聚豐項(xiàng)目 > 基于F401的多功能家居輔助系統(tǒng)
在家居環(huán)境中，離不開對(duì)環(huán)境的感知與調(diào)節(jié)。利用微控器與相應(yīng)的傳感器進(jìn)行組合可以對(duì)環(huán)境的相應(yīng)參數(shù)進(jìn)行檢測(cè)并加以調(diào)節(jié)和控制。從簡(jiǎn)化設(shè)計(jì)的角度出發(fā)，合理地選擇開發(fā)板和傳感器功能板可起到事半功倍的效果。在多功能家居輔助系統(tǒng)設(shè)計(jì)中，將STM32F401_NUCLEO開發(fā)板與X-NUCLEO-IKS01A1功能模塊組合在一起就會(huì)有這樣的效果，它可以對(duì)溫濕度、大氣壓及6軸狀態(tài)進(jìn)行檢測(cè)，從而為相應(yīng)的控制提供數(shù)據(jù)支持。
jinglixixi
jinglixixi
團(tuán)隊(duì)成員
李靜 實(shí)驗(yàn)師
該項(xiàng)目的硬件部分主要由STM32F401_NUCLEO開發(fā)板、X-NUCLEO-IKS01A1功能模塊、雙色0.96’OLED屏、2.4’TFT彩色屏、軟按鍵、MP3語音模塊等組成。
其中STM32F401_NUCLEO開發(fā)板承擔(dān)數(shù)據(jù)處理、X-NUCLEO-IKS01A1功能模塊承擔(dān)環(huán)境信號(hào)采集、OLED屏用于數(shù)據(jù)顯示；在連接光電隔離繼電器的情況下，可進(jìn)行溫濕度等的控制。
結(jié)構(gòu)框圖
該項(xiàng)目的軟件開發(fā)平臺(tái)采樣keil5.0，并由C語音進(jìn)行編程，所涉及的功能模塊有OLED屏顯示模塊、RTC讀取與顯示模塊、溫濕度及大氣壓的讀取與顯示模塊。
功能框圖
OLED屏的初始化函數(shù)為：
void OLED_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
OLED_SCLK_Set();
OLED_SDIN_Set();
Delay_1ms(800);
OLED_WR_Byte(0xAE,OLED_CMD);
OLED_WR_Byte(0x00,OLED_CMD);
OLED_WR_Byte(0x10,OLED_CMD);
OLED_WR_Byte(0x40,OLED_CMD);
OLED_WR_Byte(0xB0,OLED_CMD);
OLED_WR_Byte(0x81,OLED_CMD);
OLED_WR_Byte(0xFF,OLED_CMD);
OLED_WR_Byte(0xA1,OLED_CMD);
OLED_WR_Byte(0xA6,OLED_CMD);
OLED_WR_Byte(0xA8,OLED_CMD);
OLED_WR_Byte(0x3F,OLED_CMD);
OLED_WR_Byte(0xC8,OLED_CMD);
OLED_WR_Byte(0xD3,OLED_CMD);
OLED_WR_Byte(0x00,OLED_CMD);
OLED_WR_Byte(0xD5,OLED_CMD);
OLED_WR_Byte(0x80,OLED_CMD);
OLED_WR_Byte(0xD8,OLED_CMD);
OLED_WR_Byte(0x05,OLED_CMD);
OLED_WR_Byte(0xD9,OLED_CMD);
OLED_WR_Byte(0xF1,OLED_CMD);
OLED_WR_Byte(0xDA,OLED_CMD);
OLED_WR_Byte(0x12,OLED_CMD);
OLED_WR_Byte(0xDB,OLED_CMD);
OLED_WR_Byte(0x30,OLED_CMD);
OLED_WR_Byte(0x8D,OLED_CMD);
OLED_WR_Byte(0x14,OLED_CMD);
OLED_WR_Byte(0xAF,OLED_CMD);
}
RTC時(shí)鐘顯示函數(shù)為：
static void RTC_Handler(TMsg *Msg)
{
uint8_t subSec = 0;
RTC_DateTypeDef sdatestructureget;
RTC_TimeTypeDef stimestructure;
if(DataLoggerActive || AutoInit)
{
HAL_RTC_GetTime(&RtcHandle, &stimestructure, FORMAT_BIN);
HAL_RTC_GetDate(&RtcHandle, &sdatestructureget, FORMAT_BIN);
subSec = ((((((int) RTC_SYNCH_PREDIV) - ((int) stimestructure.SubSeconds)) * 100) / (RTC_SYNCH_PREDIV + 1)) & 0xff);
}
if(DataLoggerActive)
{
Msg->Data[3] = (uint8_t)stimestructure.Hours;
Msg->Data[4] = (uint8_t)stimestructure.Minutes;
Msg->Data[5] = (uint8_t)stimestructure.Seconds;
Msg->Data[6] = subSec;
}
else if(AutoInit)
{
sprintf(dataOut, "Time: %d:%d:%d.%d", stimestructure.Hours,
stimestructure.Minutes, stimestructure.Seconds, subSec);
OLED_ShowString(0,0,dataOut,16);
sprintf(dataOut, "TimeStamp: %d:%d:%d.%d\n", stimestructure.Hours,
stimestructure.Minutes, stimestructure.Seconds, subSec);
HAL_UART_Transmit(&UartHandle, (uint8_t*)dataOut, strlen(dataOut), 5000);
}
}
氣壓的檢測(cè)與顯示函數(shù)為：
static void Pressure_Sensor_Handler(TMsg *Msg)
{
int32_t d1, d2;
if(BSP_PRESSURE_isInitialized())
{
BSP_PRESSURE_GetPressure((float *)&PRESSURE_Value);
floatToInt(PRESSURE_Value, &d1, &d2, 2);
if ( DataLoggerActive )
{
if(Sensors_Enabled & PRESSURE_SENSOR)
{
Serialize(&Msg->Data[7], d1, 2);
Serialize(&Msg->Data[9], d2, 2);
}
}
else if ( AutoInit )
{
sprintf(dataOut, "PRESS: %d.%02d", (int)d1, (int)d2);
HAL_UART_Transmit(&UartHandle, (uint8_t*)dataOut, strlen(dataOut), 5000);
OLED_ShowString(0,2,dataOut,16);
}
}
else
{
if(AutoInit)
{
BSP_PRESSURE_Init();
}
}
}
溫濕度的檢測(cè)與顯示函數(shù)為：
static void HumTemp_Sensor_Handler(TMsg *Msg)
{
int32_t d1, d2, d3, d4;
if(BSP_HUM_TEMP_isInitialized())
{
BSP_HUM_TEMP_GetHumidity((float *)&HUMIDITY_Value);
BSP_HUM_TEMP_GetTemperature((float *)&TEMPERATURE_Value);
floatToInt(HUMIDITY_Value, &d1, &d2, 2);
floatToInt(TEMPERATURE_Value, &d3, &d4, 2);
if ( DataLoggerActive )
{
if(Sensors_Enabled & TEMPERATURE_SENSOR)
{
Serialize(&Msg->Data[11], d3, 1);
Serialize(&Msg->Data[12], d4, 1);
}
if(Sensors_Enabled & HUMIDITY_SENSOR)
{
Serialize(&Msg->Data[13], d1, 1);
Serialize(&Msg->Data[14], d2, 1);
}
}
else if ( AutoInit )
{
sprintf(dataOut, "HUM: %d.%02d", (int)d1, (int)d2);
OLED_ShowString(0,4,dataOut,16);
sprintf(dataOut, "TEMP: %d.%02d", (int)d3, (int)d4);
OLED_ShowString(0,6,dataOut,16);
sprintf(dataOut, "HUM: %d.%02d TEMP: %d.%02d\n", (int)d1, (int)d2, (int)d3, (int)d4);
HAL_UART_Transmit(&UartHandle, (uint8_t*)dataOut, strlen(dataOut), 5000);
}
}
else
{
if(AutoInit)
{
BSP_HUM_TEMP_Init();
}
}
}
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