Acs712

data_svelte/widgets.json

@@ -209,6 +209,13 @@
         ],
         "status": 0
     },
+    {
+        "name": "anydataPpm",
+        "label": "PPM",
+        "widget": "anydata",
+        "after": "ppm",
+        "icon": "speedometer"
+    },
     {
         "name": "nil",
         "label": "Без виджета"

src/modules/sensors/Acs712/Acs712.cpp

@@ -0,0 +1,76 @@
+#include "Global.h"
+#include "classes/IoTItem.h"
+
+extern IoTGpio IoTgpio;
+
+class Acs712 : public IoTItem
+{
+private:
+    unsigned int _pin;
+    const unsigned long _sampleTime = 100000UL;                      // sample over 100ms, it is an exact number of cycles for both 50Hz and 60Hz mains
+    const unsigned long _numSamples = 250UL;                         // choose the number of samples to divide sampleTime exactly, but low enough for the ADC to keep up
+    const unsigned long _sampleInterval = _sampleTime / _numSamples; // the sampling interval, must be longer than then ADC conversion time
+    int _adc_zero1; //Переменная автоматической калибровки
+
+public:
+
+    Acs712(String parameters) : IoTItem(parameters)
+    {
+        String tmp;
+        jsonRead(parameters, "pin", tmp);
+        _pin = tmp.toInt();
+        _adc_zero1 = determineVQ(_pin); 
+    }
+    
+    void doByInterval()
+    {
+       
+            unsigned long currentAcc = 0;
+            unsigned int count = 0;
+            unsigned long prevMicros = micros() - _sampleInterval;
+            while (count < _numSamples)
+            {
+                if (micros() - prevMicros >= _sampleInterval)
+                {
+                    int adc_raw = IoTgpio.analogRead(_pin) - _adc_zero1;
+                    currentAcc += (unsigned long)(adc_raw * adc_raw);
+                    ++count;
+                    prevMicros += _sampleInterval;
+                }
+            }
+            #ifdef ESP32
+            value.valD = int(sqrt((float)currentAcc / (float)_numSamples) * (75.7576 / 4095.0));
+            #else
+            value.valD = int(sqrt((float)currentAcc / (float)_numSamples) * (75.7576 / 1023.0));
+            #endif
+            regEvent(value.valD, "Acs712");
+    }
+  
+    int determineVQ(int PIN)
+    {
+        long VQ = 0;
+        // read 5000 samples to stabilise value
+        for (int i = 0; i < 5000; i++)
+        {
+            VQ += IoTgpio.analogRead(PIN);
+            //delay(1); // depends on sampling (on filter capacitor), can be 1/80000 (80kHz) max.
+        }
+        VQ /= 5000;
+        return int(VQ);
+    }
+
+    
+    ~Acs712(){};
+};
+
+void *getAPI_Acs712(String subtype, String param)
+{
+    if (subtype == F("Acs712"))
+    {
+        return new Acs712(param);
+    }
+    else
+    {
+        return nullptr;
+    }
+}

src/modules/sensors/Acs712/modinfo.json

@@ -0,0 +1,41 @@
+{   
+    "menuSection": "Сенсоры",
+
+    "configItem": [{
+        "name": "Аналоговый датчик тока Acs712",
+        "type": "Reading",
+        "subtype": "Acs712",
+        "id": "amp",
+        "widget": "anydataAmp",
+        "page": "Сенсоры",
+        "descr": "Ток",
+        "round": 3,
+        "pin": 39,
+        "int": 5
+    }],
+    
+    "about": {
+        "authorName": "Yuriy Kuneev",
+        "authorContact": "https://t.me/Kuneev07",
+        "authorGit": "",
+        "exampleURL": "https://iotmanager.org/wiki",
+        "specialThanks": "",
+        "moduleName": "Acs712",
+        "moduleVersion": "1.0",
+        "moduleDesc": "Позволяет получить текущее значение тока на аналоговом пине с помощью модуля Acs712.",
+        "propInfo": {
+            "pin": "Аналоговый GPIO номер, к которому подключен датчик.",
+            "int": "Количество секунд между опросами датчика."
+        }
+    },
+
+    
+
+    "defActive": true,
+
+    "devices": {
+        "esp32_4mb": [],
+        "esp8266_4mb": []
+    }
+}
+