add SDS011 and geiger counter

README.md

@@ -9,7 +9,7 @@ NodeMCU v0.9
             RSV     3V3 - BMP_VCC
             RSV     GND - BMP_GND
             GND      D5
-            3V3      D6
+            3V3      D6 - GEIGER_VIN
             GND      D7 - DHT_DATA
             3V3      D8
              EN      RX
@@ -31,3 +31,8 @@ DHT22
  DATA -> D7
       ->
   GND -> GND
+
+RadiationD
+ GND -> GND
+  5V -> 5V
+ VIN -> D6

platformio.ini

@@ -14,5 +14,8 @@ board = nodemcuv2
 framework = arduino
 
 lib_deps =
+  ArduinoJson
   Adafruit BMP085 Library
   DHT sensor library
+;  SDS011 sensor Library
+  https://github.com/Zanop/SDS011.git#more-sensor-modes

src/main.cpp

@@ -7,12 +7,17 @@
 #include <Arduino.h>
 #include <ESP8266WiFi.h>
 
+#include <ESP8266HTTPClient.h>
+#include <ArduinoJson.h>
+
 #include <Wire.h>
 #include <SPI.h>
 #include <Adafruit_Sensor.h>
 #include <Adafruit_BMP085_U.h>
 #include <DHT.h>
 
+#include <SDS011.h>
+
 const char* server = "ingress.opensensemap.org";
 const char* ssid = "Freifunk";
 const char* password = "";
@@ -37,6 +42,8 @@ constexpr unsigned int postingInterval = 60000; //Uploadintervall in Millisekund
 #define SENSOR6_ID "5a9e9e38f55bff001a494879"
 // Voltage
 #define SENSOR7_ID "5a9e9e38f55bff001a494878"
+// RSSI
+#define SENSOR8_ID "5a9eddb1f55bff001a51de52"
 
 
 static constexpr uint8_t BMP_SCL = D4;
@@ -45,10 +52,22 @@ static constexpr uint8_t BMP_SDA = D3;
 static constexpr uint8_t DHT22_PIN = D7;
 static constexpr uint8_t DHTTYPE = DHT22; // DHT 22 (AM2302)
 
+static constexpr uint8_t SDS_TX = D1;
+static constexpr uint8_t SDS_RX = D2;
+
+static constexpr uint8_t GEIGER_PIN = D6;
+static constexpr float CONV_FACTOR = 0.008120;
+static constexpr unsigned long logging_period_ms = 60000;
+
+ADC_MODE(ADC_VCC);
+
 Adafruit_BMP085_Unified bmp = Adafruit_BMP085_Unified(10085);
 DHT dht(DHT22_PIN, DHTTYPE);
+SDS011 sds;
+volatile unsigned long geiger_counts = 0;
+unsigned long geiger_previousMillis;
 
-void sendValues() {
+void ICACHE_FLASH_ATTR sendValues() {
   WiFi.forceSleepWake();
   WiFi.begin(ssid, password);
   Serial.print("Connecting to wifi");
@@ -60,39 +79,125 @@ void sendValues() {
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
 
-  Wire.begin(BMP_SDA, BMP_SCL);
+  float temperature = dht.readTemperature();
-  if (!bmp.begin()) {
-    Serial.println("No valid BMP085 sensor!");
-  }
-
-  dht.begin();
-  
-  float temp = dht.readTemperature();
-//  float pressure = bme.readPressure() / 100.0F;
   float humidity = dht.readHumidity();
 
-  Serial.println(temp);
-  Serial.println(humidity);
-
   float pressure, temp2;
   bmp.getPressure(&pressure);
   pressure /= 100;
   bmp.getTemperature(&temp2);
-  Serial.println(temp2);
-  Serial.println(pressure);
 
-//     float temperature = sensor.readTemperature();
+  float p10, p2_5;
-//     postFloatValue(temperature, 1, temperatureSensorID);
+  int sds_error = sds.read(&p2_5, &p10);
+  if(!sds_error) {
+    Serial.println("SDS011 updated.");
+  } else {
+    Serial.println("SDS011 no new values.");
+  }
+
+//  sds.sleep();
+
+  unsigned long cpm = 0;
+  if (millis() - geiger_previousMillis > logging_period_ms) {
+    cpm = geiger_counts * 60000 / (millis() - geiger_previousMillis);
+    geiger_previousMillis = millis();
+    geiger_counts = 0;
+    Serial.println(cpm);
+  } else {
+    Serial.println("Geiger Counter: no new value");
+  }
+
+  DynamicJsonBuffer jsonBuffer;
+  JsonArray& array = jsonBuffer.createArray();
+
+  JsonObject& temperatureObject = array.createNestedObject();
+  temperatureObject["sensor"] = SENSOR1_ID;
+  temperatureObject["value"] = temperature;
+
+  JsonObject& humidityObject = array.createNestedObject();
+  humidityObject["sensor"] = SENSOR2_ID;
+  humidityObject["value"] = humidity;
+
+  JsonObject& pressureObject = array.createNestedObject();
+  pressureObject["sensor"] = SENSOR3_ID;
+  pressureObject["value"] = pressure;
+
+  if (!sds_error) {
+    JsonObject& pm10Object = array.createNestedObject();
+    pm10Object["sensor"] = SENSOR4_ID;
+    pm10Object["value"] = p10;
+
+    JsonObject& pm25Object = array.createNestedObject();
+    pm25Object["sensor"] = SENSOR5_ID;
+    pm25Object["value"] = p2_5;
+
+  }
+
+  if (cpm > 0) {
+    float radiationValue = cpm * CONV_FACTOR;
+    JsonObject& cpmObject = array.createNestedObject();
+    cpmObject["sensor"] = SENSOR6_ID;
+    cpmObject["value"] = radiationValue;
+  }
+
+  JsonObject& voltageObject = array.createNestedObject();
+  voltageObject["sensor"] = SENSOR7_ID;
+  voltageObject["value"] = ESP.getVcc()/1024.0;
+
+  JsonObject& rssiObject = array.createNestedObject();
+  rssiObject["sensor"] = SENSOR8_ID;
+  rssiObject["value"] = WiFi.RSSI();
+
+
+  char buffer[500];
+  array.printTo(buffer, sizeof(buffer));
+
+
+  HTTPClient httpclient;
+  char url[100];
+  sprintf(url, "http://%s/boxes/%s/data", server, SENSEBOX_ID);
+
+  httpclient.begin(url);
+  httpclient.addHeader("Content-Type", "application/json");
+
+  int httpCode = httpclient.POST(buffer);
+
+  if (httpCode > 0) {
+    if (httpCode == HTTP_CODE_CREATED) {
+      httpclient.writeToStream(&Serial);
+    } else {
+      Serial.printf("[HTTP] POST... failed, error: %s\n", httpclient.errorToString(httpCode).c_str());
+    }
+  }
 
+  httpclient.end();
+
+  WiFi.disconnect();
   WiFi.mode(WIFI_OFF);
   WiFi.forceSleepBegin();
 
 }
 
+void ICACHE_RAM_ATTR ISR_geiger_impulse() {
+  geiger_counts++;
+}
+
 
 void setup() {
   Serial.begin(115200);
-  pinMode(LED_BUILTIN, OUTPUT);
+
+  sds.begin(SDS_TX, SDS_RX);
+  sds.mode_mon_300();
+
+  Wire.begin(BMP_SDA, BMP_SCL);
+  if (!bmp.begin()) {
+    Serial.println("No valid BMP085 sensor!");
+  }
+
+  dht.begin();
+
+  pinMode(GEIGER_PIN, INPUT);
+  attachInterrupt(digitalPinToInterrupt(GEIGER_PIN), ISR_geiger_impulse, FALLING);
 }
 
 void loop() {