95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
#include <SPI.h>
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#include <Wire.h>
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#include <Adafruit_Sensor.h>
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#include <Adafruit_BMP280.h>
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#ifndef SEALEVELPRESSURE_HPA
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#define SEALEVELPRESSURE_HPA (1013.25f)
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#endif
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// Richen 219 m über NN
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// Eppingem 195 m über NN
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Adafruit_BMP280 bmp; // I2C
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bool F_BMP280;
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struct {
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char temperature[15] = {0};
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char pressure[15] = {0};
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char approx_altitud[15] = {0};
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char humity[15] = {0};
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} BMP280Data;
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void Init_BMP280(){
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bool status = bmp.begin(0x76);
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F_BMP280 = true;
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if (!status) {
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Serial.println("BMP280 not connected!");
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F_BMP280 = false;
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SystemStatus = SystemStatus | BMP280noReady;
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Serial.print("SensorID was: 0x"); Serial.println(bmp.sensorID(),16);
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delay(5000);
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} else{
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/* Default settings from datasheet. */
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bmp.setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */
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Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */
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Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */
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Adafruit_BMP280::FILTER_X16, /* Filtering. */
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Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */
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//bmp_temp->printSensorDetails();
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Serial.println("BMP280 gefunden");
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}
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}
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void read_BMP_280() {
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Serial.print("Temperature (BMP280):\t");
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float t = bmp.readTemperature();
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t = t + KorrekturTemperatur;
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dtostrf(t,7,1,BMP280Data.temperature);
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Serial.print(BMP280Data.temperature);
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Serial.println(" °C");
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Serial.print("Pressure:\t\t");
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float p = bmp.readPressure() / 100.0F;
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p = p + KorrekturLuftdruck;
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dtostrf(p,7,1,BMP280Data.pressure);
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Serial.print(BMP280Data.pressure);
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Serial.println(" hPa");
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Serial.print("Approx. Altitude:\t");
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float a = bmp.readAltitude(SEALEVELPRESSURE_HPA);
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dtostrf(a,7,1,BMP280Data.approx_altitud);
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Serial.print(BMP280Data.approx_altitud);
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Serial.println(" m über NN");
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Serial.println();
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}
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void M2M_BMP280(String deviceId = "4711") {
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char topic[100];
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/temperature_BMP_280" );
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client.publish(topic, BMP280Data.temperature, true);
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/pressure" );
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client.publish(topic, BMP280Data.pressure, true);
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/approx_altitude" );
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client.publish(topic, BMP280Data.approx_altitud);
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}
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void Clear_BMP280(String deviceId = "4711"){
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char topic[100];
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char test[1] = "";
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/temperature_BMP_280" );
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client.publish(topic,test, false);
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delay(10);
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/approx_altitude" );
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client.publish(topic,test, false);
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delay(10);
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/pressure" );
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client.publish(topic,test, false);
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delay(10);
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} |