/*
*******************************************************************************
* Copyright (c) 2023 by M5Stack
* Equipped with M5Core sample source code
* 配套 M5Core 示例源代码
* Visit for more information: https://docs.m5stack.com/en/unit/tvoc
* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/unit/tvoc
*
* Describe: TVOC/eCO2.
* Date: 2021/8/26
*******************************************************************************
Description: The screen will display TVOC and CO2. 屏幕将显示TVOC和CO2。
Note: SGP30 needs 15 seconds to initialize calibration after power on.
*/
#include <M5StickCPlus.h>
#include "Adafruit_SGP30.h"
Adafruit_SGP30 sgp;
TFT_eSprite spu = TFT_eSprite(&M5.Lcd); // Sprite object
long last_millis = 0; // for 15sec wait timer
void setup() {
M5.begin(115200);
M5.Lcd.setRotation(3);
spu.setColorDepth(8);
spu.createSprite(240, 135);
M5.Lcd.setTextSize(2);
M5.Lcd.fillScreen(TFT_BLUE);
M5.Lcd.setTextSize(2);
M5.Lcd.setTextColor(TFT_BLACK);
M5.Lcd.setCursor(5, 5);
while (!sgp.begin()) { // Init the sensor.
M5.Lcd.println("Sensor not found");
delay(5000);
}
// M5.Lcd.println("Initialization...");
}
void loop() {
static int i = 4; //initializing
while (i > 0) {
if (millis() - last_millis > 1000) {
last_millis = millis();
i--;
spu.fillSprite(TFT_YELLOW);
spu.setTextColor( BLACK, YELLOW );
spu.setCursor(30, 4, 4); spu.setTextSize(1);
spu.println("Initializing...");
spu.setCursor(60, 34, 4); spu.setTextSize(2);
spu.printf(" %d ", i );
spu.pushSprite(0, 0);
delay(100);
}
}
if (!sgp.IAQmeasure()) { // Commands the sensor to take a single eCO2/VOC
// measurement. 命令传感器进行一次eCO2/VOC测量
Serial.println("Measurement failed");
return;
}
spu.fillSprite(LIGHTGREY);
spu.setCursor(93, 5, 4); spu.setTextSize(2);
spu.setTextColor( BLACK, LIGHTGREY);
spu.printf(" %d \n", sgp.TVOC);
spu.setCursor(93, 65, 4); spu.setTextSize(2);
spu.setTextColor( BLACK, LIGHTGREY);
spu.printf(" %d \n", sgp.eCO2);
spu.setTextColor( BLUE, LIGHTGREY);
spu.setCursor(10, 20, 4); spu.setTextSize(1);
spu.println("TVOC : ");
spu.setCursor(10, 80, 4); spu.setTextSize(1);
spu.println("eCO2 : ");
spu.pushSprite(0, 0); // 画面に反映させる
Serial.printf("TVOC: %d eCO2: %d\n", sgp.TVOC, sgp.eCO2);
// eCO2が1000を超えたら音を鳴らす
if (sgp.eCO2 > 1000) {
spu.setCursor(10, 120, 4); spu.setTextSize(1);
spu.println("kankisite ");
M5.Beep.setBeep(523, 500); M5.Beep.beep();
}
M5.update();
if (M5.Axp.GetBtnPress() == 2) {
M5.Axp.Write1Byte(0x32, M5.Axp.Read8bit(0x32) | 0x80); // Power Off
}
delay(500);
}
void loop() {
}