement.temperature,0) +"°C"; if (radioConfig.preferences.environmental_measurement_plugin_display_farenheit){ last_temp = String(CelsiusToFarenheit(lastMeasurement.temperature),0) +"°F";; } display->drawString(x, y += fontHeight(FONT_MEDIUM), lastSender+": "+last_temp +"/"+ String(lastMeasurement.relative_humidity,0) + "%("+String(agoSecs)+"s)"); } bool EnvironmentalMeasurementPlugin::handleReceivedProtobuf(const MeshPacket &mp, const EnvironmentalMeasurement *p) { if (!(radioConfig.preferences.environmental_measurement_plugin_measurement_enabled || radioConfig.preferences.environmental_measurement_plugin_screen_enabled)){ // If this plugin is not enabled in any capacity, don't handle the packet, and allow other plugins to consume return false; } String sender = GetSenderName(mp); DEBUG_MSG("EnvironmentalMeasurement: Received data from %s\n", sender); DEBUG_MSG("EnvironmentalMeasurement->relative_humidity: %f\n", p->relative_humidity); DEBUG_MSG("EnvironmentalMeasurement->temperature: %f\n", p->temperature); lastMeasurementPacket = packetPool.allocCopy(mp); return false; // Let others look at this message also if they want } bool EnvironmentalMeasurementPlugin::sendOurEnvironmentalMeasurement(NodeNum dest, bool wantReplies) { EnvironmentalMeasurement m; m.barometric_pressure = 0; // TODO: Add support for barometric sensors DEBUG_MSG("-----------------------------------------\n"); DEBUG_MSG("EnvironmentalMeasurement: Read data\n"); if (!this->dht->read(true)){ sensor_read_error_count++; DEBUG_MSG("EnvironmentalMeasurement: FAILED TO READ DATA\n"); return false; } m.relative_humidity = this->dht->readHumidity(); m.temperature = this->dht->readTemperature(); DEBUG_MSG("EnvironmentalMeasurement->relative_humidity: %f\n", m.relative_humidity); DEBUG_MSG("EnvironmentalMeasurement->temperature: %f\n", m.temperature); sensor_read_error_count = 0; MeshPacket *p = allocDataProtobuf(m); p->to = dest; p->decoded.want_response = wantReplies; service.sendToMesh(p); return true; }