DIY低成本激光+霍尔转速计 [已开源] - 数码之家

#include "common.h"
#include "Arduino.h"
#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>
#include "OneButton.h"
// #include "DS_Digital12pt7b.h"
// #include "DS_Digital18pt7b.h"
// #include "Fonts/FreeSerifBold18pt7b.h"
// #include "Fonts/FreeSerifBold12pt7b.h"
// LCD
SPIClass SPI_2(LCD_MOSI,LCD_MISO,LCD_SCK,-1);
Adafruit_ST7735 tft = Adafruit_ST7735(&SPI_2,LCD_CS, LCD_DC, LCD_RES);
//key
OneButton btnPower(POWER_S, true);
OneButton btn2(KEY2,true);
OneButton btn3(KEY3,true);
#define UPPER_LIMIT 999999
// MENU
//菜单选项，取值123，切换菜单是设置为对应负值
signed char menu=-1;
#define menuRPM 1
#define menuCTR 2
#define menuIR 3
//是否激光模式 true激光 false霍尔
bool isLD=true;
//是否启动
bool isStart=false;
//计数器计数统计
unsigned long count = 0;
//频率计记录上次触发时间
unsigned long lastTime = 0;
//频率计触发间隔,用于计算频率
long delayTime = 0;
float rps = 0.0;
float rpsMax= 0.0;
bool isBtn2Click=false;
bool isBtn3Click=false;
//计数器模式启动时间
int startTime = 0;
long runningTime;
void pulseInterrupt() {
long micro=micros();
delayTime=micro-lastTime;
lastTime=micro;
count++;
}
//GPIO初始化
void initPin(){
pinMode(POWER_C,OUTPUT);
pinMode(POWER_S,INPUT_PULLUP);
pinMode(KEY2,INPUT_PULLUP);
pinMode(KEY3,INPUT_PULLUP);
pinMode(LD_CTRL, OUTPUT);
pinMode(SIGNAL,INPUT_PULLUP);
pinMode(LD_POWER,OUTPUT);
pinMode(HL_POWER,OUTPUT);
pinMode(LCD_BLK,OUTPUT);
pinMode(BAT_ADC,INPUT);
digitalWrite(POWER_C,LOW);
digitalWrite(LD_CTRL,LOW);
digitalWrite(LD_POWER, LOW);
digitalWrite(HL_POWER, HIGH);
digitalWrite(LCD_BLK, LOW);
}
//电源键单击
void btnPowerClick(){
menu++;
if(menu>3)
menu=1;
menu=-menu;
}
//电源键长按
void btnPowerLongPress(){
powerOff();
}
void btn2Click(){
isBtn2Click=true;
}
void btn3Click(){
isBtn3Click=true;
}
//屏幕初始化
void initLCD(){
// INITR_GREENTAB
// INITR_144GREENTAB
// INITR_HALLOWING
// INITR_MINI160x80
// INITR_MINI160x80_PLUGIN
// INITR_BLACKTAB
// INITR_HALLOWING
// tft.initR(INITR_MINI160x80_PLUGIN);
tft.initR(INITR_MINI160x80_PLUGIN);
// tft.setTextWrap(true);
tft.setFont(NULL);
tft.setRotation(1);
tft.fillScreen(ST7735_BLACK);
digitalWrite(LCD_BLK,HIGH);
}
//开机
void powerOn(){
digitalWrite(POWER_C,HIGH);
}
//关机
void powerOff(){
digitalWrite(POWER_C,LOW);
}
void startLD(){
digitalWrite(LD_CTRL,HIGH);
digitalWrite(LD_POWER,LOW);
attachInterrupt(digitalPinToInterrupt(SIGNAL), pulseInterrupt, FALLING); // 下降沿触发
}
void stopLD(){
digitalWrite(LD_CTRL,LOW);
digitalWrite(LD_POWER,HIGH);
detachInterrupt(digitalPinToInterrupt(SIGNAL));
}
void startHALL(){
digitalWrite(HL_POWER,LOW);
attachInterrupt(digitalPinToInterrupt(SIGNAL), pulseInterrupt, FALLING); // 下降沿触发
}
void stopHALL(){
digitalWrite(HL_POWER,HIGH);
detachInterrupt(digitalPinToInterrupt(SIGNAL));
}
void stop(int menu){
isStart=false;
stopLD();
stopHALL();
}
// 刷新电池图标
void refreshBat(){
int analogValue = analogRead(BAT_ADC);
int endX=156;
int length=24;
// 4.15(643)满格 3.5(543)没电
int max=643;
int min=543;
float step=(max-min)/length;
step=(analogValue-min)/step;
if(step<0)
step=0;
else if(step>length)
step=length;
length=round(step);
//电池头
tft.fillRect(130,7,2,10,ST7735_WHITE);
//电池体外壳
tft.drawRect(132,4,26,16,ST7735_WHITE);
//清空
tft.fillRect(133,5,24,14,ST7735_BLACK);
//电量
tft.fillRect(endX-length+1,5,length,14,ST7735_GREEN);
}
//菜单切换
void switchMenu (int menu){
tft.fillScreen(ST7735_BLACK);
tft.fillRect(0,0,120,24,ST7735_BLACK);
tft.drawRect(0,0,41,24,ST7735_GREEN);
tft.drawRect(40,0,41,24,ST7735_GREEN);
tft.drawRect(80,0,41,24,ST7735_GREEN);
tft.fillRect((menu-1)*40,0,41,24,ST7735_GREEN);
// tft.setFont(&FreeSerifBold12pt7b);
tft.setTextSize(2);
tft.setTextColor(menu==1?ST7735_RED:ST7735_GREEN);
tft.setCursor(3,5);
tft.print("RPM");
tft.setTextColor(menu==2?ST7735_RED:ST7735_GREEN);
tft.setCursor(43,5);
tft.print("CTR");
tft.setTextColor(menu==3?ST7735_RED:ST7735_GREEN);
tft.setCursor(88,5);
tft.print("IR");
tft.fillRect(0,25,160,55,ST7735_BLACK);
}
//刷新RPM界面
void refreshRPM(){
float rps;
char buffer[7]; // 6位数字 + 1位字符串结束符 '\0'
long lRps; // 四舍五入取整
long ms=millis();
//micro时钟溢出或者第一次统计,不计算
if(delayTime>0){
rps=1000000.0/delayTime;
if((rps*60)<6)
rps=0;
}
//最低频率限制 6rpm,小于6rpm时为0
if((lastTime/1000+1000*10)<ms)
rps=0;
if(rpsMax<rps)
rpsMax=rps;
if(!isStart){
rps=rpsMax;
}
// tft.setFont(&FreeSerifBold12pt7b);
tft.setTextSize(2);
tft.setTextColor(ST7735_YELLOW,ST7735_BLACK);
tft.setCursor(0,40);
if(isStart)
tft.print("RPM:");
else
tft.print("MAX:");
tft.setTextColor(ST7735_MAGENTA,ST7735_BLACK);
tft.setCursor(0,65);
tft.print("RPS:");
tft.setTextColor(ST7735_MAGENTA,ST7735_BLACK);
tft.setCursor(52,65);
lRps= (long)round(rps);
sprintf(buffer, "%05d", lRps);
// tft.fillRect(45, 60, 115, 20, ST7735_BLACK);
tft.print(buffer);
// tft.setFont(&FreeSerifBold18pt7b);
tft.setTextSize(3);
tft.setCursor(52,35);
lRps= (long)round(rps*60);
//上限999999,超过999999显示999999红色
tft.setTextColor(lRps<UPPER_LIMIT?ST7735_YELLOW:ST7735_RED,ST7735_BLACK);
if(lRps>UPPER_LIMIT){
lRps=UPPER_LIMIT;
}
sprintf(buffer, "%06d", lRps);
// tft.fillRect(45, 30, 115, 30, ST7735_BLACK);
tft.print(buffer);
tft.setTextSize(2);
tft.setTextColor(isStart?ST7735_GREEN:ST7735_RED,ST7735_BLACK);
tft.setCursor(135,65);
tft.print(isLD?"LD":"HL");
}
void refreshCTR(){
if(isStart){
runningTime=millis()/1000-startTime/1000;
}
char buffer[9]; // 6位数字 + 1位字符串结束符 '\0'
tft.setTextSize(2);
tft.setTextColor(ST7735_YELLOW,ST7735_BLACK);
tft.setCursor(0,40);
tft.print("CTR:");
int hours = runningTime / 3600;
int remainingSeconds = runningTime % 3600;
int minutes = remainingSeconds / 60;
int seconds = remainingSeconds % 60;
sprintf(buffer, "%02d:%02d:%02d", hours, minutes, seconds);
tft.setTextColor(ST7735_MAGENTA,ST7735_BLACK);
tft.setCursor(0,65);
tft.print(buffer);
tft.setTextSize(3);
tft.setTextColor(ST7735_YELLOW,ST7735_BLACK);
tft.setTextColor(count<UPPER_LIMIT?ST7735_YELLOW:ST7735_RED,ST7735_BLACK);
tft.setCursor(52,35);
sprintf(buffer, "%06d", count<UPPER_LIMIT?count:UPPER_LIMIT);
tft.print(buffer);
tft.setTextSize(2);
tft.setTextColor(isStart?ST7735_GREEN:ST7735_RED,ST7735_BLACK);
tft.setCursor(135,65);
tft.print(isLD?"LD":"HL");
}
void btnHandler(){
//菜单切换
if(menu<0){
menu=-menu;
switchMenu(menu);
isStart=false;
stop(menu);
switch(menu){
case 1:
rps=0;
delayTime=100000000;
rpsMax=0;
break;
case 2:
count=0;
startTime=millis();
runningTime=0;
}
}
//RPM页面按键处理
if(menu==1){
if(isBtn2Click){
isBtn2Click=false;
isLD=!isLD;
}
if(isBtn3Click){
isBtn3Click=false;
isStart=!isStart;
if(isStart){
rps=0;
rpsMax=0;
if(isLD)
startLD();
else
startHALL();
}else{
stop(menu);
}
}
//CTR页面按键处理
}else if(menu==2){
if(isBtn2Click){
isBtn2Click=false;
isLD=!isLD;
}
if(isBtn3Click){
isBtn3Click=false;
isStart=!isStart;
if(isStart){
count=0;
startTime=millis();
if(isLD)
startLD();
else
startHALL();
}else{
stop(menu);
}
}
}
else if(menu==3){
}
}
void setup() {
Serial.setTx(SERIAL_TX);
Serial.setRx(SERIAL_RX);
Serial.begin(115200);
initPin();
delay(800);
powerOn();
initLCD();
btnPower.attachClick(btnPowerClick);
btnPower.attachLongPressStart(btnPowerLongPress);
btn2.attachClick(btn2Click);
btn3.attachClick(btn3Click);
}
long refreshTime;
// the loop function runs over and over again forever
void loop() {
long ms=millis();
//屏幕刷新
if((ms-refreshTime)>200){
refreshTime=ms;
refreshBat();
if(menu==1)
refreshRPM();
else if (menu==2){
refreshCTR();
}
}
//按键tick
btnPower.tick();
btn2.tick();
btn3.tick();
//按键处理
btnHandler();
}

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