ADC pin reading (#106)

* ADC pin reading

#95

* arduino and always flag correction

* optimize sram use and remove adc sensor option per default

* integrate a threshold

OpenMQTTGateway.ino

@@ -134,21 +134,21 @@ void setup()
     ArduinoOTA.setPassword(ota_password);
 
     ArduinoOTA.onStart([]() {
-      Serial.println("Start");
+      trc(F("Start"));
     });
     ArduinoOTA.onEnd([]() {
-      Serial.println("\nEnd");
+      trc(F("\nEnd"));
     });
     ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
       Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
     });
     ArduinoOTA.onError([](ota_error_t error) {
       Serial.printf("Error[%u]: ", error);
-      if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");
+      if (error == OTA_AUTH_ERROR) trc(F("Auth Failed"));
-      else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");
+      else if (error == OTA_BEGIN_ERROR) trc(F("Begin Failed"));
-      else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");
+      else if (error == OTA_CONNECT_ERROR) trc(F("Connect Failed"));
-      else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");
+      else if (error == OTA_RECEIVE_ERROR) trc(F("Receive Failed"));
-      else if (error == OTA_END_ERROR) Serial.println("End Failed");
+      else if (error == OTA_END_ERROR) trc(F("End Failed"));
     });
     ArduinoOTA.begin();
   #else
@@ -247,6 +247,9 @@ void loop()
     #ifdef ZsensorDHT
       MeasureTempAndHum(); //Addon to measure the temperature with a DHT
     #endif
+    #ifdef ZsensorADC
+      MeasureADC(); //Addon to measure the analog value of analog pin
+    #endif
     // Receive loop, if data received by RF433 or IR send it by MQTT
     #ifdef ZgatewayRF
       boolean resultRF = RFtoMQTT();

User_config.h

@@ -74,6 +74,8 @@ const byte subnet[] = { 255, 255, 255, 0 }; //ip adress
   #include "config_IR.h"
   #define ZgatewayBT
   #include "config_BT.h"
+  #define ZsensorADC
+  #include "config_ADC.h"
   #define ZsensorBH1750
   #include "config_BH1750.h"
   #define ZsensorBME280
@@ -98,6 +100,8 @@ const byte subnet[] = { 255, 255, 255, 0 }; //ip adress
   //#include "config_BH1750.h"
   //#define ZsensorBME280
   //#include "config_BME280.h"
+  //#define ZsensorADC
+  //#include "config_ADC.h"
   //#define ZgatewayRFM69 not tested
   //#include "config_RFM69.h"  
 #endif

ZsensorADC.ino

@@ -0,0 +1,59 @@
+/*  
+  OpenMQTTGateway Addon  - ESP8266 or Arduino program for home automation 
+
+   Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal  and a MQTT broker 
+   Send and receiving command by MQTT
+ 
+    Analog pin reading Addon
+  
+    Copyright: (c)Florian ROBERT
+    
+    Contributors:
+    - 1technophile
+  
+    This file is part of OpenMQTTGateway.
+    
+    OpenMQTTGateway is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenMQTTGateway is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifdef ZsensorADC
+
+#ifdef ESP8266
+  ADC_MODE(ADC_TOUT);
+#endif
+
+//Time used to wait for an interval before resending adc value
+unsigned long timeadc = 0;
+
+void MeasureADC(){
+  if (millis() > (timeadc + TimeBetweenReadingADC)) {//retriving value of temperature and humidity of the box from DHT every xUL
+    timeadc = millis();
+    static int persistedadc;
+    int val = analogRead(ADC_PIN);
+ 
+    if (isnan(val)) {
+      trc(F("Failed to read from ADC !"));
+    }else{
+      if(val  >= persistedadc + ThresholdReadingADC || val  <= persistedadc - ThresholdReadingADC){
+        char value[4];
+        sprintf(value, "%d", val);
+        trc(F("Sending analog value to MQTT"));
+        trc(String(val));
+        client.publish(ADC,value);
+        persistedadc = val;
+       }
+    }
+  }
+}
+#endif
+

config_ADC.h

@@ -0,0 +1,37 @@
+/*  
+  OpenMQTTGateway  - ESP8266 or Arduino program for home automation 
+
+   Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal  and a MQTT broker 
+   Send and receiving command by MQTT
+ 
+   This files enables to set your parameter for the ADC value
+  
+    Copyright: (c)Florian ROBERT
+  
+    This file is part of OpenMQTTGateway.
+    
+    OpenMQTTGateway is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenMQTTGateway is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*----------------------------USER PARAMETERS-----------------------------*/
+/*-------------DEFINE YOUR MQTT PARAMETERS BELOW----------------*/
+#define ADC   "home/ADCtoMQTT"
+#define TimeBetweenReadingADC 0 // time between 2 ADC readings, can be 0 if you want only the threshold to trigger sending
+#define ThresholdReadingADC 50  //  following the comparison between the previous value and the current one +- the threshold the value will be published or not
+
+/*-------------------PIN DEFINITIONS----------------------*/
+#define ADC_PIN A0 //on nodeMCU this is D3 GPIO0
+
+
+