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esp32-weatherstation
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add bme680

ir
Hendrik Langer 5 years ago
parent
c2a2c4e7df
commit
1c61a25d2c
2 changed files with 88 additions and 26 deletions
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  1. 1
      platformio.ini
  2. 111
      src/main.cpp

1
platformio.ini
View File

@ -36,6 +36,7 @@ lib_deps =
; https://github.com/wemos/LOLIN_EPD_Library
Adafruit GFX Library
Adafruit BME280 Library
Adafruit BME680 Library
Adafruit Unified Sensor
Adafruit BusIO
Adafruit VEML6075 Library

111
src/main.cpp
View File

@ -20,6 +20,7 @@
#include <Adafruit_Sensor.h>
#include "Adafruit_BME280.h"
#include "Adafruit_BME680.h"
#include "Adafruit_VEML6075.h"
@ -39,7 +40,8 @@ static const char* TAG = "MAIN";
WiFiMulti wifiMulti;
GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=SS*/ TFT_CS, /*DC=*/ TFT_DC, /*RST=*/ TFT_RST, /*BUSY=*/ -1)); // GDEH0213B72
Adafruit_BME280 bme; // I2C (also available: hardware SPI
Adafruit_BME280 bme280; // I2C (also available: hardware SPI
Adafruit_BME680 bme680; // I2C (also available: hardware SPI
//HardwareSerial Serial2(2);
SdsDustSensor sds(Serial2);
Adafruit_VEML6075 uv = Adafruit_VEML6075();
@ -48,7 +50,8 @@ XD0OTA ota("esp32-weatherstation");
XD0MQTT mqtt;
uint32_t lastDisplayUpdate = 0;
bool bme_active = false;
bool bme280_active = false;
bool bme680_active = false;
bool uv_active = false;
bool sds_active = false;
@ -102,23 +105,45 @@ void getTime(char* ptr, size_t maxsize, const char* format) {
void printValues() {
if (bme_active) {
if (bme280_active) {
#define SEALEVELPRESSURE_HPA (1013.25)
Serial.print("Temperature = ");
Serial.print(bme.readTemperature());
Serial.print(bme280.readTemperature());
Serial.println(" *C");
Serial.print("Pressure = ");
Serial.print(bme.readPressure() / 100.0F);
Serial.print(bme280.readPressure() / 100.0F);
Serial.println(" hPa");
Serial.print("Approx. Altitude = ");
Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
Serial.print(bme280.readAltitude(SEALEVELPRESSURE_HPA));
Serial.println(" m");
Serial.print("Humidity = ");
Serial.print(bme.readHumidity());
Serial.print(bme280.readHumidity());
Serial.println(" %");
Serial.println();
}
if (bme680_active) {
#define SEALEVELPRESSURE_HPA (1013.25)
Serial.print("Temperature = ");
Serial.print(bme680.readTemperature());
Serial.println(" *C");
Serial.print("Pressure = ");
Serial.print(bme680.readPressure() / 100.0F);
Serial.println(" hPa");
Serial.print("Approx. Altitude = ");
Serial.print(bme680.readAltitude(SEALEVELPRESSURE_HPA));
Serial.println(" m");
Serial.print("Humidity = ");
Serial.print(bme680.readHumidity());
Serial.println(" %");
Serial.println();
@ -150,16 +175,30 @@ void printValues() {
void sendValues() {
/* send values MQTT */
if (bme_active) {
if (bme280_active) {
String topic_temperature = String("thomas/sensor/") + ota.getMAC() + String("/temperature");
String topic_humidity = String("thomas/sensor/") + ota.getMAC() + String("/humidity");
String topic_pressure = String("thomas/sensor/") + ota.getMAC() + String("/pressure");
char temperature[8]; sprintf(temperature, "%.2f", bme.readTemperature());
char humidity[7]; sprintf(humidity, "%.2f", bme.readHumidity());
char pressure[8]; sprintf(pressure, "%.2f", bme.readPressure() / 100.0F);
char temperature[8]; sprintf(temperature, "%.2f", bme280.readTemperature());
char humidity[7]; sprintf(humidity, "%.2f", bme280.readHumidity());
char pressure[8]; sprintf(pressure, "%.2f", bme280.readPressure() / 100.0F);
mqtt.publish(topic_temperature.c_str(), temperature, strlen(temperature));
mqtt.publish(topic_humidity.c_str(), humidity, strlen(humidity));
mqtt.publish(topic_pressure.c_str(), pressure, strlen(pressure));
} else if (bme680_active) {
bme680.performReading();
String topic_temperature = String("thomas/sensor/") + ota.getMAC() + String("/temperature");
String topic_humidity = String("thomas/sensor/") + ota.getMAC() + String("/humidity");
String topic_pressure = String("thomas/sensor/") + ota.getMAC() + String("/pressure");
String topic_voc = String("thomas/sensor/") + ota.getMAC() + String("/voc");
char temperature[8]; sprintf(temperature, "%.2f", bme680.readTemperature());
char humidity[7]; sprintf(humidity, "%.2f", bme680.readHumidity());
char pressure[8]; sprintf(pressure, "%.2f", bme680.readPressure() / 100.0F);
char voc[12]; sprintf(voc, "%.2f", bme680.gas_resistance / 1000.0F);
mqtt.publish(topic_temperature.c_str(), temperature, strlen(temperature));
mqtt.publish(topic_humidity.c_str(), humidity, strlen(humidity));
mqtt.publish(topic_pressure.c_str(), pressure, strlen(pressure));
mqtt.publish(topic_voc.c_str(), voc, strlen(voc));
} else {
String topic_temperature = String("thomas/sensor/") + ota.getMAC() + String("/temperature");
float esp32_temperature = (temprature_sens_read() - 32) / 1.8;
@ -220,19 +259,25 @@ void setup()
#define BME_SDA 21
#define BME_SCL 22
Wire.begin(BME_SDA, BME_SCL);
if (bme.begin()) {
bme_active = true;
if (bme280.begin()) {
bme280_active = true;
} else {
ESP_LOGE(TAG, "Could not find a valid BME280 sensor, check wiring!");
}
/*
if (bme680.begin()) {
bme680_active = true;
} else {
ESP_LOGE(TAG, "Could not find a valid BME680 sensor, check wiring!");
}
if (bme680_active) {
// Set up oversampling and filter initialization
bme.setTemperatureOversampling(BME680_OS_8X);
bme.setHumidityOversampling(BME680_OS_2X);
bme.setPressureOversampling(BME680_OS_4X);
bme.setIIRFilterSize(BME680_FILTER_SIZE_3);
bme.setGasHeater(320, 150); // 320*C for 150 ms
*/
bme680.setTemperatureOversampling(BME680_OS_8X);
bme680.setHumidityOversampling(BME680_OS_2X);
bme680.setPressureOversampling(BME680_OS_4X);
bme680.setIIRFilterSize(BME680_FILTER_SIZE_3);
bme680.setGasHeater(320, 150); // 320*C for 150 ms
}
if (uv.begin()) {
uv_active = true;
@ -307,22 +352,38 @@ void loop()
{
display.fillScreen(GxEPD_WHITE);
display.setTextColor(GxEPD_BLACK);
display.setFont(&FreeSans9pt7b);
display.setTextWrap(false);
display.setCursor(0, 11);
display.setFont(&FreeSans9pt7b);
display.println("ESP32-Wetterstation");
display.drawFastHLine(0, 14, display.width(), GxEPD_BLACK);
display.setCursor(0, 32);
if (bme_active) {
if (bme280_active) {
display.print("Temperatur: ");
display.print(bme.readTemperature());
display.print(bme280.readTemperature());
display.println(" *C");
display.print("Luftfeuchte: ");
display.print(bme.readHumidity());
display.print(bme280.readHumidity());
display.println(" %");
display.print("Luftdruck:");
display.print(bme.readPressure() / 100.0F);
display.print(bme280.readPressure() / 100.0F);
display.println(" hPa");
} else if (bme680_active) {
if (! bme680.performReading()) {
Serial.println("Failed to perform reading :(");
}
display.print("Temperatur: ");
display.print(bme680.readTemperature());
display.println(" *C");
display.print("Luftfeuchte: ");
display.print(bme680.readHumidity());
display.println(" %");
display.print("Luftdruck: ");
display.print(bme680.readPressure() / 100.0F);
display.println(" hPa");
display.print("Gas: ");
display.print(bme680.gas_resistance / 1000.0);
display.println(" KOhms");
} else {
display.print("Temperatur: ");
float esp32_temperature = (temprature_sens_read() - 32) / 1.8;

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