#include <Wire.h>
#define RX1PIN 1
#define TX1PIN 2
// PCF8591地址 (默认地址，A0,A1,A2接地)
#define PCF8591_ADDRESS 0x48
// 通道定义
#define CHANNEL0 0x00
#define CHANNEL1 0x01
#define CHANNEL2 0x02
#define CHANNEL3 0x03
int adcValue_light = 0;
int adcValue_mq2 = 0;
String command= "";
String uartBuffer = "";
int uart_num = -1;
int fire_flag = 0;
int light_flag = 0;
void setup() {
pinMode(17, OUTPUT);
pinMode(8, OUTPUT);
pinMode(3, OUTPUT);
Serial.begin(9600);//串口屏
Serial1.begin(9600, SERIAL_8N1, RX1PIN, TX1PIN);//k230
Wire.begin(16, 15); // SDA=GPIO15, SCL=GPIO16
digitalWrite(8, HIGH);//蜂鸣器操作
digitalWrite(17, LOW);//电机操作
digitalWrite(3, HIGH);//LED操作
Serial.println("PCF8591 ADC测试");
Serial.println("===============");
// 测试PCF8591连接
Wire.beginTransmission(PCF8591_ADDRESS);
if (Wire.endTransmission() == 0) {
Serial.println("PCF8591连接成功");
} else {
Serial.println("PCF8591连接失败，请检查接线");
while(1);
}
}
void loop() {
//k230接收
if (Serial1.available() > 0) {
receiveData();
}
// 读取对应通道
adcValue_light = readPCF8591(0);
int LUX =1000 * adcValue_light / (256 - adcValue_light);
LUX = 49.75 * pow(LUX/1000.0, -1.189);
command = "page0.t1.txt=\"" + String(LUX) + "lx\"\xff\xff\xff";
Serial.print(command);
delay(10);
adcValue_mq2 = readPCF8591(1);
int PPM = 8.1 * pow(2.718, (1.54 * adcValue_mq2 * 3.3) / 256.0);
command = "page0.t3.txt=\"" + String(PPM) + "ppm\"\xff\xff\xff";
Serial.print(command);
delay(10);
if(adcValue_light > 150)light_flag = 1;
if(adcValue_light < 150)light_flag = 0;
// if(adcValue_mq2 > 200)fire_flag = 2;
if(adcValue_mq2 > 150 && adcValue_mq2 < 200)fire_flag = 1;
if(adcValue_mq2 < 150)fire_flag = 0;
if(fire_flag == 1) //有火
{
digitalWrite(3, LOW);//LED操作 亮灯
digitalWrite(8, LOW);//蜂鸣器操作
digitalWrite(17, HIGH);//电机操作
if(uart_num != 3)
displayFireSystemWarning();
}
if(fire_flag == 0) //无火
{
if(uart_num == 3) //k230识别到无火
displaySystemNormal();
if(uart_num != 3)
displayFireWarning();
digitalWrite(8, HIGH);//蜂鸣器操作
digitalWrite(17, LOW);//电机操作
if(light_flag == 1)
digitalWrite(3, LOW);//LED操作
if(light_flag == 0)
digitalWrite(3, HIGH);//LED操作
}
delay(500);
}
// 读取PCF8591指定通道的ADC值
int readPCF8591(uint8_t channel) {
// 设置控制字节：启用模拟输出，选择通道
uint8_t controlByte = 0x40 | (channel & 0x03);
Wire.beginTransmission(PCF8591_ADDRESS);
Wire.write(controlByte); // 发送控制字节
Wire.endTransmission();
// 请求读取2个字节（第一个是前一次转换结果，第二个是当前值）
Wire.requestFrom(PCF8591_ADDRESS, 2);
if (Wire.available() == 2) {
Wire.read(); // 丢弃第一个字节（前一次结果）
return Wire.read(); // 返回当前ADC值
}
return -1; // 读取失败
}
// 可选：设置DAC输出（如果使用模拟输出功能）
void setPCF8591DAC(uint8_t dacValue) {
Wire.beginTransmission(PCF8591_ADDRESS);
Wire.write(0x40); // 启用模拟输出
Wire.write(dacValue); // 设置DAC值
Wire.endTransmission();
}
void receiveData() {
static int count = 0; // 静态变量，只在第一次初始化
uartBuffer = Serial1.readStringUntil(']'); // 使用分隔符
uartBuffer.trim();
String uartBuffer_1 = uartBuffer + ']';
// 使用模式匹配进行判断
if (uartBuffer_1.indexOf("[]") != -1) {
if(uart_num != 3) count = count + 1;
if(count >= 12) //火灾识别延时
{
count = 0;
uart_num = 3;
}
}
if (uartBuffer_1.indexOf("[1]") != -1) {
uart_num = 1;
count = 0;
}
if (uartBuffer_1.indexOf("[0]") != -1) {
uart_num = 0;
count = 0;
}
}
void displayFireWarning() {
Serial.print("page0.g0.txt=\"");
// 此处为防火区域，请勿吸烟
// 此 {0xB4, 0xCB}
Serial.write(0xB4); Serial.write(0xCB);
// 处 {0xB4, 0xA6}
Serial.write(0xB4); Serial.write(0xA6);
// 为 {0xCE, 0xAA}
Serial.write(0xCE); Serial.write(0xAA);
// 防 {0xB7, 0xC0}
Serial.write(0xB7); Serial.write(0xC0);
// 火 {0xBB, 0xF0}
Serial.write(0xBB); Serial.write(0xF0);
// 区 {0xC7, 0xF8}
Serial.write(0xC7); Serial.write(0xF8);
// 域 {0xD3, 0xF2}
Serial.write(0xD3); Serial.write(0xF2);
// ， {0xA3, 0xAC}
Serial.write(0xA3); Serial.write(0xAC);
// 请 {0xC7, 0xEB}
Serial.write(0xC7); Serial.write(0xEB);
// 勿 {0xCE, 0xF1}
Serial.write(0xCE); Serial.write(0xF1);
// 吸 {0xCE, 0xFC}
Serial.write(0xCE); Serial.write(0xFC);
// 烟 {0xD1, 0xCC}
Serial.write(0xD1); Serial.write(0xCC);
Serial.print("\"\xff\xff\xff");
delay(10);
}
void displayFireSystemWarning() {
Serial.print("page0.g0.txt=\"");
// 此处为防火区域即将启动灭火系统请您立即离开
// 此 {0xB4, 0xCB}
Serial.write(0xB4); Serial.write(0xCB);
// 处 {0xB4, 0xA6}
Serial.write(0xB4); Serial.write(0xA6);
// 为 {0xCE, 0xAA}
Serial.write(0xCE); Serial.write(0xAA);
// 防 {0xB7, 0xC0}
Serial.write(0xB7); Serial.write(0xC0);
// 火 {0xBB, 0xF0}
Serial.write(0xBB); Serial.write(0xF0);
// 区 {0xC7, 0xF8}
Serial.write(0xC7); Serial.write(0xF8);
// 域 {0xD3, 0xF2}
Serial.write(0xD3); Serial.write(0xF2);
// 即 {0xBC, 0xB4}
Serial.write(0xBC); Serial.write(0xB4);
// 将 {0xBD, 0xAB}
Serial.write(0xBD); Serial.write(0xAB);
// 启 {0xC6, 0xF4}
Serial.write(0xC6); Serial.write(0xF4);
// 动 {0xB6, 0xAF}
Serial.write(0xB6); Serial.write(0xAF);
// 灭 {0xC3, 0xF0}
Serial.write(0xC3); Serial.write(0xF0);
// 火 {0xBB, 0xF0}
Serial.write(0xBB); Serial.write(0xF0);
// 系 {0xCF, 0xB5}
Serial.write(0xCF); Serial.write(0xB5);
// 统 {0xCD, 0xB3}
Serial.write(0xCD); Serial.write(0xB3);
// 请 {0xC7, 0xEB}
Serial.write(0xC7); Serial.write(0xEB);
// 您 {0xC4, 0xFA}
Serial.write(0xC4); Serial.write(0xFA);
// 立 {0xC1, 0xA2}
Serial.write(0xC1); Serial.write(0xA2);
// 即 {0xBC, 0xB4}
Serial.write(0xBC); Serial.write(0xB4);
// 离 {0xC0, 0xEB}
Serial.write(0xC0); Serial.write(0xEB);
// 开 {0xBF, 0xAA}
Serial.write(0xBF); Serial.write(0xAA);
Serial.print("\"\xff\xff\xff");
delay(10);
}
void displaySystemNormal() {
Serial.print("page0.g0.txt=\"");
// 系统正常
// 系 {0xCF, 0xB5}
Serial.write(0xCF); Serial.write(0xB5);
// 统 {0xCD, 0xB3}
Serial.write(0xCD); Serial.write(0xB3);
// 正 {0xD5, 0xFD}
Serial.write(0xD5); Serial.write(0xFD);
// 常 {0xB3, 0xA3}
Serial.write(0xB3); Serial.write(0xA3);
Serial.print("\"\xff\xff\xff");
delay(10);
}请以以上代码为基础，编写上位机程序，要求上位机显示烟雾浓度，光照强度。当视觉识别模块通过串口发送信息识别到有人拿出烟后上位机显示此处为防火区域，请勿吸烟。当烟雾值达到阈值后上位机显示此处为防火区域，即将启动灭火系统请您立即离开。要求使用ESP32S3主控芯片上的WIFI模块进行上位机设计，编译环境使用Arduino IDE编写。不可以改动我的代码，只需要编写上位机
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