Testador de Baterias Givaldo Ceita

#include <Time.h> #include <LiquidCrystal.h> #include <Wire.h> #define V_LOAD_PIN A0 #define R_LOAD 5.5 #define FINAL_VOLTAGE 0.2 LiquidCrystal lcd(12, 11, 5, 4, 3, 2); float joules = 0; float voltage = 0; float temp = 0; uint8_t hours = 0; uint8_t mins = 0; uint8_t lastSecond; bool batteryAttached = false; bool testComplete = false; bool Bexecutado = false; time_t startTime = 0; void setup() { Serial.begin(9600); pinMode(V_LOAD_PIN, INPUT); lcd.begin(16, 2); // INICIO PARTE DO CODIGO B // lcd.print("2009 VlxsLAB"); delay(1000); lcd.clear(); // FIM PARTE DO CODIGO B /// lcd.print(" Attach Battery"); lcd.setCursor(0, 1); lcd.print(" to begin test"); time_t t = now(); lastSecond = second(t); } void loop() { voltage = 5.0 * ((float) analogRead(V_LOAD_PIN)) / 1024.0; if (voltage < 0.03) { batteryAttached=false; Bexecutado=false; lcd.clear(); lcd.setCursor(0, 0); //Print in the first line: lcd.print("Sem baterias"); } if (batteryAttached) { if (!Bexecutado) { // INICIO DO CODIGO B/// lcd.clear(); lcd.setCursor(0, 0); //Print in the first line: lcd.print("Testador Bateria"); lcd.setCursor(0, 1); //Now in the second line lcd.print(analogRead(0)*5.00/1023.00); //we print the voltage lcd.print("V =>"); lcd.setCursor(9,1); if ((analogRead(0)*5.00/1023.00) > 1.40) //And choose what is the battery status { lcd.print("Prefeito"); } else if ((analogRead(0)*5.00/1023.00) > 1.20) { lcd.print("Bom"); } else if ((analogRead(0)*5.00/1023.00) > 1.20) { lcd.print("Fraca"); } else if ((analogRead(0)*5.00/1023.00) > 0.30) { lcd.print("Muito Fraca"); } else { lcd.print(""); } delay(3000); //Troquei o tempo de espera no delay para visualizar antes de comecar o teste Bexecutado=true; // FIM DO CODIGO B // } if (testComplete) { updateDisplay(); } else { time_t t = now()-startTime; uint8_t sec = second(t); if (sec != lastSecond) { lastSecond = sec; hours = hour(t); mins = minute(t); voltage = 5.0 * ((float) analogRead(V_LOAD_PIN)) / 1023.0; float current = voltage / R_LOAD; joules += voltage * current; int val = analogRead(A1); float voltagetemp = (val) * 5; voltagetemp /= 1024.0; temp = (voltagetemp - 0.5) * 10 ; updateDisplay(); Serial.print(t); Serial.print(","); Serial.print(voltage); Serial.print(","); Serial.print(current); Serial.print(","); Serial.print(joules); Serial.print(","); Serial.print(temp); Serial.println(); if (voltage < FINAL_VOLTAGE) { testComplete = true; } } } } else { voltage = 5.0 * ((float) analogRead(V_LOAD_PIN)) / 1024.0; if (voltage > 0.02) { startTime = now(); batteryAttached = true; Serial.println("time,voltage,current,joules,temp"); } } } // Update the LCD with the following format: // // +----------------+ // |99999.9J 99.99Wh| // |9.99V 99^C 59:59| // +----------------+ void updateDisplay() { char row[32]; memset(row, 0, 17); float wattHours = joules / 3600; if (joules < 9999) fmtDouble(joules, 2, &row[0], 8); else fmtDouble(joules, 1, &row[0], 8); strcat(row, "J"); char whStr[9]; fmtDouble(wattHours, 2, whStr, sizeof(whStr)); sprintf(&row[9], "%5sWh", whStr); for (int i=0;i<16;i++) if (row[i] == 0) row[i] = ' '; lcd.setCursor(0, 0); lcd.print(row); if (testComplete) { lcd.setCursor(0, 1); lcd.print(" Test Complete! "); } else { memset(row, 0, 17); fmtDouble(voltage, 2, &row[0], 8); strcat(row, "V"); fmtDouble(temp, 0, &row[6], 8); strcat(&row[6], "\xDF"); strcat(&row[6], "C"); uint8_t degree = 0xEF; sprintf(&row[11], "%02d:%02d", hours, mins); for (int i=0;i<16;i++) if (row[i] == 0) row[i] = ' '; lcd.setCursor(0, 1); lcd.print(row); } } void fmtDouble(double val, byte precision, char *buf, unsigned bufLen = 0xffff); unsigned fmtUnsigned(unsigned long val, char *buf, unsigned bufLen = 0xffff, byte width = 0); unsigned fmtUnsigned(unsigned long val, char *buf, unsigned bufLen, byte width) { if (!buf || !bufLen) return(0); // produce the digit string (backwards in the digit buffer) char dbuf[10]; unsigned idx = 0; while (idx < sizeof(dbuf)) { dbuf[idx++] = (val % 10) + '0'; if ((val /= 10) == 0) break; } // copy the optional leading zeroes and digits to the target buffer unsigned len = 0; byte padding = (width > idx) ? width - idx : 0; char c = '0'; while ((--bufLen > 0) && (idx || padding)) { if (padding) padding--; else c = dbuf[--idx]; *buf++ = c; len++; } // add the null termination *buf = '\0'; return(len); } void fmtDouble(double val, byte precision, char *buf, unsigned bufLen) { if (!buf || !bufLen) return; const byte maxPrecision = 6; if (precision > maxPrecision) precision = maxPrecision; if (--bufLen > 0) { // check for a negative value if (val < 0.0) { val = -val; *buf = '-'; bufLen--; } // compute the rounding factor and fractional multiplier double roundingFactor = 1; unsigned long mult = 1; for (byte i = 0; i < precision; i++) { roundingFactor /= 10.0; mult *= 10; } if (bufLen > 0) { // apply the rounding factor val += roundingFactor; // add the integral portion to the buffer unsigned len = fmtUnsigned((unsigned long)val, buf, bufLen); buf += len; bufLen -= len; } // handle the fractional portion if ((precision > 0) && (bufLen > 0)) { *buf++ = '.'; if (--bufLen > 0) buf += fmtUnsigned((unsigned long)((val - (unsigned long)val) * mult), buf, bufLen, precision); } } // null-terminate the string *buf = '\0'; }