- #include <stdio.h>
- #include <stdlib.h>
- #include "hw_i2c.h"
- #include "hw_adc.h"
- #include "hw_gpio.h"
- #include "hw_timer.h"
- #include "hw_tft.h"
- //传感器定义
- #define I2C_ADDR_SENSOR 0x01
- #define SENSOR_TEMP 0x01
- #define SENSOR_HUM 0x02
- #define SENSOR_POLLUTION 0x03
- //TFT显示屏定义
- #define LCD_WIDTH 320
- #define LCD_HEIGH 240
- //函数声明
- void readLDSensorValue(int* temp, int* hum, int* pol);
- void drawSensorInformation(int temp, int hum, int pol);
- int main()
- {
- int temp, hum, pol;
-
- //设置GPIO
- HW_GPIO_init();
- //读取传感器值
- readLDSensorValue(&temp, &hum, &pol);
- //设置TFT显示屏
- HW_TFT_Init();
- //在TFT上绘制传感器信息
- drawSensorInformation(temp, hum, pol);
-
- return 0;
- }
- //读取传感器值
- void readLDSensorValue(int* temp, int* hum, int* pol)
- {
- unsigned char data[2];
-
- //读取温度
- hwI2CReadBytes(I2C_ADDR_SENSOR, SENSOR_TEMP, data, 2);
- *temp = (data[0]<<8)|data[1];
-
- //读取湿度
- hwI2CReadBytes(I2C_ADDR_SENSOR, SENSOR_HUM, data, 2);
- *hum = (data[0]<<8)|data[1];
-
- //读取环境污染值
- hwI2CReadBytes(I2C_ADDR_SENSOR, SENSOR_POLLUTION, data, 2);
- *pol = (data[0]<<8)|data[1];
- }
-
- //绘制传感器信息
- void drawTemperatureHumidityPollution(int temp，int hum，int pol)
- {
- char buff[20];
-
- //绘制温度
- sprintf(buff,"Temp. %dC",temp);
- HW_TFT_UsrTextDraw(0,LCD_HEIGH-3*20, buff ,20 ,White, Black );
-
- //绘制湿度
- sprintf(buff,"Hum. %d%%",hum);
- HW_TFT_UsrTextDraw(0,LCD_HEIGH-2*20, buff ,20 ,White, Black );
-
- //绘制环境污染度
- sprintf(buff,"Polution: %dmg/m^3",pol);
- HW_TFT_UsrTextDraw(0,LCD_HEIGH-1*20, buff ,20 ,White, Black );
- }
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