Nh3 support

README.md

@@ -52,6 +52,8 @@ NOTE: Panasonic via UART in ESP8266 maybe needs select in detection
 | BMP280      | i2c |  Auto | TESTING |
 | BME680      | i2c |  Auto | STABLE |
 | DHTxx       | TwoWire |  Auto | DISABLED |
+| DfRobot SEN0469 NH3  | --- | Yes | Auto | TESTING |
+| DFRobot SEN0466 CO | --- | Yes | Auto | TESTING |
 
 NOTE: DHT22 is supported but is not recommended. Please see the documentation.
 

examples/DfRobot_Multigas/dfr_multigas.ino

@@ -0,0 +1,55 @@
+/**
+ * @file main.cpp
+ * @date June 2018 - 2021
+ * @brief Particle meter sensor tests
+ * @license GPL3
+ * 
+ * Full documentation:
+ * https://github.com/kike-canaries/canairio_sensorlib#canairio-air-quality-sensors-library
+ * 
+ * Full implementation for WiFi and Bluetooth Air Quality fixed and mobile station:
+ * https://github.com/kike-canaries/canairio_firmware#canairio-firmware
+ * 
+ * CanAirIO project:
+ * https://canair.io
+ */
+
+#include <Arduino.h>
+
+#include <Sensors.hpp>
+
+void onSensorDataOk() {
+    Serial.println("-->[MAIN] NH3: " + String(sensors.getNH3()));
+    Serial.println("-->[MAIN] CO: " + String(sensors.getCO()));
+}
+
+void onSensorDataError(const char* msg) {
+    Serial.println(msg);
+}
+
+/******************************************************************************
+*  M A I N
+******************************************************************************/
+
+void setup() {
+    Serial.begin(115200);
+    delay(200);
+    Serial.println("\n== Sensor test setup ==\n");
+
+    Serial.println("-->[SETUP] Detecting sensors..");
+
+    sensors.setSampleTime(5);                        // config sensors sample time interval
+    sensors.setOnDataCallBack(&onSensorDataOk);      // all data read callback
+    sensors.setOnErrorCallBack(&onSensorDataError);  // [optional] error callback
+    sensors.setDebugMode(false);                     // [optional] debug mode
+    sensors.detectI2COnly(true);                     // force to only i2c sensors
+
+    sensors.init(SENSORS::SDFRCO);                         // detect CO sensor
+    sensors.init(SENSORS::SDFRNH3);                        // detect NH3 sensor
+
+    delay(500);
+}
+
+void loop() {
+    sensors.loop();  // read sensor data and showed it
+}

src/Sensors.hpp

@@ -124,8 +124,8 @@ typedef enum UNIT : size_t { SENSOR_UNITS } UNIT;
     X(SAHTXX, "AHTXX", 3)   \
     X(SAM232X, "AM232X", 3) \
     X(SDHTX, "DHTX", 3)     \
-    X(SDFRCO, "DFRCO", 2) \
-    X(SDFRNH3, "DFRNH3", 2) \
+    X(SDFRCO, "DFRCO", 3) \
+    X(SDFRNH3, "DFRNH3", 3) \
     X(SCOUNT, "SCOUNT", 3)
 
 #define X(utype, uname, umaintype) utype,