NH3 + CO DFRobot Multigas

platformio.ini

@@ -15,9 +15,6 @@ monitor_speed = 115200
 monitor_filters = time
 build_flags =
     -D CORE_DEBUG_LEVEL=0
-		; -D DHT11_ENABLED=1   // Deprecated, please change this old sensor
-		; -D DHT_SENSOR_TYPE=2
-		; -D DHT_SENSOR_PIN=19
 lib_deps = ${commonlibs.lib_deps}
 
 [common]

src/Sensors.cpp

@@ -75,11 +75,11 @@ bool Sensors::readAllSensors() {
     bmp280Read();
     bme680Read();
     aht10Read();
-
+    DFRobotGravityRead();
     #ifdef DHT11_ENABLED
     dhtRead();
     #endif
-
+  
     disableWire1();
 
     printValues();
@@ -125,7 +125,8 @@ void Sensors::init(u_int pms_type, int pms_rx, int pms_tx) {
     am2320Init();
     sht31Init();
     aht10Init();
-
+    DFRobotgravityInit();
+
     #ifdef DHT11_ENABLED
     dhtInit();
     #endif
@@ -535,8 +536,12 @@ float Sensors::getUnitValue(UNIT unit) {
             return pres;
         case ALT:
             return alt;
-        case GAS:
-            return gas;
+       // case GAS:
+        //    return gas;
+        case DFRobot_GAS::NH3:
+            return NH3;
+        case DFRobot_GAS::CO:
+            return CO;
         default:
             return 0.0;
     }
@@ -970,6 +975,26 @@ void Sensors::GCJA5Read() {
     unitRegister(UNIT::PM10);
 }
 
+
+void Sensors::DFRobotGravityRead() {
+     String gastype = gas.queryGasType();
+  /**
+   *Fill in the parameter readGasConcentration() with the type of gas to be obtained and print
+   *The current gas concentration
+   *Print with 1s delay each time
+   */
+  Serial.print("Ambient ");
+  Serial.print(gastype);
+  Serial.print(" concentration is: ");
+  Serial.print(gas.readGasConcentrationPPM());
+  if (gastype == "O2")
+    Serial.println(" %vol");
+  else
+    Serial.println(" PPM");
+  Serial.println();
+}
+
+
 #ifdef DHT11_ENABLED
 DHT_nonblocking dht_sensor(DHT_SENSOR_PIN, DHT_SENSOR_TYPE);
 /**
@@ -1546,6 +1571,30 @@ void Sensors::GCJA5Init() {
     sensorRegister(SENSORS::SGCJA5);
 }
 
+
+
+void Sensors::DFRobotgravityInit() {
+    sensorAnnounce(SENSORS::MULTIGAS);
+     DFRobot_GAS_I2C gas(&Wire ,0x77);
+      while(!gas.begin())
+  {
+    Serial.println("NO Deivces !");
+    delay(1000);
+  }
+  Serial.println("The device is connected successfully!");
+
+  //Mode of obtaining data: the main controller needs to request the sensor for data
+  gas.changeAcquireMode(gas.PASSIVITY);
+  delay(1000);
+
+  /**
+   *Turn on temperature compensation: gas.ON : turn on
+   *             gas.OFF：turn off
+   */
+  gas.setTempCompensation(gas.ON);
+    sensorRegister(SENSORS::MULTIGAS);
+}
+
 // Altitude compensation for CO2 sensors without Pressure atm or Altitude compensation
 
 void Sensors::CO2correctionAlt() {
@@ -1590,6 +1639,8 @@ void Sensors::resetAllVariables() {
     alt = 0.0;
     gas = 0.0;
     pres = 0.0;
+    NH3 = 0.0;
+    CO = 0.0;
 }
 
 void Sensors::DEBUG(const char *text, const char *textb) {

src/Sensors.hpp

@@ -16,6 +16,7 @@
 #include <s8_uart.h>
 #include <sps30.h>
 #include <drivers/pm1006.h>
+#include <drivers/DFRobot_MultiGasSensor.h>
 
 #ifdef DHT11_ENABLED
 #include <dht_nonblocking.h> 
@@ -95,9 +96,12 @@
     X(CO2HUM, "%", "CO2H")     \
     X(PRESS, "hPa", "P")       \
     X(ALT, "m", "Alt")         \
-    X(GAS, "Ohm", "Gas")       \
+    X(NH3, "ppm", "NH3")       \
+    X(CO, "ppm", "CO")         \
     X(UCOUNT, "COUNT", "UCOUNT")
 
+     // X(GAS, "Ohm", "Gas")       \           // COlisiona con DFRobot Multigas
+
 #define X(unit, symbol, name) unit,
 typedef enum UNIT : size_t { SENSOR_UNITS } UNIT;
 #undef X
@@ -120,6 +124,7 @@ typedef enum UNIT : size_t { SENSOR_UNITS } UNIT;
     X(SAHTXX, "AHTXX", 3)   \
     X(SAM232X, "AM232X", 3) \
     X(SDHTX, "DHTX", 3)     \
+    X(SMULTIGAS, "MULTIGAS", 2) \
     X(SCOUNT, "SCOUNT", 3)
 
 #define X(utype, uname, umaintype) utype,
@@ -204,9 +209,12 @@ class Sensors {
     // SCD4x sensor
     SensirionI2CScd4x scd4x;
 
-    // IKA Vindriktn sensor
+    // IKEA Vindriktn sensor
     PM1006 *pm1006;
 
+    // DFRobot gravity Gas sensor
+    DFRobot_GAS_I2C gas;
+
     void init(u_int pms_type = 0, int pms_rx = PMS_RX, int pms_tx = PMS_TX);
 
     void loop();
@@ -249,14 +257,18 @@ class Sensors {
 
     float getAltitude();
 
-    float getGas();
+    // float getGas();    // Posible colision con DFRobot Multigas
+
+    float getNH3();
+
+    float getCO();
 
     void setTempOffset(float offset);
 
     void setCO2AltitudeOffset(float altitude);
 
     void setSeaLevelPressure(float hpa);
-
+    
     void setCO2RecalibrationFactor(int ppmValue);
 
     void detectI2COnly(bool enable);
@@ -333,12 +345,17 @@ class Sensors {
     float temp = 0.0;  // Temperature (°C)
     float pres = 0.0;  // Pressure
     float alt = 0.0;
-    float gas = 0.0;
-
+   // float gas = 0.0;   // Colisiona con DFRobot Multigas
+    
     uint16_t CO2Val;      // CO2 in ppm
     float CO2humi = 0.0;  // humidity of CO2 sensor
     float CO2temp = 0.0;  // temperature of CO2 sensor
 
+    uint16_t NH3;         // Amonium in ppm
+    uint16_t CO;          // Carbon monoxide
+    float NH3 = 0.0;
+    float CO = 0.0;
+
     void am2320Init();
     void am2320Read();
 
@@ -378,6 +395,9 @@ class Sensors {
     bool dhtIsReady(float *temperature, float *humidity);
     #endif
 
+    void DFRobotgravityInit();
+    void DFRobotGravityRead();
+
     // UART sensors methods:
 
     bool sensorSerialInit(u_int pms_type, int rx, int tx);