add db meter

airrohr-firmware/airrohr-cfg.h

@@ -36,6 +36,7 @@ enum ConfigShapeId {
 	Config_www_basicauth_enabled,
 	Config_dht_read,
 	Config_htu21d_read,
+	Config_dbmeter_read,
 	Config_ppd_read,
 	Config_sds_read,
 	Config_gc_read,
@@ -109,6 +110,7 @@ static constexpr char CFG_KEY_FS_PWD[] PROGMEM = "fs_pwd";
 static constexpr char CFG_KEY_WWW_BASICAUTH_ENABLED[] PROGMEM = "www_basicauth_enabled";
 static constexpr char CFG_KEY_DHT_READ[] PROGMEM = "dht_read";
 static constexpr char CFG_KEY_HTU21D_READ[] PROGMEM = "htu21d_read";
+static constexpr char CFG_KEY_DBMETER_READ[] PROGMEM = "dbmeter_read";
 static constexpr char CFG_KEY_PPD_READ[] PROGMEM = "ppd_read";
 static constexpr char CFG_KEY_SDS_READ[] PROGMEM = "sds_read";
 static constexpr char CFG_KEY_GC_READ[] PROGMEM = "gc_read";
@@ -182,6 +184,7 @@ static constexpr ConfigShapeEntry configShape[] PROGMEM = {
 	{ Config_Type_Bool, 0, CFG_KEY_WWW_BASICAUTH_ENABLED, &cfg::www_basicauth_enabled },
 	{ Config_Type_Bool, 0, CFG_KEY_DHT_READ, &cfg::dht_read },
 	{ Config_Type_Bool, 0, CFG_KEY_HTU21D_READ, &cfg::htu21d_read },
+	{ Config_Type_Bool, 0, CFG_KEY_DBMETER_READ, &cfg::dbmeter_read },
 	{ Config_Type_Bool, 0, CFG_KEY_PPD_READ, &cfg::ppd_read },
 	{ Config_Type_Bool, 0, CFG_KEY_SDS_READ, &cfg::sds_read },
 	{ Config_Type_Bool, 0, CFG_KEY_GC_READ, &cfg::gc_read },

airrohr-firmware/airrohr-cfg.h.py

@@ -12,6 +12,7 @@
 Bool		www_basicauth_enabled
 Bool		dht_read
 Bool		htu21d_read
+Bool		dbmeter_read
 Bool		ppd_read
 Bool		sds_read
 Bool        gc_read

airrohr-firmware/airrohr-firmware.ino

@@ -114,6 +114,7 @@ String SOFTWARE_VERSION(SOFTWARE_VERSION_STR);
 #include "./bmx280_i2c.h"
 #include "./sps30_i2c.h"
 #include "./dnms_i2c.h"
+#include "./dbmeter_regs.h"
 
 #include "./intl.h"
 
@@ -162,6 +163,7 @@ namespace cfg {
 	// (in)active sensors
 	bool dht_read = DHT_READ;
 	bool htu21d_read = HTU21D_READ;
+	bool dbmeter_read = DBMETER_READ;
 	bool ppd_read = PPD_READ;
 	bool sds_read = SDS_READ;
 	bool gc_read = GC_READ;
@@ -258,6 +260,7 @@ LoggerConfig loggerConfigs[LoggerCount];
 
 long int sample_count = 0;
 bool htu21d_init_failed = false;
+bool dbmeter_init_failed = false;
 bool bmp_init_failed = false;
 bool bmx280_init_failed = false;
 bool sht3x_init_failed = false;
@@ -412,6 +415,8 @@ float last_value_HTU21D_H = -1.0;
 float last_value_SHT3X_T = -128.0;
 float last_value_SHT3X_H = -1.0;
 
+uint8_t last_value_DBMETER = 0;
+
 uint32_t sds_pm10_sum = 0;
 uint32_t sds_pm25_sum = 0;
 uint32_t sds_val_count = 0;
@@ -629,6 +634,21 @@ static void initSensorCCS811() {
 	}
 }
 
+/*****************************************************************
+ * init DB Meter sensor                                            *
+ *****************************************************************/
+
+static void initDBMeter() {
+	// Read version register
+	uint8_t version = dbmeter_readreg(DBM_REG_VERSION);
+	if (version != 255) {
+		debug_outln_info(F("DB Meter version = "), String(version));
+	} else {
+		debug_outln_info(F("Check DB Meter wiring..."));
+		dbmeter_init_failed = true;
+	}
+}
+
 /*****************************************************************
  * read SDS011 sensor serial and firmware date                   *
  *****************************************************************/
@@ -1340,6 +1360,7 @@ static void webserver_config_send_body_get(String& page_content) {
 
 	add_form_checkbox_sensor(Config_dht_read, FPSTR(INTL_DHT22));
 	add_form_checkbox_sensor(Config_htu21d_read, FPSTR(INTL_HTU21D));
+	add_form_checkbox_sensor(Config_dbmeter_read, FPSTR(INTL_DBMETER));
 	add_form_checkbox_sensor(Config_bmx280_read, FPSTR(INTL_BMX280));
 	add_form_checkbox_sensor(Config_sht3x_read, FPSTR(INTL_SHT3X));
 
@@ -1726,6 +1747,10 @@ static void webserver_values() {
 		add_table_h_value(FPSTR(SENSORS_HTU21D), FPSTR(INTL_HUMIDITY), last_value_HTU21D_H);
 		page_content += FPSTR(EMPTY_ROW);
 	}
+	if (cfg::dbmeter_read) {
+		add_table_t_value(FPSTR(SENSORS_DBMETER), FPSTR(INTL_TEMPERATURE), last_value_DBMETER);
+		page_content += FPSTR(EMPTY_ROW);
+	}
 	if (cfg::bmp_read) {
 		add_table_t_value(FPSTR(SENSORS_BMP180), FPSTR(INTL_TEMPERATURE), last_value_BMP_T);
 		add_table_value(FPSTR(SENSORS_BMP180), FPSTR(INTL_PRESSURE), check_display_value(last_value_BMP_P / 100.0f, (-1 / 100.0f), 2, 0), unit_P);
@@ -2270,6 +2295,7 @@ static void wifiConfig() {
 	debug_outln_info_bool(F("DHT: "), cfg::dht_read);
 	debug_outln_info_bool(F("DS18B20: "), cfg::ds18b20_read);
 	debug_outln_info_bool(F("HTU21D: "), cfg::htu21d_read);
+	debug_outln_info_bool(F("DBMETER: "), cfg::dbmeter_read);
 	debug_outln_info_bool(F("BMP: "), cfg::bmp_read);
 	debug_outln_info_bool(F("DNMS: "), cfg::dnms_read);
 	debug_outln_info_bool(F("CCS811: "), cfg::ccs811_read);
@@ -2713,6 +2739,34 @@ static void fetchSensorHTU21D(String& s) {
 	debug_outln_verbose(FPSTR(DBG_TXT_END_READING), FPSTR(SENSORS_HTU21D));
 }
 
+/*****************************************************************
+ * read DB meter sensor values                                     *
+ *****************************************************************/
+static void fetchSensorDBMeter(String& s) {
+	debug_outln_verbose(FPSTR(DBG_TXT_START_READING), FPSTR(SENSORS_DBMETER));
+	Wire.setClock(10000);
+	uint8_t db = dbmeter_readreg(DBM_REG_DECIBEL);
+	if (db == 255) {
+		last_value_DBMETER = 0;
+		debug_outln_error(F("DB Meter read failed"));
+	} else {
+		last_value_DBMETER = db;
+		add_Value2Json(s, F("DB_Meter"), FPSTR(DBG_TXT_DECIBEL), last_value_DBMETER);
+	}
+	Wire.setClock(100000);
+	debug_outln_info(FPSTR(DBG_TXT_SEP));
+	debug_outln_verbose(FPSTR(DBG_TXT_END_READING), FPSTR(SENSORS_DBMETER));
+}
+
+uint8_t dbmeter_readreg (uint8_t regaddr) {
+	Wire.beginTransmission(DBM_ADDR);
+	Wire.write(regaddr);
+	Wire.endTransmission();
+	Wire.requestFrom(DBM_ADDR, 1);
+	delay(10);
+	return Wire.read();
+}
+
 /*****************************************************************
  * read BMP180 sensor values                                     *
  *****************************************************************/
@@ -4486,6 +4540,11 @@ static void powerOnTestSensors() {
 		}
 	}
 
+	if (cfg::dbmeter_read) {
+		debug_outln_info(F("Read DB Meter..."));
+		initDBMeter();
+	}
+
 	if (cfg::bmp_read) {
 		debug_outln_info(F("Read BMP..."));
 		if (!bmp.begin()) {

airrohr-firmware/dbmeter_regs.h

@@ -0,0 +1,21 @@
+// I2C address for the module
+#define DBM_ADDR                0x48
+
+// Device registers
+#define   DBM_REG_VERSION       0x00
+#define   DBM_REG_ID3           0x01
+#define   DBM_REG_ID2           0x02
+#define   DBM_REG_ID1           0x03
+#define   DBM_REG_ID0           0x04
+#define   DBM_REG_SCRATCH       0x05
+#define   DBM_REG_CONTROL       0x06
+#define   DBM_REG_TAVG_HIGH     0x07
+#define   DBM_REG_TAVG_LOW      0x08
+#define   DBM_REG_RESET         0x09
+#define   DBM_REG_DECIBEL       0x0A
+#define   DBM_REG_MIN           0x0B
+#define   DBM_REG_MAX           0x0C
+#define   DBM_REG_THR_MIN       0x0D
+#define   DBM_REG_THR_MAX       0x0E
+#define   DBM_REG_HISTORY_0     0x14
+#define   DBM_REG_HISTORY_99    0x77

airrohr-firmware/ext_def.h

@@ -249,6 +249,9 @@ static const char MEASUREMENT_NAME_INFLUX[] PROGMEM = "feinstaub";
 // Geiger Counter
 #define GC_READ 0
 
+// Becibel Meter
+#define DBMETER_READ 1
+
 // SDS011, the more expensive version of the particle sensor
 #define SDS_READ 1
 #define SDS_API_PIN 1

airrohr-firmware/html-content.h

@@ -6,6 +6,7 @@ const char TXT_CONTENT_TYPE_TEXT_PLAIN[] PROGMEM = "text/plain";
 const char TXT_CONTENT_TYPE_IMAGE_PNG[] PROGMEM = "image/png";
 
 const char DBG_TXT_TEMPERATURE[] PROGMEM = "Temperature (°C): ";
+const char DBG_TXT_DECIBEL[] PROGMEM = "Noise Level (DB): ";
 const char DBG_TXT_HUMIDITY[] PROGMEM = "Humidity (%): ";
 const char DBG_TXT_PRESSURE[] PROGMEM = "Pressure (hPa): ";
 const char DBG_TXT_START_READING[] PROGMEM = "R/ ";
@@ -34,6 +35,7 @@ const char SENSORS_SPS30[] PROGMEM = "Sensirion SPS30";
 const char SENSORS_DHT22[] PROGMEM = "DHT22";
 const char SENSORS_DS18B20[] PROGMEM = "DS18B20";
 const char SENSORS_HTU21D[] PROGMEM = "HTU21D";
+const char SENSORS_DBMETER[] PROGMEM = "Decibel Meter";
 const char SENSORS_SHT3X[] PROGMEM = "SHT3x";
 const char SENSORS_BMP180[] PROGMEM = "BMP180";
 const char SENSORS_BME280[] PROGMEM = "BME280";

airrohr-firmware/intl_en.h

@@ -22,6 +22,7 @@ const char INTL_SENSORS[] PROGMEM = "Sensors";
 const char INTL_MORE_SENSORS[] PROGMEM = "More Sensors";
 const char INTL_SDS011[] PROGMEM = "SDS011 ({pm})";
 const char INTL_GC[] PROGMEM = "Geiger counter";
+const char INTL_DBMETER[] PROGMEM = "Noise Level Sensor, (DB)";
 const char INTL_PMS[] PROGMEM = "Plantower PMS(1,3,5,6,7)003 ({pm})";
 const char INTL_HPM[] PROGMEM = "Honeywell PM ({pm})";
 const char INTL_NPM[] PROGMEM = "Tera Sensor Next PM ({pm})";

airrohr-firmware/intl_ru.h

@@ -22,6 +22,7 @@ const char INTL_SENSORS[] PROGMEM = "Датчики";
 const char INTL_MORE_SENSORS[] PROGMEM = "Больше датчиков";
 const char INTL_SDS011[] PROGMEM = "SDS011 ({pm})";
 const char INTL_GC[] PROGMEM = "Счетчик Гейгера ({cpm})";
+const char INTL_DBMETER[] PROGMEM = "Датчик уровня шума, (дб)";
 const char INTL_PMS[] PROGMEM = "Plantower PMS(1,3,5,6,7)003 ({pm})";
 const char INTL_HPM[] PROGMEM = "Honeywell PM ({pm})";
 const char INTL_NPM[] PROGMEM = "Tera Sensor Next PM ({pm})";

airrohr-firmware/platformio.ini

@@ -43,17 +43,19 @@ board_build.f_cpu = 160000000L
 ;   (like OneWire, LiquidCrystal_I2C and TinyGPSPlus)
 
 lib_deps_external =
-  1@2.3.5 ; OneWire
-  576@1.1.4 ; LiquidCrystal_I2C
-  Adafruit BMP085 Library@1.0.1
-  Adafruit HTU21DF Library@1.0.2
-  Adafruit SHT31 Library@1.1.6
-  bblanchon/ArduinoJson@6.16.1
-  milesburton/DallasTemperature@3.8.0
-  ESP8266_SSD1306@4.1.0
-  1655@1.0.2 ; TinyGPSPlus, formerly this was referenced as mikalhart/TinyGPSPlus#v0.95
+  paulstoffregen/OneWire@2.3.7
+  marcoschwartz/LiquidCrystal_I2C@1.1.4
+  adafruit/Adafruit BMP085 Library@1.0.1
+  adafruit/Adafruit HTU21DF Library@1.0.5
+  https://github.com/adafruit/Adafruit_SHT31.git#1.2.0
+  milesburton/DallasTemperature@3.9.1
+  sparkfun/SparkFun SCD30 Arduino Library @ ^1.0.13
+  bblanchon/ArduinoJson@6.18.3
+  ThingPulse/ESP8266 and ESP32 OLED driver for SSD1306 displays @ ^4.2.1
+  mikalhart/TinyGPSPlus@1.0.2
   climateguard/ClimateGuard RadSens@^1.1.1
   sparkfun/SparkFun CCS811 Arduino Library@^2.0.3
+  arduino-libraries/ArduinoHttpClient@^0.6.0
 
 ; system libraries from platform -> no version number
 lib_deps_esp8266_platform =