STM32F03C8T6+ADC信号采集+OLED波形显示

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• ✨本项目来源于开源项目，可以自行准备一块STM32F03C8T6和一块OLED屏幕就可以验证并演示出效果。

• 🔖通过手指皮肤接触探测输入引脚：PA7
  
• 🌿PA8引脚上的方波输出
  
• 🌿PB13引脚上的方波输出
  

PB13和PA8:互补型方波输出引脚

🛠硬件搭建

• 🌾OLED屏幕：可以是0.96寸屏幕或者是1.3寸 IIC接口的OLED屏幕
• 🌴STM32F103C8T6最新系统板一块
• 🌿若干导线

🍁工程架构

📝接线说明

ADC检测引脚：PA7，相关定义在BSP_ADC.h
OLED IIC引脚定义：bsp_i2c_gpio.h
SDA  --- PA3
SCL  --- PA2
PWM方波输出引脚：BSP_ADVANCED_TIMER.h
PB13和PA8:互补型方波输出引脚，
PB12:低电平

⛳0.96寸屏幕和1.3寸屏幕驱动细节差异说明

在OLED_I2C.c文件中

1. 清屏函数

void OLED_CLS(void)//清屏
{
	uint8_t i,j;
	for(i=0;i<8;i++)
	{
		
		WriteCmd(0xb0+i);		//page0-page8
		WriteCmd(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！！！！
		WriteCmd(0x10);			//high column start address
		for(j=0;j<128;j++)
		{
			DataBuffer[i][j]=0x00;
		}
	}
	Write_DataBuffer();
}

2. 初始化函数

void OLED_Init(void)
{
	i2c_CfgGpio();				 /*I2C总线的GPIO初始化*/
	Delay_ms(1000);		// 1s,这里的延时很重要,上电后延时，没有错误的冗余设计
	
	WriteCmd(0xAE); //display off
	WriteCmd(0x20);	//Set Memory Addressing Mode	
	WriteCmd(0x10);	//00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
	WriteCmd(0xb0);	//Set Page Start Address for Page Addressing Mode,0-7
	WriteCmd(0xc8);	//Set COM Output Scan Direction
	WriteCmd(0x02); //---set low column 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
	WriteCmd(0x10); //---set high column address
	WriteCmd(0x40); //--set start line address
	WriteCmd(0x81); //--set contrast control register
	WriteCmd(0xff); //亮度调节 0x00~0xff
	WriteCmd(0xa1); //--set segment re-map 0 to 127
	WriteCmd(0xa6); //--set normal display
	WriteCmd(0xa8); //--set multiplex ratio(1 to 64)
	WriteCmd(0x3F); //
	WriteCmd(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
	WriteCmd(0xd3); //-set display offset
	WriteCmd(0x00); //-not offset
	WriteCmd(0xd5); //--set display clock divide ratio/oscillator frequency
	WriteCmd(0xf0); //--set divide ratio
	WriteCmd(0xd9); //--set pre-charge period
	WriteCmd(0x22); //
	WriteCmd(0xda); //--set com pins hardware configuration
	WriteCmd(0x12);
	WriteCmd(0xdb); //--set vcomh
	WriteCmd(0x20); //0x20,0.77xVcc
	WriteCmd(0x8d); //--set DC-DC enable
	WriteCmd(0x14); //
	WriteCmd(0xaf); //--turn on oled panel
	
}

本代码默认采用的是1.3寸的屏幕驱动显示

📚资源链接

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• 🔖带引脚说明注释版

链接：https://pan.baidu.com/s/1uGAJVJs7Z1E4Mb2FSrRGFw 
提取码：mrdp

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