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esp32-co2-mhz19b
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Code cleanup

This commit is contained in:
Laura Hausmann 2022-04-29 00:31:24 +02:00
parent 78920d7f3a
commit 34f37b9dda
Signed by: zotan
GPG Key ID: D044E84C5BE01605
2 changed files with 7 additions and 11 deletions
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1
.gitignore vendored
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@ -1,3 +1,4 @@
.DS_Store
.pio
.idea
.vscode

17
src/main.cpp
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@ -3,11 +3,7 @@
#include "Adafruit_AHTX0.h"
#include "LiquidCrystal_I2C.h"
#define RX_PIN 16 // Rx pin which the MHZ19 Tx pin is attached to
#define TX_PIN 17 // Tx pin which the MHZ19 Rx pin is attached to
#define BAUDRATE 9600 // Device to MH-Z19 Serial baudrate (should not be changed)
MHZ19 myMHZ19; // Constructor for library
MHZ19 myMHZ19;
Adafruit_AHTX0 aht;
LiquidCrystal_I2C LCD(0x27,2,1,0,4,5,6,7,3,POSITIVE);
@ -36,12 +32,11 @@ void IRAM_ATTR BacklightToggle() {
void setup()
{
Serial.begin(9600); // Device to serial monitor feedback
Serial.begin(9600);
Serial2.begin(9600, SERIAL_8N1, 16, 17);
Serial2.begin(BAUDRATE, SERIAL_8N1, RX_PIN, TX_PIN); // (Uno example) device to MH-Z19 serial start
myMHZ19.begin(Serial2); // *Serial(Stream) refence must be passed to library begin().
myMHZ19.autoCalibration(); // Turn auto calibration ON (OFF autoCalibration(false))
myMHZ19.begin(Serial2);
myMHZ19.autoCalibration();
myMHZ19.setRange(2000);
Serial.println("MHZ19 init:");
@ -109,7 +104,7 @@ void loop() {
int co2 = myMHZ19.getCO2(false);
if (myMHZ19.errorCode != RESULT_OK) {
Serial.print("Error. Response Code: ");
Serial.println(myMHZ19.errorCode); // Get the Error Code value
Serial.println(myMHZ19.errorCode);
return;
}
LCD.setCursor(0, 1);