50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#include <Wire.h>
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#include <Adafruit_Sensor.h>
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#include <Adafruit_I2CDevice.h>
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#include <Adafruit_HTU21DF.h>
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Adafruit_HTU21DF htu = Adafruit_HTU21DF();
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bool F_HTU_21D;
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float K_HTU= -0.00;
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struct {
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char temperature[15] = {0};
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char humity[15] = {0};
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} htuData;
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void init_HTU21(){
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F_HTU_21D = false;
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if (!htu.begin()) {
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Serial.println("Couldn't find sensor HUT21D!");
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SystemStatus = SystemStatus | HTU21noReady;
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}
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F_HTU_21D = true;
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Serial.println("HUT21D gefunden");
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}
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void read_HTU21D() {
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float t = htu.readTemperature();
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t = t + K_HTU;
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dtostrf(t,7,1,htuData.temperature);
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float h = htu.readHumidity();
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dtostrf(h,7,1,htuData.humity);
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Serial.print("Temperature (HTU21D):\t");
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Serial.print(htuData.temperature);
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Serial.println(" °C");
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Serial.print("Luftfeuchtigkeit:\t");
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Serial.print(htuData.humity);
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Serial.println(" %");
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}
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void M2M_HTU21D(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_Htu_21" );
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client.publish(topic, htuData.temperature, true);
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sprintf(topic, "%s%s%s", "hjk/devices/", deviceId.c_str(), "/telemetry/humity" );
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client.publish(topic, htuData.humity, true);
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/* Serial.printf("HTU21:\t\t %s °C\n", htuData.temperature);
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Serial.printf("HTU21:\t\t %s %%\n", htuData.humity); */
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} |