Aktiviere DHT22

This commit is contained in:
Markus_be 2021-02-13 16:49:05 +01:00
parent 38f29d371e
commit 402dbd6ba0
4 changed files with 79 additions and 0 deletions

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@ -28,3 +28,18 @@
// Anzahl der angeschlossenen LEDs am Ring
#define NUMPIXELS 8
// ######## DHT Temperatur Sensor ########
// Kommentiere enable_DHT aus um das laden zu deaktivieren
#define enable_DHT
// Pins für Temperatursensor DHT22
#define DHT_PIN 18
// DHT22 Typ
#define DHT_TYPE DHT22
//#define DHT_TYPE DHT11 // DHT 11
//#define DHT_TYPE DHT22 // DHT 22 (AM2302), AM2321
//#define DHT_TYPE DHT21 // DHT 21 (AM2301)
// DHT Sensor Wartezeit zwischen messungen
unsigned long sampletime_ms = 10000; // 10 Sekunden

50
include/dht_sensor.h Normal file
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@ -0,0 +1,50 @@
#include "DHT.h"
#ifndef DHT_PIN
#define DHT_PIN 18
#endif
#ifndef DHT_TYPE
#define DHT_TYPE DHT22
#endif
String dht_s_temperature;
String dht_s_humidity;
String dht_s_hic;
DHT dht(DHT_PIN, DHT_TYPE);
String Float2String(float value)
{
// Convert a float to String with two decimals.
String s;
s = String(int(value));
s += '.';
s += int((value - int(value)) * 100);
return s;
}
void sensorDHT(){
String data;
float h = dht.readHumidity();
float t = dht.readTemperature();
// check if Not a Number
if (isnan(t) || isnan(h)) {
Serial.println("DHT Sensordaten konnten nicht gelesen werden");
} else {
//false = Celcius | true = Farenheit
float hic = dht.computeHeatIndex(t, h, false);
dht_s_temperature=Float2String(t);
dht_s_humidity=Float2String(h);
dht_s_hic=Float2String(hic);
Serial.print("Luftfeuchte: ");
Serial.print(dht_s_humidity);
Serial.print(" %\n");
Serial.print("Temperatur: ");
Serial.print(dht_s_temperature);
Serial.print(" °C\n");
Serial.print("Gefühlte Temperatur: ");
Serial.print(dht_s_hic);
Serial.print(" °C\n");
}
}

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@ -17,5 +17,7 @@ lib_deps =
squix78/ESP8266 and ESP32 OLED driver for SSD1306 displays @^4.2.0
yiannisbourkelis/Uptime Library @ ^1.0.0
wifwaf/MH-Z19@^1.5.3
adafruit/DHT sensor library@^1.4.1
adafruit/Adafruit Unified Sensor@^1.1.4
monitor_speed = 115200
upload_speed = 921600

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@ -7,6 +7,9 @@
#include <Preferences.h>
#include "uptime_formatter.h"
#ifdef enable_DHT
#include "dht_sensor.h"
long lastMsg = 0;
#endif
@ -85,6 +88,10 @@ void setup() {
Serial.println("Starte...");
Serial.print("CO2-Ampel Firmware: ");Serial.println(ampelversion);
#ifdef enable_DHT
dht.begin();
#endif
// Ab hier Bootmodus initialisieren und festlegen
preferences.begin("co2", false);
currentBootMode = preferences.getUInt("cal", BOOT_UNKNOWN); // Aktuellen Boot-Mode lesen und speichern
@ -309,5 +316,10 @@ void loop() {
if(currentBootMode == BOOT_NORMAL) { set_led_color(co2); }
}
}
long now = millis();
if (now - lastMsg > sampletime_ms) {
lastMsg = now;
sensorDHT(); // Temperatur, gefühlte Temperatur und Luftfeuchte
}
}