ADC介绍
ESP32集成了两个 12
位SAR(逐次逼近寄存器)
adc ,共支持18个测量通道。
1、两个 ADC 通道简介:
ADC1:
- 支持 8 个通道,包括:GPIO32 - GPIO39(并非按顺序)
ADC2:
- 支持 10 个通道,包括:GPIO0, GPIO2, GPIO4, GPIO12 - GPIO15, GOIO25 - GPIO27(并非按顺序)
ESP32 内置霍尔传感器,采用 ADC1 的通道0和3(GPIO36 和 GPIO39)。如果想要使用ESP32内置的霍尔传感器,请不要对这两个GPIO做任何配置!
接线方式
Ps2--- ----ESP32
VRY ADC_CHANNEL_6(GPIO 34)
VRX ADC_CHANNEL_7(GPIO 35)
SW GPIO_NUM_12
效果
代码
void Get_keyNum(void)
{
uint8_t KeyNum = 0;
BaseType_t err;
//int val_x = adc1_get_raw(PS2_X_CHANNEL);
if (adc1_get_raw(PS2_X_CHANNEL) ==4095) {
Delay_ms(20);
while (adc1_get_raw(PS2_X_CHANNEL)==4095);
Delay_ms(20);
KeyNum = 1;
} else if (adc1_get_raw(PS2_X_CHANNEL)==0) {
Delay_ms(20);
while (adc1_get_raw(PS2_X_CHANNEL)==0);
Delay_ms(20);
KeyNum = 2;
}
// 检测SW按键是否按下
if (btn_intr_flag == 1) {
KeyNum = 3;
btn_intr_flag = 0;
}
if((key_queue!=NULL)&&(KeyNum))
{
err=xQueueSend(key_queue,&KeyNum,10);
if(err!= pdPASS)
{
printf("Send Failed\r\n");
}
}
//printf("KeyNum:%d\n", KeyNum);
}
OLED
#include <stdio.h>
#include "menu.h"
#include "dht11.h"
#include "OLED.h"
#include "bmp.h"
#define Number 25
//定义时间,日期,星期变量
uint16_t hour = 17;
uint16_t minute = 51;
uint16_t second = 0;
uint16_t day = 27;
uint16_t month = 8;
uint16_t year = 23;
uint8_t week = 7;
//索引数组相关
void (*current_operation_index)(); //执行当前操作函数
uint8_t func_index = 0;
/*定义了索引数组,索引数组要配合主程序按键值进行选择*/
Menu_table table[26]=
{
//序号,下一项,确定,返回
{0, 1, 4, 0,(*show1)},//一级界面 图片
{1, 2, 11, 1,(*show2)},//一级界面 时间
{2, 3, 12, 2,(*show3)},//一级界面 led
{3, 0, 13, 3,(*show4)},//一级界面 游戏
//图片的下层界面
{4, 5, 4, 0, (*show5)}, //二级界面 猫
{5, 6, 5, 0, (*show10)}, //二级界面
{6, 7, 6, 0, (*show6)}, //二级界面
{7, 8, 7, 0, (*show7)}, //二级界面
{8, 9, 8, 0, (*show8)}, //二级界面
{9, 10, 9, 0,( *show9)}, //二级界面
{10, 4 ,10, 0, (*show12)}, //二级界面
//时间的下层界面
{11, 11, 11, 1, (*show13)}, //二级界面 时间
//LED的下层界面
{12, 12, 2, 2,(*show14)}, //二级界面 //控制led
//游戏的下层界面
{13, 13, 13, 3, (*show11)}, //二级界面
};
//按键
void Menu_key_set(uint8_t KeyNum)
{
OLED_Clear();
if(KeyNum == 1)
{
func_index=table[func_index].next;//按键next按下后的索引号
OLED_Clear();
}
if(KeyNum == 3)
{
func_index=table[func_index].enter;
OLED_Clear();
}
if(KeyNum == 2)
{
func_index=table[func_index].back;//按键next按下后的索引号
OLED_Clear();
}
current_operation_index=table[func_index].current_operation;//执行当前索引号所对应的功能函数。
(*current_operation_index)();//执行当前操作函数
}
//显示菜单函数
void show0(void)//眼睛
{
OLED_DrawBMPFast(yanjing);
}
void show1(void)//图片
{
OLED_DrawBMPFast(tupian);
}
void show2(void)//时间
{
OLED_ShowCHinese(50,3,0);
OLED_ShowCHinese(66,3,1);
}
void show3(void)//LED
{
OLED_DrawBMPFast(led);
}
void show4(void)//游戏图标
{
OLED_DrawBMPFast(youxiji);
}
//显示图片
void show5(void)
{
OLED_DrawBMPFast(cat);
}
void show6(void)
{
OLED_DrawBMPFast(baozi);
}
void show7(void)
{
OLED_DrawBMPFast(baoziyi);
}
void show8(void)
{
OLED_DrawBMPFast(daishu);
}
void show9(void)
{
OLED_DrawBMPFast(mapi);
}
void show10(void)
{
OLED_DrawBMPFast(dog);
}
//显示太空人
void show11(void)
{
OLED_DrawBMPFast(gImage_1);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_2);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_3);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_4);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_5);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_6);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_7);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_8);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_9);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_10);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_11);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_12);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_13);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_14);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_15);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_16);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_17);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_18);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_19);
Delay_ms(Number);
OLED_DrawBMPFast(gImage_20);
Delay_ms(Number);
}
void show12(void)
{
OLED_ShowCHinese(50,3,9);
OLED_ShowCHinese(66,3,10);
}
//显示时间
void show13(void)
{
OLED_ShowCHinese(0,3,2);
OLED_ShowCHinese(16,3,3);
OLED_ShowChar(32,3,':',16);
OLED_ShowNum(40,3,20,2,16);
OLED_ShowNum(56,3,year/10,1,16);
OLED_ShowNum(64,3,year%10,1,16);
OLED_ShowChar(72,3,'-',16);
OLED_ShowNum(80,3,month/10,1,16);
OLED_ShowNum(88,3,month%10,1,16);
OLED_ShowChar(98,3,'-',16);
OLED_ShowNum(104,3,day/10,1,16);
OLED_ShowNum(112,3,day%10,1,16);
//显示时间
OLED_ShowCHinese(0,1,0);
OLED_ShowCHinese(16,1,1);
OLED_ShowChar(32,1,':',16);
OLED_ShowNum(40,1,hour/10,1,16);
OLED_ShowNum(48,1,hour%10,1,16);
OLED_ShowChar(56,1,':',16);
OLED_ShowNum(64,1,minute/10,1,16);
OLED_ShowNum(72,1,minute%10,1,16);
OLED_ShowChar(80,1,':',16);
OLED_ShowNum(88,1,second/10,1,16);
OLED_ShowNum(96,1,second%10,1,16);
//显示星期
OLED_ShowCHinese(0,5,4);
OLED_ShowCHinese(16,5,5);
OLED_ShowChar(32,5,':',16);
OLED_ShowNum(70,5,week,1,16);
}
//控制led
void show14(void)
{
OLED_DrawBMPFast(dengbao);
}
//void show15(void)
//{
//}
//void show16(void)
//{
//}
//控制时间,日期与星期增加
void Date_Time(void)
{
//显示日期
//判断日期
if(hour>=24)
{
day++;
week++;
if(week >= 7)week = 1;
if(day==30)
{
month++;
day = 0;
if(month==12)
{
year++;
month = 0;
if(year > 2050 || year < 2000) year = 0;
}
}
}
}
完整代码:
ESP32 IDF Vscode: ESP32开发 - Gitee.com