From bdff41a4b0db1012c39d2999bfa207814a69b0b6 Mon Sep 17 00:00:00 2001
From: biver <batata@mail.ru>
Date: Thu, 11 May 2023 15:51:41 +0300
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D1=8F?=
 =?UTF-8?q?=D0=B5=D0=BC=20=D0=BC=D0=BE=D0=B4=D1=83=D0=BB=D1=8C=20S8?=
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---
 src/modules/sensors/S8/S8.cpp       | 95 +++++++++++++++++++++++++++++
 src/modules/sensors/S8/modinfo.json | 43 +++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 src/modules/sensors/S8/S8.cpp
 create mode 100644 src/modules/sensors/S8/modinfo.json

diff --git a/src/modules/sensors/S8/S8.cpp b/src/modules/sensors/S8/S8.cpp
new file mode 100644
index 00000000..f8efa10e
--- /dev/null
+++ b/src/modules/sensors/S8/S8.cpp
@@ -0,0 +1,95 @@
+#include "Global.h"
+#include "Classes/IoTItem.h"
+
+#include <SoftwareSerial.h>
+
+#define R_LEN 7
+#define C_LEN 8
+
+byte cmd_s8[8]        = {0xFE, 0x04, 0x00, 0x03, 0x00, 0x01, 0xD5, 0xC5};
+//byte abc_s8[8]        = {0xFE, 0x03, 0x00, 0x1F, 0x00, 0x01, 0xA1, 0xC3};
+
+
+class S8co : public IoTItem {
+  private:
+    SoftwareSerial* s8Serial;
+
+    unsigned int _s8_co2;
+    int _s8_co2_mean = 0;
+    int _s8_co2_mean2 = 0;
+
+    float smoothing_factor = 0.5;
+    float smoothing_factor2 = 0.15;
+
+    byte _response_s8[7]   = {0, 0, 0, 0, 0, 0, 0};
+
+    void s8Request(byte cmd[]) {
+      while(!s8Serial->available()) {
+        s8Serial->write(cmd, C_LEN); 
+        delay(50); 
+      }
+      
+      int timeout=0;
+      while(s8Serial->available() < R_LEN) {
+        timeout++; 
+        if(timeout > 10) {
+          while(s8Serial->available()) {
+            s8Serial->read();
+            break;
+          }
+        } 
+        delay(50); 
+      } 
+      
+      for (int i=0; i < R_LEN; i++) { 
+        _response_s8[i] = s8Serial->read(); 
+      }
+      
+      s8Serial->end();
+    }                     
+
+    void co2_measure() {
+      s8Request(cmd_s8);    // запрашиваем значение загрязнения
+      _s8_co2 = _response_s8[3] * 256 + _response_s8[4];   // полученный недобайт-ответ преобразуем в значение загрязнения
+      
+      if (!_s8_co2_mean) _s8_co2_mean = _s8_co2;
+      _s8_co2_mean = _s8_co2_mean - smoothing_factor*(_s8_co2_mean - _s8_co2);
+      
+      if (!_s8_co2_mean2) _s8_co2_mean2 = _s8_co2;
+      _s8_co2_mean2 = _s8_co2_mean2 - smoothing_factor2*(_s8_co2_mean2 - _s8_co2);
+
+      Serial.printf("CO2 value: %d, M1Value: %d, M2Value: %d\n", _s8_co2, _s8_co2_mean, _s8_co2_mean2);
+    }
+
+  public:
+    S8co(String parameters): IoTItem(parameters) { 
+      int S8_RX_PIN, S8_TX_PIN;
+      jsonRead(parameters, "rxPin", S8_RX_PIN);
+      jsonRead(parameters, "txPin", S8_TX_PIN);
+
+      s8Serial = new SoftwareSerial(S8_RX_PIN, S8_TX_PIN);
+      if (!s8Serial) return;
+      s8Serial->begin(9600);
+    }
+    
+    void doByInterval() {
+      co2_measure();
+      value.valD = _s8_co2;
+      if (value.valD < 15000)
+        regEvent(value.valD, "S8co");
+      else
+        SerialPrint("E", "Sensor S8_uart", "Error");
+    } 
+
+    ~S8co() {
+      if (s8Serial) delete s8Serial;
+    };
+};
+
+void* getAPI_S8(String subtype, String param) {
+  if (subtype == F("S8co")) {
+    return new S8co(param);
+  } else {
+    return nullptr;
+  }
+}
diff --git a/src/modules/sensors/S8/modinfo.json b/src/modules/sensors/S8/modinfo.json
new file mode 100644
index 00000000..6f702b87
--- /dev/null
+++ b/src/modules/sensors/S8/modinfo.json
@@ -0,0 +1,43 @@
+{
+    "menuSection": "Сенсоры",
+    "configItem": [
+        {
+         "name": "(S8) Cенсор качества воздуха",
+         "num": 3,
+         "type": "Reading",
+         "subtype": "S8co",
+         "id": "s8co",
+         "widget": "anydataPpm",
+         "page": "Сенсоры",
+         "descr": "S8_CO2",
+         "int": 15,
+         "round": 1,
+		 "rxPin": 13,
+         "txPin": 15
+        }
+    ],
+    "about": {
+        "authorName": "Serghei Crasnicov",
+        "authorContact": "https://t.me/Serghei63",
+        "authorGit": "https://github.com/Serghei63",
+        "specialThanks": "",
+        "moduleName": "S8",
+        "moduleVersion": "2.1",
+        "usedRam": 15,
+        "subTypes": [
+            "S8co"
+        ],
+        "title": "Датчик углекислого газа S8",
+        "moduleDesc": "Измеряет параметвы воздуха.",
+        "propInfo": {
+            "int": "Количество секунд между опросами датчика."
+        }
+    },
+    "defActive": true,
+    "usedLibs": {
+        "esp32_4mb": [
+                    ],
+        "esp8266_4mb": [
+                   ]
+    }
+}
\ No newline at end of file