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// sketch_jun30d.ino

#include <Wire.h>

#include "SparkFun_BMP581_Arduino_Library.h"

#include <Adafruit_GFX.h>

#include <Adafruit_ST7789.h>

#include <SPI.h>

#include <U8g2_for_Adafruit_GFX.h>  // 添加U8g2库支持中文字体



// Screen pin configuration

#define TFT_CS 53

#define TFT_RST 4

#define TFT_DC 2

#define TFT_MOSI 51

#define TFT_SCLK 52



// Using hardware SPI

Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST);

U8G2_FOR_ADAFRUIT_GFX u8g2_for_adafruit_gfx;  // 创建U8g2对象



// Create a new sensor object

BMP581 pressureSensor;



// I2C address selection

uint8_t i2cAddress = BMP581_I2C_ADDRESS_DEFAULT;  // 0x47



// Display configuration

#define SCREEN_WIDTH 240

#define SCREEN_HEIGHT 320

#define ST77xx_PURPLE 0x862F

#define VALUE_SIZE 3

#define LABEL_SIZE 1



// Color definitions

#define BACKGROUND ST77XX_BLACK

#define TEXT_COLOR ST77XX_WHITE

#define TEMP_COLOR ST77xx_PURPLE

#define PRESS_COLOR ST77XX_CYAN

#define ALT_COLOR ST77XX_GREEN

#define BOX_COLOR ST77XX_ORANGE



// 精简版中文字体定义

#define CN_FONT u8g2_font_unifont_t_chinese3  // 使用精简中文字体



void setup() {

  Serial.begin(115200);

  Serial.println("BMP581 Enhanced Text Display Example");



  // Initialize I2C library

  Wire.begin();



  // Initialize screen

  tft.init(SCREEN_WIDTH, SCREEN_HEIGHT);

  tft.setRotation(3);

  tft.fillScreen(BACKGROUND);

  tft.setTextColor(TEXT_COLOR);



  // 初始化U8g2对象，设置中文显示

  u8g2_for_adafruit_gfx.begin(tft);                      // 将U8g2与Adafruit_GFX关联

  u8g2_for_adafruit_gfx.setFontMode(1);                  // 透明模式

  u8g2_for_adafruit_gfx.setFontDirection(0);             // 从左到右

  u8g2_for_adafruit_gfx.setForegroundColor(TEXT_COLOR);  // 设置前景色

  u8g2_for_adafruit_gfx.setFont(CN_FONT);                // 使用精简中文字体



  // Check sensor connection

  while (pressureSensor.beginI2C(i2cAddress) != BMP5_OK) {

    Serial.println("Error: BMP581 not connected, check wiring and I2C address!");



    // 显示错误信息

    u8g2_for_adafruit_gfx.setCursor(10, 30);

    u8g2_for_adafruit_gfx.print("传感器未找到!");

    u8g2_for_adafruit_gfx.setCursor(10, 60);

    u8g2_for_adafruit_gfx.print("请排查接线!");



    delay(1000);

    tft.fillScreen(BACKGROUND);

  }



  Serial.println("BMP581 connected!");

  drawStaticElements();

}

void loop() {

  // Get measurements from the sensor

  bmp5_sensor_data data = { 0, 0 };

  int8_t err = pressureSensor.getSensorData(&data);



  if (err == BMP5_OK) {

    // Convert pressure from Pa to hPa (1 hPa = 100 Pa)

    float pressure_hPa = data.pressure / 100.0;



    // Calculate altitude using simplified formula

    float altitude = (1013.25 - pressure_hPa) / 16.5 * 100;



    // Update text display

    updateTextDisplay(data.temperature, pressure_hPa, altitude);



    Serial.print("空气温度 (C): ");

    Serial.print(data.temperature);

    Serial.print("\t大气压强 (hPa): ");

    Serial.print(pressure_hPa);

    Serial.print("\t海拔高度 (m): ");

    Serial.println(altitude);

  } else {

    Serial.print("Error getting data from sensor! Error code: ");

    Serial.println(err);

  }



  delay(1000);  // Update every second

}

void drawStaticElements() {

  tft.fillScreen(BACKGROUND);



  // 使用U8g2绘制中文标题

  u8g2_for_adafruit_gfx.setForegroundColor(ST77XX_YELLOW);

  u8g2_for_adafruit_gfx.setCursor(SCREEN_WIDTH / 2 + 95, 20);  // 居中位置

  u8g2_for_adafruit_gfx.print("BMP581传感器");                 // 中文标题



  // 绘制温度框和标签

  drawDataBox(30, 10, "热量", "(C)", TEMP_COLOR);



  // 绘制压力框和标签

  drawDataBox(30, 90, "大气压强", "(hPa)", PRESS_COLOR);



  // 绘制高度框和标签

  drawDataBox(30, 170, "距离海平面高度", "(m)", ALT_COLOR);

}



void drawDataBox(int x, int y, const char* label, const char* unit, uint16_t color) {

  // Draw box

  tft.drawRoundRect(x, y, SCREEN_WIDTH - 60, 60, 10, BOX_COLOR);



  // 使用U8g2绘制中文标签

  u8g2_for_adafruit_gfx.setForegroundColor(color);

  u8g2_for_adafruit_gfx.setCursor(x + 15, y + 20);  // 调整位置

  u8g2_for_adafruit_gfx.print(label);



  // Draw unit (smaller text)

  tft.setTextSize(LABEL_SIZE - 1);

  tft.setCursor(x + SCREEN_WIDTH - 60 - 40, y + 10);

  tft.print(unit);

}

void updateTextDisplay(float temp, float pressure, float altitude) {

  // Update temperature

  updateDataValue(30, 10, temp, 1, TEMP_COLOR);



  // Update pressure

  updateDataValue(30, 90, pressure, 1, PRESS_COLOR);



  // Update altitude

  updateDataValue(30, 170, altitude, 1, ALT_COLOR);

}



void updateDataValue(int x, int y, float value, int decimals, uint16_t color) {

  // Clear previous value

  tft.fillRect(x + 10, y + 30, SCREEN_WIDTH - 80, 25, BACKGROUND);



  // Draw new value

  tft.setTextSize(VALUE_SIZE);

  tft.setTextColor(color);

  tft.setCursor(x + 15, y + 30);

  tft.print(value, decimals);

}

// 确保正确定义中文字体

#define CN_FONT u8g2_font_unifont_t_chinese3

u8g2_for_adafruit_gfx.setFont(CN_FONT);

void scanI2C() {

  for(uint8_t addr=1; addr<127; addr++) {

    Wire.beginTransmission(addr);

    if(Wire.endTransmission() == 0) {

      Serial.print("Found device at 0x");

      Serial.println(addr, HEX);

    }

  }

}