Home Assistant and Monitoring System based on ESP32 MCU
EXMAPLE CODE
#include <ESPJarvis.h>
//函数定义
void ShowSoftwareInfo();
void InitWifi();
void InitHardware();
//用户无线网络设置参数//
const char* ssid = "xxxx"; // 无线网络名称
const char* password = "xxxx"; // 无线网络密码
//OLED屏设置
#define SCREEN_WIDTH 128 // 定义显示屏宽度为128像素
#define SCREEN_HEIGHT 64 // 定义显示屏高度为64像素
#define SCREEN_RESET -1 // -1表示共享和ESP32的复位信号
#define SCREEN_ADDRESS 0x3C // OLED显示屏I2C总线的地址，查数据手册可知，一般为0x3C或者0x3D
/* 初始化OLED显示屏对象,传入我们之前定义好的值*/
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, SCREEN_RESET);
/* 初始化Jarvis对象,192.168.0.18是树莓派的IP地址请根据自己的地址修改，1883是MQTT服务器的默认端口号*/
ESPJarvis Jarvis = ESPJarvis(display, "192.168.0.18", 1883);
int iTime;//记录当前运行时间
void setup(void) {
InitHardware();
InitWifi();
Jarvis.setClientData("ESP32Client","test","2022");//这里填上登入MQTT的用户名和密码，"ESP32Client"是ID号可以随便写
while (Jarvis.connect()!=true)
{
Jarvis.printMSG(4,"ConnectBroker...[ERR]");
char text[21];
sprintf(text,"ErrorCode: %d",Jarvis.getServerState());
Jarvis.printMSG(5,text);
delay(2000);
}
Jarvis.printMSG(7,"System is Online...");
delay(1000);
Jarvis.showVersion();
}
void loop(void) {
iTime=(int)(millis()/1000)%60;
Jarvis.run();
if(iTime <= 20){
Jarvis.showCPUPage();//显示CPU状态
}else if(iTime <= 35){
Jarvis.showGPUPage();//显示GPU状态
}else if(iTime <= 50){
Jarvis.showMemoryPage();//显示内存，SWAP空间和硬盘的使用状态
}else{
Jarvis.showCPUGPUPage();//显示CPU和GPU的状态
}
delay(200);
}
void InitHardware(){
Wire.begin();
if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
Serial.println("SSD1306 allocation failed");
for(;;); // 表示连接主控失败
}
display.clearDisplay();// 清空显示缓存
display.setTextColor(WHITE);
display.setTextSize(1);
Jarvis.printMSG(1,"ESPJarvis System");
Jarvis.printMSG(2,"Init Hardware...[OK]");
}
void InitWifi(){
unsigned char connectionTime = 0;
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Jarvis.printMSG(3,"Init WIFI...");
while (WiFi.status() != WL_CONNECTED) {
Serial.print('.');
delay(1000);
connectionTime = connectionTime + 1;
if(connectionTime > 15){
Jarvis.printMSG(3,"Init WIFI...[ERR]");
Jarvis.printMSG(4,"Please check");
Jarvis.printMSG(5,"User WIFI Settings!");
delay(60000);
connectionTime = 0;
}
}
WiFi.setAutoReconnect(true);
Jarvis.printMSG(3,"Init WIFI...[OK]");
Jarvis.printMSG(4,"IP Address: ");
Jarvis.printMSG(5,WiFi.localIP().toString().c_str());
}