OLED_ShowString(3, 1, "Speed3:"); uint8_t RX_Data; while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET); RX_Data = USART_ReceiveData(USART1); if(RX_Data == '1') { OLED_ShowString(1, 1, "Speed1:"); } else if(RX_Data == '2') { OLED_ShowString(2, 1, "Speed2:");

这段代码是在嵌入式系统中使用的，主要是通过串口通信的方式接收数据，并根据数据的不同值来控制 OLED 屏幕显示不同的文字。具体来说，该代码首先在 OLED 屏幕上显示 "Speed3:" 这个字符串，然后通过串口接收数据，存储在 RX_Data 变量中。如果 RX_Data 的值为 '1'，则 OLED 屏幕上显示 "Speed1:"；如果 RX_Data 的值为 '2'，则 OLED 屏幕上显示 "Speed2:"。

这段代码可能是用于控制某种设备的速度，根据不同的输入值来改变速度等级，并通过 OLED 屏幕来显示当前的速度等级。

相关问题

stm32f103c8t6OLED显示温湿度代码

以下是使用STM32F103C8T6和OLED屏幕显示温湿度的代码示例：

#include "stm32f10x.h"
#include "dht11.h"
#include "OLED_IIC.h"
#include "delay.h"
#include "stdlib.h"

#define DHT11_GPIO GPIOB
#define DHT11_PIN GPIO_Pin_10

void GPIO_Configuration(void);
void USART_Configuration(void);
void NVIC_Configuration(void);
void SysTick_Configuration(void);
void TIM_Configuration(void);
void OLED_Display_Temp_Humi(float temp, float humi);

volatile uint32_t TimingDelay;

int main(void)
{
  SysTick_Configuration();
  GPIO_Configuration();
  USART_Configuration();
  NVIC_Configuration();
  TIM_Configuration();
  OLED_Init();
  OLED_Clear();
  OLED_ShowString(0,0,"Temperature/Humidity");
  
  while(1)
  {
    float temp, humi;
    if(DHT11_Read_Data(DHT11_GPIO, DHT11_PIN, &temp, &humi) == SUCCESS)
    {
      OLED_Display_Temp_Humi(temp, humi);
    }
    Delay_ms(2000);
  }
}

void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
  
  GPIO_InitStructure.GPIO_Pin = DHT11_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(DHT11_GPIO, &GPIO_InitStructure);
  GPIO_SetBits(DHT11_GPIO, DHT11_PIN);
}

void USART_Configuration(void)
{
  USART_InitTypeDef USART_InitStructure;
  
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
  
  USART_InitStructure.USART_BaudRate = 115200;
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;
  USART_InitStructure.USART_Parity = USART_Parity_No;
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
  USART_Init(USART1, &USART_InitStructure);
  USART_Cmd(USART1, ENABLE);
}

void NVIC_Configuration(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;
  
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
  
  USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
}

void SysTick_Configuration(void)
{
  if(SysTick_Config(SystemCoreClock / 1000))
  {
    while(1);
  }
}

void TIM_Configuration(void)
{
  TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
  
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
  
  TIM_TimeBaseStructure.TIM_Period = 999;
  TIM_TimeBaseStructure.TIM_Prescaler = 7199;
  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
  
  TIM_Cmd(TIM3, ENABLE);
}

void OLED_Display_Temp_Humi(float temp, float humi)
{
  char temp_str[10], humi_str[10];
  
  gcvt(temp, 2, temp_str);
  gcvt(humi, 2, humi_str);
  
  OLED_ShowString(0,20,"Temp:");
  OLED_ShowString(32,20,temp_str);
  OLED_ShowChar(96,20,'C',8);
  
  OLED_ShowString(0,40,"Humi:");
  OLED_ShowString(32,40,humi_str);
  OLED_ShowChar(96,40,'%',8);
}

void Delay_ms(__IO uint32_t nTime)
{ 
  TimingDelay = nTime;
  while(TimingDelay != 0);
}

void TimingDelay_Decrement(void)
{
  if (TimingDelay != 0x00)
  { 
    TimingDelay--;
  }
}

void USART1_IRQHandler(void)
{
  if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
  {
    USART_SendData(USART1, USART_ReceiveData(USART1));
    while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
  }
}

其中，dht11.h和OLED_IIC.h是DHT11温湿度传感器和OLED屏幕的库文件。注意修改DHT11_GPIO和DHT11_PIN为实际使用的GPIO和引脚号。

STM32F103c8t6驱动TFluna激光雷达并用OLED显示代码

以下是一个简单的例程，可以帮助你驱动TFLuna激光雷达并使用OLED屏幕显示数据。需要使用STM32F103C8T6开发板和OLED屏幕模块。请注意，本代码仅供参考，你需要自己根据实际情况进行修改和优化。

#include "stm32f10x.h"
#include "usart.h"
#include "oled.h"

#define TFLUNA_UART USART1

void TFLuna_Init(void);
void TFLuna_ReadData(uint8_t* pData, uint16_t size);
void TFLuna_SendCommand(const char* cmd);

int main(void)
{
    uint8_t tfluna_data[9];
    uint16_t distance = 0;
    char oled_str[20];

    // 初始化USART1和OLED
    USART1_Config();
    OLED_Init();

    // 初始化TFLuna激光雷达
    TFLuna_Init();

    while(1)
    {
        // 读取TFLuna激光雷达数据
        TFLuna_ReadData(tfluna_data, 9);
        distance = (tfluna_data[3] << 8) | tfluna_data[2];

        // 显示距离数据到OLED
        sprintf(oled_str, "Distance:%dmm", distance);
        OLED_ShowString(0, 0, oled_str);
    }
}

void TFLuna_Init(void)
{
    // 配置GPIO
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // 配置USART1
    USART_InitTypeDef USART_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

    USART_InitStructure.USART_BaudRate = 115200;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(TFLUNA_UART, &USART_InitStructure);

    USART_Cmd(TFLUNA_UART, ENABLE);
}

void TFLuna_ReadData(uint8_t* pData, uint16_t size)
{
    uint16_t i;

    // 发送读取命令
    TFLuna_SendCommand("D");

    // 读取数据
    for(i = 0; i < size; i++)
    {
        while(USART_GetFlagStatus(TFLUNA_UART, USART_FLAG_RXNE) == RESET);
        pData[i] = USART_ReceiveData(TFLUNA_UART);
    }
}

void TFLuna_SendCommand(const char* cmd)
{
    while(*cmd)
    {
        USART_SendData(TFLUNA_UART, *cmd++);
        while(USART_GetFlagStatus(TFLUNA_UART, USART_FLAG_TXE) == RESET);
    }
}

需要注意的是，本例程假设TFLuna激光雷达的通信协议是ASCII码，并且读取距离数据的命令是"D"。如果你的TFLuna激光雷达通信协议不同，或者读取距离数据的命令不同，请修改相应的代码。另外，OLED显示屏模块的接口也需要根据具体情况进行修改。