STM32F103VC+DS18B20温度+hc-sr04超声波测距+I2C OLED显示

Posted 2022-12-26 perseverance52

STM32F103VC+DS18B20温度+hc-sr04超声波测距+I2C OLED显示

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• 📌相关篇《STM32F103VE基于STM32CubeMX 配置I2C驱动0.96/1.3 OLED显示》
• 📺实物演示：
  

• 🎉本项目基于标准库开发，同时支持极海APM32F103VC，OLED支持0.96寸和1.3寸I2C OLED屏幕

⛳屏幕类型说明

• 🍁驱动0.96寸屏幕和1.3寸屏幕有2处需要调整：

• 1. OLED初始化函数：

//初始化SSD1306
void OLED_Init(void)

	HZ=GB16_NUM();
	IIC_GPIO_Config();
	Write_IIC_Command(0xAE); //--display off
	Write_IIC_Command(0x02);//-设置低位列地址set low column address 注意：0.96屏幕从0x00开始写数据，1.3寸屏幕从0x02开始写数据
	Write_IIC_Command(0x10); //---set high column address
	Write_IIC_Command(0x40); //--set start line address
	Write_IIC_Command(0xB0); //--set page address
	Write_IIC_Command(0x81); // contract control
	Write_IIC_Command(0xFF); //--128
	Write_IIC_Command(0xA1); //set segment remap
	Write_IIC_Command(0xA6); //--normal / reverse
	Write_IIC_Command(0xA8); //--set multiplex ratio(1 to 64)
	Write_IIC_Command(0x3F); //--1/32 duty
	Write_IIC_Command(0xC8); //Com scan direction
	Write_IIC_Command(0xD3); //-set display offset
	Write_IIC_Command(0x00); //
	Write_IIC_Command(0xD5); //set osc division
	Write_IIC_Command(0x80); //
	Write_IIC_Command(0xD8); //set area color mode off
	Write_IIC_Command(0x05); //
	Write_IIC_Command(0xD9); //Set Pre-Charge Period
	Write_IIC_Command(0xF1); //
	Write_IIC_Command(0xDA); //set com pin configuartion
	Write_IIC_Command(0x12); //
	Write_IIC_Command(0xDB); //set Vcomh
	Write_IIC_Command(0x30); //
	Write_IIC_Command(0x8D); //set charge pump enable
	Write_IIC_Command(0x14); //
	Write_IIC_Command(0xAF); //--turn on oled panel

• 2. 清屏函数：

//OLED全屏填充
void OLED_Fill(u8 fill_Data)

	u8 m,n;
	for(m=0;m<8;m++)
	
		Write_IIC_Command(0xb0+m);		//page0-page1
		Write_IIC_Command(0x02);//low  column start address1.3寸屏幕发送地址是从0x02开始的，0.96屏幕是从0x00地址开始的特别注意个地方！！！
		Write_IIC_Command(0x10);		//high column start address
		for(n=0;n<130;n++)
		
			Write_IIC_Data(fill_Data);
		
	

📝接口定义说明

					VCC--3.3V/5V
					GND--GND
					SCL--PB8
					SDA--PB9
18B20接线定义:
					VCC--3.3V/5V
					GND--GND
					DQ--PA5 
					
HC-SR04超声波接线定义:
					VCC--3.3V/5V（最好选择是5V供电）
					GND--GND
					Trig--PB7
					Echo--PB6

📚程序源码

链接：https://pan.baidu.com/s/1IwL8D7NlIZTClr7pgAlf7g 
提取码：mbaf