corrected values + bme
This commit is contained in:
GrafZ3pp3lin
parent
69895ad824
commit
cd756e5994
6 changed files with 151 additions and 389 deletions
266
lib/DHT/dht.cpp
266
lib/DHT/dht.cpp
|
|
@ -1,266 +0,0 @@
|
|||
//
|
||||
// FILE: dht.cpp
|
||||
// AUTHOR: Rob Tillaart
|
||||
// VERSION: 0.1.33
|
||||
// PURPOSE: DHT Temperature & Humidity Sensor library for Arduino, AVR optimized
|
||||
// URL: https://github.com/RobTillaart/DHTlib
|
||||
// http://arduino.cc/playground/Main/DHTLib
|
||||
//
|
||||
// HISTORY:
|
||||
// 0.1.33 2021-02-16 fix #6 T-GO signal in handshake. (needed for long wires)
|
||||
// 0.1.32 2021-02-01 fix negative temperature DHT22 again (code from DHTNew)
|
||||
// 0.1.31 2020-12-15 fix negative temperature DHT22 (code from DHTNew)
|
||||
// 0.1.30 2020-06-30 own repo;
|
||||
// 0.1.29 2018-09-02 fix negative temperature DHT12 - issue #111
|
||||
// 0.1.28 2018-04-03 refactor
|
||||
// 0.1.27 2018-03-26 added _disableIRQ flag
|
||||
// 0.1.26 2017-12-12 explicit support for AM23XX series and DHT12
|
||||
// 0.1.25 2017-09-20 FIX https://github.com/RobTillaart/Arduino/issues/80
|
||||
// 0.1.24 2017-07-27 FIX https://github.com/RobTillaart/Arduino/issues/33 double -> float
|
||||
// 0.1.23 2017-07-24 FIX https://github.com/RobTillaart/Arduino/issues/31
|
||||
// 0.1.22 undo delayMicroseconds() for wakeups larger than 8
|
||||
// 0.1.21 replace delay with delayMicroseconds() + small fix
|
||||
// 0.1.20 Reduce footprint by using uint8_t as error codes. (thanks to chaveiro)
|
||||
// 0.1.19 masking error for DHT11 - FIXED (thanks Richard for noticing)
|
||||
// 0.1.18 version 1.16/17 broke the DHT11 - FIXED
|
||||
// 0.1.17 replaced micros() with adaptive loopcount
|
||||
// removed DHTLIB_INVALID_VALUE
|
||||
// added DHTLIB_ERROR_CONNECT
|
||||
// added DHTLIB_ERROR_ACK_L DHTLIB_ERROR_ACK_H
|
||||
// 0.1.16 masking unused bits (less errors); refactored bits[]
|
||||
// 0.1.15 reduced # micros calls 2->1 in inner loop.
|
||||
// 0.1.14 replace digital read with faster (~3x) code => more robust low MHz machines.
|
||||
//
|
||||
// 0.1.13 fix negative temperature
|
||||
// 0.1.12 support DHT33 and DHT44 initial version
|
||||
// 0.1.11 renamed DHTLIB_TIMEOUT
|
||||
// 0.1.10 optimized faster WAKEUP + TIMEOUT
|
||||
// 0.1.09 optimize size: timeout check + use of mask
|
||||
// 0.1.08 added formula for timeout based upon clockspeed
|
||||
// 0.1.07 added support for DHT21
|
||||
// 0.1.06 minimize footprint (2012-12-27)
|
||||
// 0.1.05 fixed negative temperature bug (thanks to Roseman)
|
||||
// 0.1.04 improved readability of code using DHTLIB_OK in code
|
||||
// 0.1.03 added error values for temp and humidity when read failed
|
||||
// 0.1.02 added error codes
|
||||
// 0.1.01 added support for Arduino 1.0, fixed typos (31/12/2011)
|
||||
// 0.1.00 by Rob Tillaart (01/04/2011)
|
||||
//
|
||||
// inspired by DHT11 library
|
||||
|
||||
#include "dht.h"
|
||||
|
||||
/////////////////////////////////////////////////////
|
||||
//
|
||||
// PUBLIC
|
||||
//
|
||||
|
||||
int8_t dht::read11(uint8_t pin)
|
||||
{
|
||||
// READ VALUES
|
||||
if (_disableIRQ) noInterrupts();
|
||||
int8_t result = _readSensor(pin, DHTLIB_DHT11_WAKEUP, DHTLIB_DHT11_LEADING_ZEROS);
|
||||
if (_disableIRQ) interrupts();
|
||||
|
||||
// these bits are always zero, masking them reduces errors.
|
||||
bits[0] &= 0x7F;
|
||||
bits[2] &= 0x7F;
|
||||
|
||||
// CONVERT AND STORE
|
||||
humidity = bits[0]; // bits[1] == 0;
|
||||
temperature = bits[2]; // bits[3] == 0;
|
||||
|
||||
// TEST CHECKSUM
|
||||
uint8_t sum = bits[0] + bits[1] + bits[2] + bits[3];
|
||||
if (bits[4] != sum)
|
||||
{
|
||||
return DHTLIB_ERROR_CHECKSUM;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
int8_t dht::read12(uint8_t pin)
|
||||
{
|
||||
// READ VALUES
|
||||
if (_disableIRQ) noInterrupts();
|
||||
int8_t result = _readSensor(pin, DHTLIB_DHT11_WAKEUP, DHTLIB_DHT11_LEADING_ZEROS);
|
||||
if (_disableIRQ) interrupts();
|
||||
|
||||
// CONVERT AND STORE
|
||||
humidity = bits[0] + bits[1] * 0.1;
|
||||
temperature = bits[2] + (bits[3] & 0x7F) * 0.1;
|
||||
if (bits[3] & 0x80) // negative temperature
|
||||
{
|
||||
temperature = -temperature;
|
||||
}
|
||||
|
||||
// TEST CHECKSUM
|
||||
uint8_t sum = bits[0] + bits[1] + bits[2] + bits[3];
|
||||
if (bits[4] != sum)
|
||||
{
|
||||
return DHTLIB_ERROR_CHECKSUM;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
int8_t dht::read(uint8_t pin)
|
||||
{
|
||||
// READ VALUES
|
||||
if (_disableIRQ) noInterrupts();
|
||||
int8_t result = _readSensor(pin, DHTLIB_DHT_WAKEUP, DHTLIB_DHT_LEADING_ZEROS);
|
||||
if (_disableIRQ) interrupts();
|
||||
|
||||
// these bits are always zero, masking them reduces errors.
|
||||
bits[0] &= 0x03;
|
||||
bits[2] &= 0x83;
|
||||
|
||||
// CONVERT AND STORE
|
||||
humidity = (bits[0] * 256 + bits[1]) * 0.1;
|
||||
int16_t t = (bits[2] * 256 + bits[3]);
|
||||
temperature = t * 0.1;
|
||||
|
||||
// HEXDUMP DEBUG
|
||||
/*
|
||||
Serial.println();
|
||||
// CHECKSUM
|
||||
if (_bits[4] < 0x10) Serial.print(0);
|
||||
Serial.print(_bits[4], HEX);
|
||||
Serial.print(" ");
|
||||
// TEMPERATURE
|
||||
if (_bits[2] < 0x10) Serial.print(0);
|
||||
Serial.print(_bits[2], HEX);
|
||||
if (_bits[3] < 0x10) Serial.print(0);
|
||||
Serial.print(_bits[3], HEX);
|
||||
Serial.print(" ");
|
||||
Serial.print(temperature, 1);
|
||||
Serial.print(" ");
|
||||
// HUMIDITY
|
||||
if (_bits[0] < 0x10) Serial.print(0);
|
||||
Serial.print(_bits[0], HEX);
|
||||
if (_bits[1] < 0x10) Serial.print(0);
|
||||
Serial.print(_bits[1], HEX);
|
||||
Serial.print(" ");
|
||||
Serial.print(humidity, 1);
|
||||
*/
|
||||
|
||||
// TEST CHECKSUM
|
||||
uint8_t sum = bits[0] + bits[1] + bits[2] + bits[3];
|
||||
if (bits[4] != sum)
|
||||
{
|
||||
return DHTLIB_ERROR_CHECKSUM;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////
|
||||
//
|
||||
// PRIVATE
|
||||
//
|
||||
|
||||
int8_t dht::_readSensor(uint8_t pin, uint8_t wakeupDelay, uint8_t leadingZeroBits)
|
||||
{
|
||||
// INIT BUFFERVAR TO RECEIVE DATA
|
||||
uint8_t mask = 128;
|
||||
uint8_t idx = 0;
|
||||
|
||||
uint8_t data = 0;
|
||||
uint8_t state = LOW;
|
||||
uint8_t pstate = LOW;
|
||||
uint16_t zeroLoop = DHTLIB_TIMEOUT;
|
||||
uint16_t delta = 0;
|
||||
|
||||
leadingZeroBits = 40 - leadingZeroBits; // reverse counting...
|
||||
|
||||
// replace digitalRead() with Direct Port Reads.
|
||||
// reduces footprint ~100 bytes => portability issue?
|
||||
// direct port read is about 3x faster
|
||||
uint8_t bit = digitalPinToBitMask(pin);
|
||||
uint8_t port = digitalPinToPort(pin);
|
||||
volatile uint8_t *PIR = portInputRegister(port);
|
||||
|
||||
// REQUEST SAMPLE
|
||||
pinMode(pin, OUTPUT);
|
||||
digitalWrite(pin, LOW); // T-be
|
||||
if (wakeupDelay > 8) delay(wakeupDelay);
|
||||
else delayMicroseconds(wakeupDelay * 1000UL);
|
||||
digitalWrite(pin, HIGH); // T-go
|
||||
pinMode(pin, INPUT);
|
||||
|
||||
uint16_t loopCount = DHTLIB_TIMEOUT * 2; // 200uSec max
|
||||
// while(digitalRead(pin) == HIGH)
|
||||
while ((*PIR & bit) != LOW )
|
||||
{
|
||||
if (--loopCount == 0)
|
||||
{
|
||||
return DHTLIB_ERROR_CONNECT;
|
||||
}
|
||||
}
|
||||
|
||||
// GET ACKNOWLEDGE or TIMEOUT
|
||||
loopCount = DHTLIB_TIMEOUT;
|
||||
// while(digitalRead(pin) == LOW)
|
||||
while ((*PIR & bit) == LOW ) // T-rel
|
||||
{
|
||||
if (--loopCount == 0)
|
||||
{
|
||||
return DHTLIB_ERROR_ACK_L;
|
||||
}
|
||||
}
|
||||
|
||||
loopCount = DHTLIB_TIMEOUT;
|
||||
// while(digitalRead(pin) == HIGH)
|
||||
while ((*PIR & bit) != LOW ) // T-reh
|
||||
{
|
||||
if (--loopCount == 0)
|
||||
{
|
||||
return DHTLIB_ERROR_ACK_H;
|
||||
}
|
||||
}
|
||||
|
||||
loopCount = DHTLIB_TIMEOUT;
|
||||
|
||||
// READ THE OUTPUT - 40 BITS => 5 BYTES
|
||||
for (uint8_t i = 40; i != 0; )
|
||||
{
|
||||
// WAIT FOR FALLING EDGE
|
||||
state = (*PIR & bit);
|
||||
if (state == LOW && pstate != LOW)
|
||||
{
|
||||
if (i > leadingZeroBits) // DHT22 first 6 bits are all zero !! DHT11 only 1
|
||||
{
|
||||
zeroLoop = min(zeroLoop, loopCount);
|
||||
delta = (DHTLIB_TIMEOUT - zeroLoop)/4;
|
||||
}
|
||||
else if ( loopCount <= (zeroLoop - delta) ) // long -> one
|
||||
{
|
||||
data |= mask;
|
||||
}
|
||||
mask >>= 1;
|
||||
if (mask == 0) // next byte
|
||||
{
|
||||
mask = 128;
|
||||
bits[idx] = data;
|
||||
idx++;
|
||||
data = 0;
|
||||
}
|
||||
// next bit
|
||||
--i;
|
||||
|
||||
// reset timeout flag
|
||||
loopCount = DHTLIB_TIMEOUT;
|
||||
}
|
||||
pstate = state;
|
||||
// Check timeout
|
||||
if (--loopCount == 0)
|
||||
{
|
||||
return DHTLIB_ERROR_TIMEOUT;
|
||||
}
|
||||
|
||||
}
|
||||
// pinMode(pin, OUTPUT);
|
||||
// digitalWrite(pin, HIGH);
|
||||
return DHTLIB_OK;
|
||||
}
|
||||
//
|
||||
// END OF FILE
|
||||
//
|
||||
|
|
@ -1,91 +0,0 @@
|
|||
//
|
||||
// FILE: dht.h
|
||||
// AUTHOR: Rob Tillaart
|
||||
// VERSION: 0.1.33
|
||||
// PURPOSE: DHT Temperature & Humidity Sensor library for Arduino. AVR optimized
|
||||
// URL: https://github.com/RobTillaart/DHTlib
|
||||
// http://arduino.cc/playground/Main/DHTLib
|
||||
//
|
||||
// HISTORY:
|
||||
// see dht.cpp file
|
||||
//
|
||||
|
||||
#ifndef dht_h
|
||||
#define dht_h
|
||||
|
||||
#if ARDUINO < 100
|
||||
#include <WProgram.h>
|
||||
#include <pins_arduino.h> // fix for broken pre 1.0 version - TODO TEST
|
||||
#else
|
||||
#include <Arduino.h>
|
||||
#endif
|
||||
|
||||
|
||||
#define DHT_LIB_VERSION (F("0.1.33"))
|
||||
|
||||
#define DHTLIB_OK 0
|
||||
#define DHTLIB_ERROR_CHECKSUM -1
|
||||
#define DHTLIB_ERROR_TIMEOUT -2
|
||||
#define DHTLIB_ERROR_CONNECT -3
|
||||
#define DHTLIB_ERROR_ACK_L -4
|
||||
#define DHTLIB_ERROR_ACK_H -5
|
||||
|
||||
#define DHTLIB_DHT11_WAKEUP 18
|
||||
#define DHTLIB_DHT_WAKEUP 1
|
||||
|
||||
#define DHTLIB_DHT11_LEADING_ZEROS 1
|
||||
#define DHTLIB_DHT_LEADING_ZEROS 6
|
||||
|
||||
|
||||
// max timeout is 100 usec.
|
||||
// For a 16 Mhz proc 100 usec is 1600 clock cycles
|
||||
// loops using DHTLIB_TIMEOUT use at least 4 clock cycli
|
||||
// so 100 us takes max 400 loops
|
||||
// so by dividing F_CPU by 40000 we "fail" as fast as possible
|
||||
#ifndef F_CPU
|
||||
#define DHTLIB_TIMEOUT 1000 // ahould be approx. clock/40000
|
||||
#else
|
||||
#define DHTLIB_TIMEOUT (F_CPU/40000)
|
||||
#endif
|
||||
|
||||
|
||||
class dht
|
||||
{
|
||||
public:
|
||||
dht() { _disableIRQ = false; };
|
||||
// return values:
|
||||
// DHTLIB_OK
|
||||
// DHTLIB_ERROR_CHECKSUM
|
||||
// DHTLIB_ERROR_TIMEOUT
|
||||
// DHTLIB_ERROR_CONNECT
|
||||
// DHTLIB_ERROR_ACK_L
|
||||
// DHTLIB_ERROR_ACK_H
|
||||
int8_t read11(uint8_t pin);
|
||||
int8_t read(uint8_t pin);
|
||||
int8_t read12(uint8_t pin);
|
||||
|
||||
inline int8_t read21(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read22(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read33(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read44(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read2301(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read2302(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read2303(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read2320(uint8_t pin) { return read(pin); };
|
||||
inline int8_t read2322(uint8_t pin) { return read(pin); };
|
||||
|
||||
bool getDisableIRQ() { return _disableIRQ; };
|
||||
void setDisableIRQ(bool b ) { _disableIRQ = b; };
|
||||
|
||||
float humidity;
|
||||
float temperature;
|
||||
|
||||
private:
|
||||
uint8_t bits[5]; // buffer to receive data
|
||||
int8_t _readSensor(uint8_t pin, uint8_t wakeupDelay, uint8_t leadingZeroBits);
|
||||
bool _disableIRQ;
|
||||
};
|
||||
#endif
|
||||
//
|
||||
// END OF FILE
|
||||
//
|
||||
|
|
@ -9,6 +9,10 @@ double MQ135::getVoltage() {
|
|||
return (double)analogRead(pin) * VStep;
|
||||
}
|
||||
|
||||
double MQ135::getCorrectionFactor(float temparature, float humidity) {
|
||||
return (CorrA * pow(temparature, 3) + CorrB * pow(temparature, 2) - CorrC * temparature + CorrD - (CorrE * humidity - CorrE * 33));
|
||||
}
|
||||
|
||||
double MQ135::getResistance() {
|
||||
double voltage = getVoltage();
|
||||
double rs = ((VIn * RL) / voltage) - RL;
|
||||
|
|
@ -18,6 +22,10 @@ double MQ135::getResistance() {
|
|||
return rs;
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedResistance(float temparature, float humidity) {
|
||||
return getResistance() / getCorrectionFactor(temparature, humidity);
|
||||
}
|
||||
|
||||
double MQ135::getPPM(float a, float b) {
|
||||
double ratio = getResistance() / R0;
|
||||
double ppm = a * pow(ratio, b);
|
||||
|
|
@ -27,6 +35,15 @@ double MQ135::getPPM(float a, float b) {
|
|||
return ppm;
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedPPM(float a, float b, float temparature, float humidity) {
|
||||
double ratio = getCorrectedResistance(temparature, humidity) / R0;
|
||||
double ppm = a * pow(ratio, b);
|
||||
if (ppm < 0) {
|
||||
ppm = 0;
|
||||
}
|
||||
return ppm;
|
||||
}
|
||||
|
||||
double MQ135::getPPMLinear(float a, float b) {
|
||||
double ratio = getResistance() / R0;
|
||||
double ppm_log = (log10(ratio) - b) / a;
|
||||
|
|
@ -41,32 +58,61 @@ double MQ135::getAcetona() {
|
|||
return getPPM(34.668, -3.369);
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedAcetona(float temparature, float humidity) {
|
||||
return getCorrectedPPM(34.668, -3.369, temparature, humidity);
|
||||
}
|
||||
|
||||
double MQ135::getAlcohol() {
|
||||
return getPPM(77.255, -3.18);
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedAlcohol(float temparature, float humidity) {
|
||||
return getCorrectedPPM(77.255, -3.18, temparature, humidity);
|
||||
}
|
||||
|
||||
double MQ135::getCO2() {
|
||||
// return getPPMLinear(-0.3525, 0.7142) + ATMOCO2;
|
||||
return getPPM(110.47, -2.862) + ATMOCO2;
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedCO2(float temparature, float humidity) {
|
||||
return getCorrectedPPM(110.47, -2.862, temparature, humidity) + ATMOCO2;
|
||||
}
|
||||
|
||||
double MQ135::getCO() {
|
||||
return getPPM(605.18, -3.937);
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedCO(float temparature, float humidity) {
|
||||
return getCorrectedPPM(605.18, -3.937, temparature, humidity);
|
||||
}
|
||||
|
||||
double MQ135::getNH4() {
|
||||
return getPPM(102.2, -2.473);
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedNH4(float temparature, float humidity) {
|
||||
return getCorrectedPPM(102.2, -2.473, temparature, humidity);
|
||||
}
|
||||
|
||||
double MQ135::getTolueno() {
|
||||
return getPPM(44.947, -3.445);
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedTolueno(float temparature, float humidity) {
|
||||
return getCorrectedPPM(44.947, -3.445, temparature, humidity);
|
||||
}
|
||||
|
||||
float MQ135::getR0() {
|
||||
double r0 = getResistance() / 3.6;
|
||||
return r0;
|
||||
}
|
||||
|
||||
float MQ135::getCorrectedR0(float temparature, float humidity) {
|
||||
double r0 = getCorrectedResistance(temparature, humidity) / 3.6;
|
||||
return r0;
|
||||
}
|
||||
|
||||
double MQ135::getR0ByCO2Level(float ppm) {
|
||||
if (ppm > ATMOCO2) {
|
||||
ppm -= ATMOCO2;
|
||||
|
|
@ -78,6 +124,17 @@ double MQ135::getR0ByCO2Level(float ppm) {
|
|||
return pow(10, tmp);
|
||||
}
|
||||
|
||||
double MQ135::getCorrectedR0ByCO2Level(float ppm, float temparature, float humidity) {
|
||||
if (ppm > ATMOCO2) {
|
||||
ppm -= ATMOCO2;
|
||||
}
|
||||
else {
|
||||
return NAN;
|
||||
}
|
||||
double tmp = -(log10(ppm / 110.47) / -2.862) + log10(getCorrectedResistance(temparature, humidity));
|
||||
return pow(10, tmp);
|
||||
}
|
||||
|
||||
void MQ135::setR0(float r0) {
|
||||
R0 = r0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
#ifndef MQ135New_H
|
||||
#define MQ135New_H
|
||||
#ifndef MQ135_H
|
||||
#define MQ135_H
|
||||
|
||||
#include "Arduino.h"
|
||||
|
||||
|
|
@ -16,6 +16,13 @@
|
|||
/// CO2 Level in Atmosphere
|
||||
#define ATMOCO2 397.13
|
||||
|
||||
//Correction Values
|
||||
#define CorrA -0.000002469136
|
||||
#define CorrB 0.00048148148
|
||||
#define CorrC 0.0274074074
|
||||
#define CorrD 1.37530864197
|
||||
#define CorrE 0.0019230769
|
||||
|
||||
/// Helper to calculate Voltage from Input
|
||||
/// Voltage = input * Vin / (Resolution - 1)
|
||||
const double VStep = (double)VIn / (Resolution - 1);
|
||||
|
|
@ -33,34 +40,48 @@ class MQ135 {
|
|||
/// Get R0 in default conditions for calibration purposes.
|
||||
/// Assume CO2 Level is the default Atmospheric Level (~400ppm)
|
||||
float getR0();
|
||||
float getCorrectedR0(float temparature, float humidity);
|
||||
/// Get R0 in custom conditions for calibration purposes.
|
||||
/// Can be used, if you know the current CO2 Level.
|
||||
double getR0ByCO2Level(float ppm);
|
||||
double getCorrectedR0ByCO2Level(float ppm, float temparature, float humidity);
|
||||
/// Set R0 Value for calibration.
|
||||
void setR0(float r0);
|
||||
|
||||
|
||||
/// Gets the resolved sensor voltage
|
||||
double getVoltage();
|
||||
|
||||
/// Calculate Correction Factor depending on temparature and humidity
|
||||
double getCorrectionFactor(float temparature, float humidity);
|
||||
|
||||
/// Calculates the Resistance of the Sensor
|
||||
double getResistance();
|
||||
double getCorrectedResistance(float temparature, float humidity);
|
||||
/// Calculates ppm on a exponential curve
|
||||
/// (Different Gases have different curves)
|
||||
double getPPM(float a, float b);
|
||||
double getCorrectedPPM(float a, float b, float temparature, float humidity);
|
||||
/// Calculates ppm on a linear curve
|
||||
/// (Different Gases have different curves)
|
||||
double getPPMLinear(float a, float b);
|
||||
|
||||
/// Gets ppm of Acetona in Air (C3H6O)
|
||||
double getAcetona();
|
||||
double getCorrectedAcetona(float temparature, float humidity);
|
||||
/// Gets ppm of Alcohol in Air
|
||||
double getAlcohol();
|
||||
double getCorrectedAlcohol(float temparature, float humidity);
|
||||
/// Gets ppm of CO in Air
|
||||
double getCO();
|
||||
double getCorrectedCO(float temparature, float humidit);
|
||||
/// Gets ppm of CO2 in Air
|
||||
double getCO2();
|
||||
double getCorrectedCO2(float temparature, float humidit);
|
||||
/// Gets ppm of NH4 in Air
|
||||
double getNH4();
|
||||
double getCorrectedNH4(float temparature, float humidit);
|
||||
/// Gets ppm of Tolueno in Air (CH3)
|
||||
double getTolueno();
|
||||
double getCorrectedTolueno(float temparature, float humidit);
|
||||
};
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -8,10 +8,10 @@
|
|||
; Please visit documentation for the other options and examples
|
||||
; https://docs.platformio.org/page/projectconf.html
|
||||
|
||||
[env:mega]
|
||||
[env:arduino]
|
||||
platform = atmelavr
|
||||
board = megaatmega2560
|
||||
board = nanoatmega328new
|
||||
framework = arduino
|
||||
; lib_deps =
|
||||
; adafruit/Adafruit BME280 Library @ ^2.1.2
|
||||
lib_deps =
|
||||
adafruit/Adafruit BME280 Library @ ^2.1.2
|
||||
; miguel5612/MQUnifiedsensor @ ^2.0.1
|
||||
|
|
|
|||
91
src/main.cpp
91
src/main.cpp
|
|
@ -1,14 +1,17 @@
|
|||
#include <Arduino.h>
|
||||
#include <MQ135.h>
|
||||
#include <Adafruit_BME280.h>
|
||||
|
||||
#define PIN_MQ135 A0
|
||||
#define PIN_LED_GREEN DD2
|
||||
#define PIN_LED_YELLOW DD3
|
||||
#define PIN_LED_RED DD4
|
||||
#define PIN_NOISE DD5
|
||||
#define PIN_MQ135 A7
|
||||
#define PIN_NOISE 2
|
||||
#define PIN_LED_GREEN 3
|
||||
#define PIN_LED_GREEN2 4
|
||||
#define PIN_LED_YELLOW 5
|
||||
#define PIN_LED_YELLOW2 6
|
||||
#define PIN_LED_RED 7
|
||||
#define PIN_LED_RED2 8
|
||||
|
||||
#define MEASURE_DELAY 1000
|
||||
#define NOISE_DELAY 100
|
||||
void printValues();
|
||||
|
||||
const int maxCount = 10;
|
||||
int count = 0;
|
||||
|
|
@ -18,47 +21,85 @@ bool noiseActive = false;
|
|||
float ppm;
|
||||
|
||||
MQ135 co2_sensor(PIN_MQ135);
|
||||
Adafruit_BME280 bme;
|
||||
|
||||
void setup() {
|
||||
pinMode(PIN_LED_GREEN, OUTPUT);
|
||||
pinMode(PIN_LED_GREEN2, OUTPUT);
|
||||
pinMode(PIN_LED_YELLOW, OUTPUT);
|
||||
pinMode(PIN_LED_YELLOW2, OUTPUT);
|
||||
pinMode(PIN_LED_RED, OUTPUT);
|
||||
pinMode(PIN_LED_RED2, OUTPUT);
|
||||
pinMode(PIN_NOISE, OUTPUT);
|
||||
Serial.begin(9600);
|
||||
co2_sensor.setR0(100);
|
||||
}
|
||||
co2_sensor.setR0(300);
|
||||
|
||||
void printValues(float ppm, float temp, float humidity);
|
||||
if (!bme.begin(0x76)) {
|
||||
Serial.println(F("Could not find a valid BME280 sensor, check wiring!"));
|
||||
}
|
||||
}
|
||||
|
||||
void loop() {
|
||||
if (count >= maxCount || count < 0) {
|
||||
ppm = co2_sensor.getCO2();
|
||||
float temp = bme.readTemperature();
|
||||
float humidity = bme.readHumidity();
|
||||
ppm = co2_sensor.getCorrectedCO2(temp, humidity);
|
||||
|
||||
count = 0;
|
||||
noiseActive = false;
|
||||
digitalWrite(PIN_LED_GREEN, 0);
|
||||
digitalWrite(PIN_LED_GREEN2, 0);
|
||||
digitalWrite(PIN_LED_YELLOW, 0);
|
||||
digitalWrite(PIN_LED_YELLOW2, 0);
|
||||
digitalWrite(PIN_LED_RED, 0);
|
||||
digitalWrite(PIN_LED_RED2, 0);
|
||||
|
||||
if (ppm < 1000) {
|
||||
noiseActive = false;
|
||||
digitalWrite(PIN_LED_GREEN, 1);
|
||||
digitalWrite(PIN_LED_YELLOW, 0);
|
||||
digitalWrite(PIN_LED_RED, 0);
|
||||
if (ppm > 750) {
|
||||
digitalWrite(PIN_LED_GREEN2, 1);
|
||||
}
|
||||
}
|
||||
else if (ppm <= 2000) {
|
||||
noiseActive = false;
|
||||
digitalWrite(PIN_LED_GREEN, 0);
|
||||
if (ppm > 1000 && ppm <= 2000) {
|
||||
digitalWrite(PIN_LED_YELLOW, 1);
|
||||
digitalWrite(PIN_LED_RED, 0);
|
||||
if (ppm > 1500) {
|
||||
digitalWrite(PIN_LED_YELLOW2, 1);
|
||||
}
|
||||
}
|
||||
else {
|
||||
noiseActive = true;
|
||||
digitalWrite(PIN_LED_GREEN, 0);
|
||||
digitalWrite(PIN_LED_YELLOW, 0);
|
||||
if (ppm > 2000) {
|
||||
digitalWrite(PIN_LED_RED, 1);
|
||||
if (ppm > 2500) {
|
||||
noiseActive = true;
|
||||
digitalWrite(PIN_LED_RED2, 1);
|
||||
}
|
||||
}
|
||||
|
||||
printValues();
|
||||
}
|
||||
|
||||
if (noiseActive) {
|
||||
noise = !noise;
|
||||
digitalWrite(PIN_NOISE, noise);
|
||||
// digitalWrite(PIN_NOISE, noise);
|
||||
}
|
||||
else {
|
||||
digitalWrite(PIN_NOISE, 0);
|
||||
// digitalWrite(PIN_NOISE, 0);
|
||||
}
|
||||
|
||||
delay(NOISE_DELAY);
|
||||
delay(100);
|
||||
count++;
|
||||
}
|
||||
|
||||
void printValues() {
|
||||
float temp = bme.readTemperature();
|
||||
float humidity = bme.readHumidity();
|
||||
float ppm = co2_sensor.getCO2();
|
||||
float cppm = co2_sensor.getCorrectedCO2(temp, humidity);
|
||||
Serial.print("ppm: ");
|
||||
Serial.println(ppm);
|
||||
Serial.print("Temperature: ");
|
||||
Serial.println(temp);
|
||||
Serial.print("Humidity: ");
|
||||
Serial.println(humidity);
|
||||
Serial.print("corrected ppm: ");
|
||||
Serial.println(cppm);
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue