implement uv sensor ML8511
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@ -41,6 +41,10 @@ build_flags =
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-D HS1101PIN=D5
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-D dataHS1101_minchange=2
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-D SENSOR_ML8511
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-D ML8511PIN=A0
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-D dataML8511_minchange=0.05
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lib_deps =
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Adafruit BMP085 Library@1.1.0
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https://github.com/adafruit/Adafruit_TCS34725
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76
src/main.cpp
76
src/main.cpp
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@ -72,6 +72,14 @@ struct sensordata
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float value_lightBH1750=0;
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#endif
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#ifdef SENSOR_ML8511
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//ML8511 UV Sensor outputs an analog voltage. ML8511PIN needs to be an ADC pin
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sensordata dataML8511;
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float getUV_ML8511(int pin);
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float mapfloat(float x, float in_min, float in_max, float out_min, float out_max);
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float value_uvML8511=0;
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#endif
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#ifdef SENSOR_PIR
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// PIR Sensors HC-SR501 (modified to put out shortest pulse time short pins 5 and 6 of ic)
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@ -248,6 +256,14 @@ void setup() {
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#endif
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#endif
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#ifdef SENSOR_ML8511
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Serial.println("initializing ml8511");
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pinMode(ML8511PIN, INPUT);
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#ifdef dataML8511_minchange
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dataML8511.minchange=dataML8511_minchange;
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#endif
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#endif
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#ifdef SENSOR_PIR
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Serial.println("initializing pir");
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@ -353,6 +369,11 @@ void setup() {
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lightMeter.readLightLevel(); //make first reading, could be 0
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#endif
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#ifdef SENSOR_ML8511
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sensorNode.advertise("uv");
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analogRead(ML8511PIN); //first read adc. just to avoid problems
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#endif
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#ifdef SENSOR_LDR
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sensorNode.advertise("light");
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analogRead(LDR_PIN); //first reading could be false
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@ -584,6 +605,36 @@ void loop_BH1750()
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}
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#endif
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#ifdef SENSOR_ML8511
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void loop_ML8511()
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{
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sensordata &d=dataML8511;
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bool _changed=false;
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if (millis() >= (d.lastreadtime+d.readdelay)) {
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Serial.print("analogRead="); Serial.println(analogRead(ML8511PIN));
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value_uvML8511 = getUV_ML8511(ML8511PIN); //uvIntensity (mW/cm^2)
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if (fabs(d.lastsentvalue-value_uvML8511)>=d.minchange){
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_changed=true;
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}
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d.lastreadtime=millis();
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}
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if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
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Serial.print("Sending uv ML8511. reason=");
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if (_changed) Serial.println("change"); else Serial.println("time");
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checkESPStatus();
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Homie.getLogger() << "uv " << ": " << value_uvML8511 << endl;
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sensorNode.setProperty("uv").send(String(value_uvML8511));
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d.lastsentvalue=value_uvML8511;
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d.lastsent=millis();
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}
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}
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#endif
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#ifdef SENSOR_LDR
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void loop_LDR()
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{
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@ -840,6 +891,10 @@ void loopHandler() {
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}
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#endif
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#ifdef SENSOR_ML8511
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loop_ML8511();
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#endif
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#ifdef SENSOR_LDR
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loop_LDR();
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#endif
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@ -1014,8 +1069,21 @@ float getHumidity_HS1101(int pin) {
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return -1;
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}
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}
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#endif
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#ifdef SENSOR_ML8511
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float getUV_ML8511(int pin) {
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float uvadc = 3.06 / 1023 * analogRead(pin) ; //assumes 1023 = 3.069V (10-bit adc on esp8266)
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return max(mapfloat(uvadc, 0.99, 2.8, 0.0, 15.0), 0.0F); //uvIntensity (mW/cm^2)
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}
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#endif
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/*##################################
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* ######## HELPER FUNCTIONS ########
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*/
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//quelle: https://groups.google.com/forum/#!topic/souliss/1kMAltPB2ME[1-25]
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int get_mapped(const unsigned int* _in, const unsigned int* _out, byte size,int val) //map with constrain
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{
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@ -1035,4 +1103,10 @@ int get_mapped(const unsigned int* _in, const unsigned int* _out, byte size,int
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// interpolate in the right segment for the rest
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return map(val, _in[pos-1], _in[pos], _out[pos-1], _out[pos]);
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}
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#endif
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//The Arduino Map function but for floats
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//From: http://forum.arduino.cc/index.php?topic=3922.0
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float mapfloat(float x, float in_min, float in_max, float out_min, float out_max)
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{
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return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
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}
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