基于STM32的水质检测系统设计

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STMCU小助手发布时间：2022-12-7 16:03

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文章封面:
文章简介:	基于STM32的水质检测系统设计

一、题目要求

说明：（溶解氧浓度的硬件太贵就没做这个）
功能如下：
1.通过TFT屏实现实时各数据，可进行多级菜单切换
2.可以通过按键进行温度、PH、采集频率调节
3.可以通过语音控制温度、PH、采集频率的调节（SU-03T语音模块）
4.通过ESP8266将采取的数据上传到Onenet云端
5.采取的数据超过设置阈值会进行报警提示
6.大气压采取BMP180模块

成品展示

二、硬件材料

$NG6{J5GIRT8S~SZ_C9OH4KV.png$

STM32F103C9T6最小系统

SU-03T语音模块

PH传感器模块（这个相对来说比较贵60几吧）

ESP8266模块

TDS传感器

BMP180大气压传感器

DS18B20温度传感器

TFT显示屏

蜂鸣器

三、部分代码

/*-----------------------main.c------------------*/
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#include "led.h"
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#include "delay.h"# E. X& ]! G: I8 N3 f! R6 I% \: |: H
#include "key.h"
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#include "sys.h"+ `( ]# p2 ]! e# A8 a( P
#include "lcd.h"
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#include "lcd_init.h"7 b0 h+ y! O5 F0 w3 V" H8 n& U
#include "beep.h"& g1 R9 M7 N2 w& G+ i0 O1 Y
#include "time.h"+ ?% C' t2 Z4 C
#include "ds18b20.h"
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#include "adc.h"
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#include "bmp180.h"
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#include "iic.h", z9 k+ k3 o3 D' r% ~
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//外设层* `8 D3 ]- O* ^8 v" D3 u1 M o p
#include "oled.h") f( `6 w9 O, ?" ]: x% i' H. A! X+ J
#include "usart.h"
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#include "esp8266.h"- ]2 z) Y: B% K. J f5 K
//网络协议层
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#include "onenet.h"
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//网络设备# X( }* [) R% R6 N
#include "esp8266.h"
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//c库& i7 t! |1 F8 H4 i5 k
#include "string.h"/ e8 o* }4 g3 y: Z E9 A
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/*---------------------------------水质检测系统-----------------------------------*
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Author:slow-walker
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Date:2022-10-26
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功能：3 r/ u) M1 h& G
1.实时数据显示TFT屏 2.OneNet云平台数据显示（ESP8266远端传输） 3.ST-03T语音控制 4.按键调节
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----------------------------------------------------------------------------------*/
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/*--------------------------------------全局变量定义--------------------------------*/
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unsigned int set_time = 1; //设置刷新数据的频率默认500ms 1s 2s
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unsigned char time_flag = 0; //定时器开始标志
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unsigned char display_flag = 0; //刷新标志/ y$ T7 h' N& q5 l
float temper = 15.0; //温度数据变量; }+ j0 H2 ?9 o- Y
float max_temper = 40.0,min_temper = 0.0,PH_Set = 7.0; //温度设置阀值 0-50 默认为最大值2 {8 Q8 y3 J, ]. l
unsigned char key_value = 0,key = 0;) |: Z8 ?$ ] p
unsigned char Index = 0,flag_function = 0; //界面索引2 m5 |' K/ J; ?1 T; `3 @) ~1 G7 e
float ph, tds,p; //ph 浊度大气压
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unsigned char buzzer_flag = 0;//警报标志9 [/ T1 f: Y- r; A' z; K5 J
/*-------------------------------------界面显示函数---------------------------------*/( _- a- P: l1 [ V9 ?
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/*-------------------------------功能操作界面--------------------------*/
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void Init_Interface(void)
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static unsigned int i = 0;
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0);; z& J" d& @. s) h
LCD_ShowString(90,40,(unsigned char *)"Author:Slow-Walker",RED,GREEN,32,0);
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LCD_ShowString(110,80,(unsigned char *)"Date:2022-10-26",RED,GREEN,32,0);" {: u5 ~; p; H* d
LCD_ShowString(140,240,(unsigned char *)"WIFI",RED,GREEN,32,0);& z' x/ r3 w* ]6 o8 L, N( C
LCD_ShowChinese(220,240,(unsigned char *)"加载中",RED,GREEN,32,0);. r" m- H+ F9 X z ~
while(i*8 < 472) I& Z$ o* }- D M, c% y; r
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LCD_ShowString(i*8,280,(unsigned char *)".",RED, WHITE,32,0);* @4 ?, z0 s& a& j# C9 p7 W( B
delay_ms(50); 
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i++;* I$ T4 N% r* r9 ^' ]
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delay_ms(500);
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//LCD_ShowChinese(140,240,(unsigned char *)"加载成功",RED,GREEN,32,0); 
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//LCD_Init();# y* B2 J0 D! l1 b
}
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void Interface1(void)2 s/ l! h# u0 l/ W) r
{
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0);
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LCD_ShowChinese(150,120,(unsigned char *)"参数查看",RED,GREEN,32,0);' I' A/ ]) l0 K% Y9 T; z' T& a
LCD_ShowChinese(150,160,(unsigned char *)"参数设置",RED,GREEN,32,0);
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void Interface2(void)
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0);% D6 c* G" u, V& b" t$ J
LCD_ShowChinese(120,80,(unsigned char *)"温度阈值：",RED,GREEN,32,0);
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LCD_ShowFloatNum1(320,80,max_temper,4,RED,GREEN,32); 
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LCD_ShowChinese(120,120,(unsigned char *)"当前温度：",RED,GREEN,32,0);
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LCD_ShowFloatNum1(320,120,temper,4,RED,GREEN,32); 
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LCD_ShowChinese(120,160,(unsigned char *)"当前",RED,GREEN,32,0);
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LCD_ShowString(200,160,(unsigned char *)"PH",RED,GREEN,32,0);+ U6 H% a6 O$ N, h
LCD_ShowFloatNum1(320,160,ph,4,RED,GREEN,32); ; ^2 j" p1 t1 Q* w. F M
LCD_ShowChinese(120,200,(unsigned char *)"大气压值：",RED,GREEN,32,0);" |; w" E$ D- x" x0 t* E5 J
LCD_ShowIntNum(320,200,bmp180.p,6,RED,GREEN,32); 
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LCD_ShowChinese(120,240,(unsigned char *)"水电导率：",RED,GREEN,32,0);( z+ G. M7 i( x1 {; i, j
LCD_ShowFloatNum1(320,240,tds,6,RED,GREEN,32); % e8 W+ A# O/ ?# @ @
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void Interface3(void)8 R9 Z! n5 K% E; Z) _* U
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0);
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LCD_ShowChinese(120,80,(unsigned char *)"温度阈值",RED,GREEN,32,0);
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LCD_ShowFloatNum1(320,80,max_temper,4,RED,GREEN,32); 
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LCD_ShowString(120,120,(unsigned char *)"PH",RED,GREEN,32,0); . O8 m! k7 t+ H1 k, z
LCD_ShowChinese(200,120,(unsigned char *)"阈值",RED,GREEN,32,0);8 z5 \! c5 o* V7 e* e
LCD_ShowFloatNum1(320,120,PH_Set,4,RED,GREEN,32);' h! ` u0 c& d6 w3 l+ |3 t t
LCD_ShowChinese(120,160,(unsigned char *)"刷新频率：",RED,GREEN,32,0);
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LCD_ShowIntNum(320,160,set_time,1,RED,GREEN,32); 
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}
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void Interface4(void)1 p" x, M3 J7 k- z: {8 Y1 p6 p
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0);
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LCD_ShowChinese(120,120,(unsigned char *)"温度阈值",RED,GREEN,32,0);
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LCD_ShowFloatNum1(320,120,max_temper,4,RED,GREEN,32); 8 e, i, m8 Y. s% S
}
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void Interface5(void)3 `# ?3 M. B7 ~& `; u' S. T* S3 E1 [
{
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0); , _! v3 m1 ^) |- R
LCD_ShowString(120,120,(unsigned char *)"PH",RED,GREEN,32,0); 
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LCD_ShowChinese(200,120,(unsigned char *)"阈值",RED,GREEN,32,0);) g4 p' B5 [) w# X4 J6 E
LCD_ShowFloatNum1(320,120,PH_Set,4,RED,GREEN,32);
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}
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void Interface6(void)& {: V5 V* k) }3 U: H
{
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LCD_ShowChinese(80,0,(unsigned char *)"欢迎使用水质监测系统",RED,Q_BLUE,32,0);
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LCD_ShowChinese(120,120,(unsigned char *)"刷新频率：",RED,GREEN,32,0);$ ]( L6 b6 s+ X1 z3 j$ |
LCD_ShowIntNum(320,120,set_time,1,RED,GREEN,32); * O9 K1 Y. @4 a7 o: f/ q# W2 e3 P
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/*----------------------------------按键操作函数--------------------------------------*/
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unsigned char Key_Mode(void)
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{
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key_value = KEY_Scan(); //按键1来进行模式的切换' h! p% V2 s: H- m! c p( x
//按键每按一下蜂鸣器响200ms然后关掉按键提示音
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if(key_value)7 Z" f+ X& J( P; u9 ]3 F6 d% H
{
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LCD_Init(); 
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}
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if(key_value == 1) //判断按键1是否被按下) |+ i0 Q4 g9 F0 t
{ 
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Index++;
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BEEP_ON();6 c# L" Q& |6 m) g
delay_ms(200);
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BEEP_OFF();
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delay_ms(200);
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} 
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if(key_value == 2) //判断按键1是否被按下
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Index--;
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BEEP_ON();$ v' }1 L/ X- B+ N) P" s/ ^! Z0 b
delay_ms(200);4 |- ?% Q8 }; X: X, B7 Q; J/ j
BEEP_OFF();: u9 J' X. ]" \2 \& t
delay_ms(200);
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switch(Index)
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{ 
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case 1: Interface1();break;# @& e3 ~$ |* b: x8 ], W5 T
case 2: Interface2();break;
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case 3: Interface3();break;! m8 y/ P e' f) F) R: j+ P
case 4: Interface4();flag_function = 3;break;
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case 5: Interface5();flag_function = 4;break;* o& Q f6 B" ^( ]$ w
case 6: Interface6();flag_function = 5;break; 5 [" G/ G, m6 K0 b
default:break;6 S9 ]# V7 E, I1 D2 O, {
}
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key_value = 0;
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return flag_function; //返回功能函数的标志位5 x0 g5 r/ m) a7 C+ B( T3 i
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void Param_Set(void)
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{
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unsigned char keyvalue = 0;0 e" T/ |4 [$ S' E! ?4 L' a9 i
keyvalue = KEY_Scan(); //按键1来进行模式的切换
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//按键每按一下蜂鸣器响200ms然后关掉按键提示音9 a/ F& {# S- d. y5 _- l3 |
if(flag_function == 3) I* Q& N8 n1 L z6 d* N; E; e
{
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if(keyvalue == 3)
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{
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BEEP_ON();
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delay_ms(200);
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BEEP_OFF();
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max_temper += 2;
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if(max_temper >= 50)
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{
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max_temper = 50;$ T2 S, x0 V! ?
}
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}
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if(keyvalue == 4)
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BEEP_ON();/ O- \- U- w* I
delay_ms(200);
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BEEP_OFF();; B7 M" j. M M9 k: N$ q
max_temper -= 2;( Y( X* y4 h3 D/ P( Y0 n1 M9 [8 {
if(max_temper == 0)( q0 N& m+ v6 ~ `& [0 k( e
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max_temper = 0;
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} 
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}
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else if(flag_function == 4)9 c0 Q4 l7 e3 e- E
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if(keyvalue == 3)
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{
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BEEP_ON();
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delay_ms(200);4 @7 W% V( E; z9 B' y+ c* U
BEEP_OFF();
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PH_Set += 1;
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if(keyvalue == 4)& H) @! I4 G! O5 P& |
{
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BEEP_ON();6 B; H* t0 h7 b! L" L* w! G m8 W0 m
delay_ms(200);
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BEEP_OFF();. l8 O6 s/ J, N4 F
PH_Set -= 1;
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else if(flag_function == 5)
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{
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if(keyvalue == 3)
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{
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BEEP_ON();
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delay_ms(200);: B/ ~& y2 P0 _0 @% P
BEEP_OFF();
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set_time += 1;
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if(set_time > 3)- n: ^) B" _& K5 |8 t
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set_time = 3;
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}
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if(keyvalue == 4)' Y6 x1 _% }- ^9 `4 v2 J
{
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BEEP_ON();" H& E0 H1 l% T. |. X9 }4 R
delay_ms(200);
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BEEP_OFF();! A; b2 m/ b \' n1 J; O
set_time -= 1;8 X- S; [! E+ _) A5 W9 R( ?. ?# P
if(set_time == 1)0 W! |5 }% ]3 @
{
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set_time = 1;8 z) R3 ]6 w9 o: @6 p
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}
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flag_function = 0;& D3 h/ K7 A6 b& M$ X2 @
keyvalue = 0;. G5 i2 ?+ t1 s. \) E* N# d
}
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/*-------------------------------------主函数-----------------------------------------*/& v; i, Y2 U/ ~- E& L
int main(void) K$ y* K0 j+ l1 X6 X; ]8 P9 K% u
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unsigned char *dataPtr = NULL;5 c8 V7 g4 x& |0 j
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unsigned short timeCount = 0; //发送间隔变量
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delay_init(); //延时函数初始化 1 {, C$ n/ w" D) k! W5 f* j
NVIC_Configuration(); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级- r8 a7 z' M) n
Led_Init(); //LED端口初始化. {$ J" E: ~ C/ [
Adc_Init(); //adc初始化
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KEY_Init(); //按键初始化. d/ n, {8 I4 t% p) [
Beep_Init(); //蜂鸣器初始化
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Time_Init(); //定时器2初始化
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DS18B20_Init();+ U& \+ Z; P6 \. _4 X+ Z. V6 J$ X
BMP_Init();
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BMP_ReadCalibrationData(); 1 n. I. h3 L* R: p3 ^8 ?
delay_ms(50);% V- F! m4 H2 h
uart_init(9600);//串口1初始化
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uart3_init(115200); //串口3初始化8 K5 F1 q; t( r! E0 Z- ` z
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LCD_Init(); //LCD初始化 w. s4 H& u0 b% M; @1 U4 {
LCD_Fill(0,0,LCD_W,LCD_H,GREEN); //LCD屏颜色初始化 % I! \6 o% \# O& p0 s+ ]
Init_Interface(); //初始界面显示4 ~( F) Z# k0 t: B% {( j5 A
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ESP8266_Init(); //初始化ESP8266
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printf("8266_INIT_END\n"); 
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while(OneNet_DevLink()) //接入OneNET3 J. s% R2 u6 a# f: P8 Q
delay_ms(500);' n% p* g: B2 O7 J
printf("接入onenet成功");9 U( p: @0 U( y/ E+ @. O9 y
LCD_ShowString(140,240,(unsigned char *)"WIFI",RED,GREEN,32,0);
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LCD_ShowChinese(220,240,(unsigned char *)"加载成功",RED,GREEN,32,0); 
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delay_ms(500); 
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while(1) % p& m4 k8 F* d
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if(display_flag)% e m6 P! D$ a$ J, l- n, g
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display_flag = 0; 5 L8 F) f4 ^3 T. U+ x
temper = DS18B20_GetTemperture(); //读取温度0 b# {1 P2 t5 M. p7 e
Get_PH_and_TUR(); //获取PH这里没有读取浊度
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Get_TDS(); //TDS 水电导率
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BMP_UncompemstatedToTrue(); //大气压
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//测量的温度不在温度范围内进行蜂鸣器报警
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if( temper > max_temper)
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buzzer_flag = 1;; M# N9 {8 {8 _5 D
BEEP_ON();) e5 h( ]/ p. s- t
delay_ms(300); |7 G: ^0 V- W( P4 {$ T0 k
BEEP_OFF();4 u& N' C; i$ @ N$ B& m
delay_ms(300);
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else
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{
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buzzer_flag = 0;/ w9 v+ |. K$ j$ H5 d9 L# R! C7 s
BEEP_OFF(); 9 H* i9 h1 [2 s7 u! I# j
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//PH超出阈值后报警
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if( ph > PH_Set)9 K1 `' [: u7 k; f
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buzzer_flag = 1;' E. _, l; a, i, P! b
BEEP_ON();8 b; g2 k& k8 A
delay_ms(300);
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BEEP_OFF();- b4 V2 k @2 R" E" T+ L6 T
delay_ms(300);8 y- x1 ^# F1 r7 R6 t$ k5 n
}
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else
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buzzer_flag = 0;/ Q+ ^! \! U( i3 t
BEEP_OFF(); 
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// 
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//printf("PH = %.1f TDS = %.2f Temper = %.2f Press:%ld\r\n",ph,tds,temper,bmp180.p);
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//delay_ms(200);& u% x" e+ ~8 t3 Y& {
//key = Key_Mode();. o! D% T" Z- o1 r& x) f
// printf( "OneNet_SendData\r\n");//通过串口1发送提示信息（要开始发送数据了） . S5 X+ e4 S. W. ~9 F9 N
OneNet_SendData();//发送数据给onenet 6 I/ u- V: ]5 V* J) e
// printf("send_data_end\n");; I' i& v( M' }+ e
delay_ms(100); 
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ESP8266_Clear(); ( x% _/ y, @( Z7 d
dataPtr = ESP8266_GetIPD(0);//获取平台返回的数据
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if(dataPtr != NULL)//如果返回数据不为空) q# A: v9 T, r
OneNet_RevPro(dataPtr);//平台返回数据检测 
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delay_ms(100); 
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/*-----------------------100ms定时器中断处理---------------------*/
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void TIM2_IRQHandler(void) //TIM2 中断
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static unsigned char count = 0,t = 0;# b3 w! _/ H1 \: m0 F7 G
if(TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) //检查 TIM2 更新中断发生与否
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{
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count++;
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t++;: ~8 ]& F) }7 X% w3 b
if(count >= set_time) //set_time 通过按键来改变: ~% K5 _2 C1 i% B
{
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display_flag = 1;
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count = 0; //计数清零
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}
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if(t == 10)0 }/ } O5 g5 F1 \: L" E) _
{
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Key_Mode();/ N2 v+ P" d) U# V" C- _1 a- `% L
Param_Set();. Y& ~2 P3 F: M9 A- v1 I8 \: ^$ G
t = 0;9 Z2 |( z! c9 H
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TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //清除 TIM2 更新中断标志
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/*-------------------------------串口中断服务函数-------------------------*/
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void USART1_IRQHandler(void); u$ }% B1 l& P2 M' E/ w& K( E% \
{
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char cmd = 0,Alarm = 0;
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if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //接收中断5 S1 t' S% o6 X3 N
{
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cmd = USART_ReceiveData(USART1);& |$ o% N; J; w
//printf("%c",cmd);
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if(cmd == 0xAA)
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{
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max_temper++;
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}
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else if(cmd == 0xBB)
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{
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max_temper--;! ~; y* D8 H1 g, p9 H
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else if(cmd == 0xCC)
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{
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PH_Set++;. v. ?/ L: g9 @/ J. @6 g" V
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else if(cmd == 0**)6 c, F# U) f% l/ @& I! s$ q# S) Z
{
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PH_Set--;
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}
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else if(cmd == 0xEE)- B8 k ]2 k3 f
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for(Alarm =0;Alarm<8;Alarm++)0 p& t/ d9 {6 [
{
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BEEP_ON();
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delay_ms(300);
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BEEP_OFF();
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delay_ms(300); ~; @& X3 l- [- f/ W
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}
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else if(cmd == 0xFF)
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//Alarm = 0;4 `3 i% S! n1 v, P, S+ o" x
BEEP_OFF();
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else if(cmd == 0xCD)% J# w# `7 m: z5 ~; O* ^9 x
{
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set_time = 1; //500ms
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} 
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else if(cmd == 0xDE)
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set_time = 2;//2s) y! E* r$ G1 ?' n; K2 F, U+ R
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else if(cmd == 0xEF). |" E& e* z3 ]4 g
{
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set_time = 3; //3.5s
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} 
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USART_ClearFlag(USART1, USART_FLAG_RXNE);
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}
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}