標(biāo)題: INA226-USB電壓電流表 功率計程序 [打印本頁]
作者: lianggeren2222    時間: 2023-9-14 15:25
標(biāo)題: INA226-USB電壓電流表 功率計程序
INA226-USB電壓電流表   設(shè)計可行性資料，親測可用

  1. /*
  2. 程序完善中，我自己本身也沒學(xué)過C/C++，完全就是靠感覺寫的代碼，若有BUG屬正�，F(xiàn)象
  3. V1.0版本視頻鏈接https://www.bilibili.com/video/BV1Ev411k7jA
  4. V3.0版本視頻鏈接https://www.bilibili.com/video/BV1Ea411w7dj
  5. V5.0版本視頻鏈接https://www.bilibili.com/video/BV11a411F7mX

  7. 自2020.12.9開始記錄更新歷史

  9. 2020.12.9-----添加低電流關(guān)閉屏幕按鍵代碼并掉電保存狀態(tài)
  10. 2020.12.24----平安夜快樂！優(yōu)化三個按鍵EEPROM保存部分代碼，避免新的328P芯片第一次上電EEPROM數(shù)據(jù)問題
  11. */


  14. #include <Wire.h>
  15. #include <INA226.h>
  16. #include <Adafruit_SSD1306.h>
  17. #include <EEPROM.h>

  19. #define SCREEN_WIDTH 128
  20. #define SCREEN_HEIGHT 32
  21. #define OLED_RESET    -1
  22. Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

  24. #define NUMFLAKES

  26. static const uint8_t PROGMEM qidong[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0E,0x00,0x00,0x00,0xE0,0x00,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x02,0x00,0xE0,0x00,0x03,0x00,0x00,0x03,0x80,0xE0,0x3E,0x0F,0xE0,0x00,0x0C,0x00,0x07,0x00,0x60,0x00,0x03,0x00,0x00,0x03,0x80,0xE0,0xFF,0x0F,0xF8,0x00,0x0C,0x00,0x03,0xFF,0xFF,0x87,0xFF,0xFF,0x80,0x03,0x80,0xE1,0xC1,0x0E,0x3C,0x0F,0xFF,0xF8,0x01,0xBF,0xFF,0x87,0xFF,0xFF,0x80,0x03,0x80,0xE3,0x80,0x0E,0x0E,0x0F,0xFF,0xF8,0x00,0x81,0x00,0x00,0x03,0x00,0x00,0x03,0x80,0xE3,0x80,0x0E,0x0E,0x0C,0x0C,0x18,0x00,0x03,0x98,0x00,0x03,0x00,0x00,0x03,0x80,0xE3,0x80,0x0E,0x0E,0x0C,0x0C,0x18,0x0C,0x06,0x0C,0x01,0xFF,0xFF,0x00,0x03,0x80,0xE3,0xC0,0x0E,0x0C,0x0C,0x0C,0x18,0x0F,0xAC,0x1E,0x01,0xFF,0xFF,0x00,0x03,0x80,0xE1,0xE0,0x0E,0x1C,0x0F,0xFF,0xF8,0x03,0x1F,0xFF,0x80,0x03,0x00,0x00,0x03,0x80,0xE0,0xF8,0x0F,0xF8,0x0F,0xFF,0xF8,0x01,0x1C,0x01,0x0F,0xFF,0xFF,0xC0,0x03,0x80,0xE0,0x7E,0x0F,0xFC,0x0C,0x0C,0x18,0x00,0x00,0x08,0x0F,0xFF,0xFF,0xC0,0x03,0x80,0xE0,0x1F,0x0E,0x1E,0x0C,0x0C,0x18,0x00,0x0C,0xCC,0x00,0x0E,0x00,0x00,0x03,0x80,0xE0,0x07,0x0E,0x0F,0x0C,0x0C,0x18,0x01,0x0C,0xCC,0x00,0x1D,0x82,0x00,0x03,0x80,0xE0,0x03,0x8E,0x07,0x0F,0xFF,0xF8,0x03,0x8C,0xCC,0x00,0x39,0x87,0x80,0x03,0x80,0xE0,0x03,0x8E,0x07,0x0F,0xFF,0xF8,0x03,0x0C,0xCC,0x00,0x70,0xCE,0x00,0x03,0x80,0xC0,0x03,0x8E,0x07,0x0C,0x0C,0x18,0x03,0x0C,0xCC,0x01,0xF0,0xF8,0x00,0x01,0xC1,0xC0,0x03,0x8E,0x0E,0x0C,0x0C,0x02,0x07,0x0C,0xCC,0x0F,0xB0,0x70,0x00,0x01,0xE3,0x83,0x0F,0x0E,0x1E,0x00,0x0C,0x01,0x86,0x18,0xCC,0x87,0x30,0x38,0x00,0x00,0xFF,0x03,0xFE,0x0F,0xFC,0x00,0x0C,0x03,0x8E,0x38,0xCC,0xC4,0x31,0x1E,0x00,0x00,0x3C,0x00,0xF8,0x0F,0xE0,0x00,0x0F,0xFF,0x0E,0xF0,0xCF,0xC0,0x3F,0x0F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xFE,0x02,0x60,0xCF,0x80,0x7E,0x03,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,};

  28. INA226 ina;

  30. unsigned long previousMillis = 0;
  31. unsigned long interval = 50;
  32. float shuntvoltage = 0;
  33. float busvoltage = 0;
  34. float current_mA = 0;
  35. float loadvoltage = 0;
  36. int SECONDS;
  37. int MINUTES;
  38. int HOURS;
  39. char flag1=1;
  40. char flag2=1;
  41. char flag3=1;
  42. bool temp1=0;
  43. bool temp2=0;
  44. double lasttime;
  45. double mah = 0;
  46. double mwh = 0;
  47. bool screen = 1;
  48. double screentime;
  49. bool state = 0;
  50. int page = 0;
  51. bool eeprom = 0;
  52. bool AlwayOn =0;

  54. int ShuaXinShiJian = 0;


  57. void setup() {
  58.   int value;
  59.   int address = 0;
  60. //  EEPROM.get(512,value);
  61.   value = EEPROM.read(512);
  62.     if (value ==255){
  63.       Serial.print(value);Serial.println("test");
  64.       while(address<=512)
  65.     {
  66.       EEPROM.write(address,0);
  67.       address++;
  68.     }
  69.   }
  70.   
  71.   display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false, false);
  72.   EEPROM.get(0,temp1);
  73.   EEPROM.get(2,temp2);
  74.   EEPROM.get(4,AlwayOn);
  75.   
  76.   pinMode(A0,INPUT);
  77.   pinMode(A1,INPUT);

  79. //********************啟動畫面***********************
  80.   setContrast (&display, 0);
  81.   display.clearDisplay();
  82.   display.drawBitmap(0,0,qidong,128,62,WHITE);
  83.   display.drawRect(0,0,128,32,WHITE);
  84.   display.display();
  85.   delay(1000);

  87. //**************************************************
  88.   Serial.begin(115200);

  90.   ina.begin();

  92.   ina.configure(INA226_AVERAGES_1, INA226_BUS_CONV_TIME_1100US, INA226_SHUNT_CONV_TIME_1100US, INA226_MODE_SHUNT_BUS_CONT);

  94.   ina.calibrate(0.01, 4);

  96.   ina.enableOverPowerLimitAlert();
  97.   ina.setPowerLimit(0.130);
  98.   ina.setAlertLatch(true);
  99. }

  101. //--------------主循環(huán)函數(shù)----------------
  102. void loop() {

  104.   unsigned long currentMillis = millis();
  105.   if (currentMillis - previousMillis >= interval)
  106.   {
  107.     previousMillis = currentMillis;
  108.     ina226values();
  109.     displaydata();
  110. }

  112.   SECONDS = (millis () / 1000) % 60;
  113.   MINUTES = (millis () / 1000) % 3600/60;
  114.   HOURS = (millis () / 1000) % (24*3600)/3600;

  116.   setbright();      
  117.   Page();
  118.   SAOn();
  119.   if (AlwayOn){
  120.     screenstate();
  121.   }



  125. //  Serial.print("     ");
  126. //  Serial.print(millis() - screentime);
  127. //  Serial.print("     ");
  128. //  Serial.print(current_mA);
  129. //  Serial.print("     ");
  130. //  Serial.print(screen);
  131. //  Serial.print("     ");
  132. //  Serial.println(state);
  133. //  Serial.println("     ");
  134.   
  135. }

  137. //-------------------屏幕顯示部分------------------
  138. void displaydata() {
  139.   if (screen){

  141.   display.clearDisplay();
  142.   display.setTextSize(2);
  143.   display.setTextColor(SSD1306_WHITE);

  145. if (loadvoltage < 10){
  146.   display.setCursor(0,0);
  147.   display.print(loadvoltage ,3);
  148.   display.println("V");
  149. }
  150. else {
  151.   display.setCursor(0,0);
  152.   display.print(loadvoltage);
  153.   display.println("V");
  154. }
  155.   
  156.   display.setCursor(0, 18);
  157.   display.print(current_mA / 1000,3);
  158.   display.println("A");


  161.   display.setTextSize(1);
  162.   display.setTextColor(SSD1306_WHITE);
  163.   
  164.   display.setCursor(74, 0);
  165.   display.print(loadvoltage * current_mA / 1000,4);
  166.   display.println("W");

  168.   if (!AlwayOn){
  169.     display.drawLine(0,15,69,15,WHITE);
  170.   }

  172. //———————————————————————————————

  174.   if (page==0){
  175.     if (mah < 100){
  176.     display.setCursor(74, 8);
  177.     display.print(mah,2);
  178.     display.println("mAh");
  179.     }
  180.     else if (mah < 1000){
  181.     display.setCursor(74, 8);
  182.     display.print(mah,1);
  183.     display.println("mAh");
  184.     }
  185.     else {
  186.     display.setCursor(74, 8);
  187.     display.print(mah / 1000,3);
  188.     display.println("Ah");
  189.     }
  190.   
  191.   
  192.     if (mwh < 100){
  193.     display.setCursor(74, 16);
  194.     display.print(mwh,2);
  195.     display.println("mWh");
  196.     }
  197.       else if (mwh < 1000){
  198.     display.setCursor(74, 16);
  199.     display.print(mwh ,1);
  200.     display.println("mWh");
  201.       }
  202.       else {
  203.     display.setCursor(74, 16);
  204.     display.print(mwh / 1000 ,3);
  205.     display.println("Wh");
  206.       }
  207.   }
  208.   else {
  209.     display.setCursor(74, 8);
  210.     display.print("D+:");
  211.     int V1 = analogRead(A0);               
  212.     float vol1 = V1*(3.966 / 1023.0);
  213.     display.print(vol1);
  214.     display.println("V");
  215.     Serial.println(digitalRead(A0));

  217.     display.setCursor(74, 16);
  218.     display.print("D-:");
  219.     int V2 = analogRead(A1);               
  220.     float vol2 = V2*(3.966 / 1023.0);
  221.     display.print(vol2);
  222.     display.println("V");
  223.   }

  225. //----------------運行時間顯示----------------

  227.   display.setCursor(74, 24);
  228.   
  229.   if (HOURS < 10){
  230.     display.print("0");
  231.     display.print(HOURS);
  232.     }
  233.     else{display.print(HOURS);}
  234.     display.print(":");
  235.   if (MINUTES < 10){
  236.     display.print("0");
  237.     display.print(MINUTES);
  238.     }
  239.     else{display.print(MINUTES);}
  240.     display.print(":");
  241.   if (SECONDS < 10){
  242.     display.print("0");
  243.     display.print(SECONDS);
  244.     }
  245.     else{display.print(SECONDS);}
  246.   
  247.   
  248.     display.display();
  249.   
  250.     }
  251.     else {
  252.     display.clearDisplay();
  253.     display.display();
  254.     }
  255. }

  257. //--------------------數(shù)據(jù)計算---------------------

  259. void ina226values() {
  260.   shuntvoltage = ina.readShuntVoltage();
  261.   busvoltage = ina.readBusVoltage();
  262.   current_mA = ina.readShuntCurrent() * 1000;
  263.   loadvoltage = busvoltage + (shuntvoltage / 1000);

  265.     if (loadvoltage < 0){
  266.     loadvoltage = - loadvoltage;
  267.   }
  268.   if (current_mA < 0){
  269.     current_mA = -current_mA;
  270.   }

  272.   if (millis() - lasttime >= 500 ){

  274.   if ((current_mA >= 5)){
  275.     mah = mah + (current_mA * ((millis() - lasttime)) / 1000)/3600;
  276.     mwh = mwh +(loadvoltage * ((current_mA * ((millis() - lasttime)) / 1000)/3600));
  277.     lasttime = millis();
  278.    
  279.     }
  280.   }
  281. }



  285. void setContrast(Adafruit_SSD1306 *display, uint8_t contrast) {
  286.     display->ssd1306_command(SSD1306_SETCONTRAST);
  287.     display->ssd1306_command(contrast);
  288. }


  291. //---------------屏幕亮度按鍵控制--------------

  293. void setbright(){
  294.   if(digitalRead(8)==0&&flag1==1)
  295.   {
  296.     delay(5);flag1=0;
  297.     if(digitalRead(8)==0){
  298.     temp1=!temp1;
  299.     EEPROM.put(0,temp1);
  300.     }
  301.   }
  302.   else if(digitalRead(8)==1){
  303.   flag1=1;
  304.   }
  305.   switch (temp1){
  306.     case 1:setContrast (&display, 255);break;
  307.     case 0:setContrast (&display, 0);break;
  308.   }
  309. }

  311. //-----------------頁面切換------------------
  312. void Page(){
  313.   if(digitalRead(9)==0&&flag2==1)
  314.   {
  315.     delay(5);flag2=0;
  316.     if(digitalRead(9)==0){
  317.     temp2=!temp2;
  318.     EEPROM.put(2,temp2);
  319.     }
  320.   }
  321.   else if(digitalRead(9)==1){
  322.   flag2=1;
  323.   }
  324.   switch (temp2){
  325.     case 0:page=0;break;
  326.     case 1:page=1;break;
  327.   }
  328. }
  329. //-------------按鍵切換是否開啟低電流屏幕保護(hù)-------------
  330. void SAOn(){
  331.   if(digitalRead(10)==0&&flag3==1)
  332.   {
  333.     delay(5);flag3=0;
  334.     if(digitalRead(10)==0){
  335.     AlwayOn=!AlwayOn;
  336.     screen = 1;
  337.     screentime = millis();
  338.     EEPROM.put(4,AlwayOn);
  339.     }
  340.   }
  341.   else if(digitalRead(10)==1){
  342.     flag3=1;
  343.   }
  344.   switch (AlwayOn){
  345.     case 0:;break;
  346.     case 1:;break;
  347.   }
  348. }
  349. //-------------電流低于5mA  5s后關(guān)閉屏幕-------------
  350. void screenstate(){
  351.   if (current_mA <= 5){
  352.     if (millis() - screentime > 5000){
  353.       screen = 0;
  354.     }
  355.     if (state){
  356.     screentime = millis();
  357.     state = 0;
  358.     }
  359.     if (millis() - screentime < 5000){
  360.       screen = 1;
  361.     }
  362.   }
  363.   else {
  364.     screen = 1;
  365.     state = 1;
  366.   }
  367. }
復(fù)制代碼


作者: 人工置頂員    時間: 2024-10-23 04:13
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