hendrik
/
esp32-weatherstation
1
0
Fork 0
Code Issues 4 Pull Requests Releases Wiki Activity
Browse Source

add bme680

ir
Hendrik Langer 5 years ago
parent
c2a2c4e7df
commit
1c61a25d2c
2 changed files with 88 additions and 26 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  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", 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");
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);
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(bme280.readTemperature());
display.println(" *C");
display.print("Luftfeuchte: ");
display.print(bme280.readHumidity());
display.println(" %");
display.print("Luftdruck:");
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(bme.readTemperature());
display.print(bme680.readTemperature());
display.println(" *C");
display.print("Luftfeuchte: ");
display.print(bme.readHumidity());
display.print(bme680.readHumidity());
display.println(" %");
display.print("Luftdruck: ");
display.print(bme.readPressure() / 100.0F);
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;

Write Preview
Loading…
Cancel
Save