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/*
* display.cpp - OpenPCR control software.
* Copyright (C) 2010-2011 Josh Perfetto. All Rights Reserved.
*
* OpenPCR control software is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenPCR control software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* the OpenPCR control software. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pcr_includes.h"
#include "display.h"
#include "thermocycler.h"
#include "program.h"
#define RESET_INTERVAL 30000 //ms
//progmem strings
const char HEATING_STR[] PROGMEM = "Heating";
const char COOLING_STR[] PROGMEM = "Cooling";
const char LIDWAIT_STR[] PROGMEM = "Heating Lid";
const char STOPPED_STR[] PROGMEM = "Ready";
const char RUN_COMPLETE_STR[] PROGMEM = "*** Run Complete ***";
const char OPENPCR_STR[] PROGMEM = "OpenPCR";
const char POWERED_OFF_STR[] PROGMEM = "Powered Off";
const char VERSION_STR[] PROGMEM = "Firmware v1.0.2";
const char ETA_OVER_10H_STR[] PROGMEM = "ETA: >10h";
const char LID_FORM_STR[] PROGMEM = "Lid: %3d C";
const char CYCLE_FORM_STR[] PROGMEM = "%d of %d";
const char ETA_HOURMIN_FORM_STR[] PROGMEM = "ETA: %d:%02d";
const char ETA_SEC_FORM_STR[] PROGMEM = "ETA: %2ds";
const char BLOCK_TEMP_FORM_STR[] PROGMEM = "%s C";
const char STATE_FORM_STR[] PROGMEM = "%-13s";
Display::Display():
iLcd(6, 7, 8, A5, 16, 17),
iLastState(Thermocycler::EOff) {
iLcd.begin(20, 4);
iLastReset = millis();
iszDebugMsg[0] = '\0';
// Set contrast
iContrast = ProgramStore::RetrieveContrast();
analogWrite(5, iContrast);
}
void Display::Clear() {
iLastState = Thermocycler::EClear;
}
void Display::SetContrast(uint8_t contrast) {
iContrast = contrast;
analogWrite(5, iContrast);
iLcd.begin(20, 4);
}
void Display::SetDebugMsg(char* szDebugMsg) {
strcpy(iszDebugMsg, szDebugMsg);
iLcd.clear();
Update();
}
void Display::Update() {
Thermocycler::ProgramState state = GetThermocycler().GetProgramState();
if (iLastState != state)
iLcd.clear();
iLastState = state;
// check for reset
if (millis() - iLastReset > RESET_INTERVAL) {
iLcd.begin(20, 4);
iLastReset = millis();
}
switch (state) {
case Thermocycler::ERunning:
case Thermocycler::EComplete:
case Thermocycler::ELidWait:
case Thermocycler::EStopped:
iLcd.setCursor(0, 1);
#ifdef DEBUG_DISPLAY
iLcd.print(iszDebugMsg);
#else
iLcd.print(GetThermocycler().GetProgName());
#endif
DisplayLidTemp();
DisplayBlockTemp();
DisplayState();
if (state == Thermocycler::ERunning && !GetThermocycler().GetCurrentStep()->IsFinal()) {
DisplayCycle();
DisplayEta();
} else if (state == Thermocycler::EComplete) {
iLcd.setCursor(0, 3);
iLcd.print(rps(RUN_COMPLETE_STR));
}
break;
case Thermocycler::EOff:
case Thermocycler::EStartup:
iLcd.setCursor(6, 1);
iLcd.print(rps(OPENPCR_STR));
if (state == Thermocycler::EOff) {
iLcd.setCursor(4, 2);
iLcd.print(rps(POWERED_OFF_STR));
} else {
iLcd.setCursor(2, 2);
iLcd.print(rps(VERSION_STR));
}
break;
}
}
void Display::DisplayEta() {
char timeString[16];
unsigned long timeRemaining = GetThermocycler().GetTimeRemainingS();
int hours = timeRemaining / 3600;
int mins = (timeRemaining % 3600) / 60;
int secs = timeRemaining % 60;
if (hours >= 10)
strcpy_P(timeString, ETA_OVER_10H_STR);
else if (mins >= 1 || hours >= 1)
sprintf_P(timeString, ETA_HOURMIN_FORM_STR, hours, mins);
else
sprintf_P(timeString, ETA_SEC_FORM_STR, secs);
iLcd.setCursor(11, 3);
iLcd.print(timeString);
}
void Display::DisplayLidTemp() {
char buf[16];
sprintf_P(buf, LID_FORM_STR, (int)(GetThermocycler().GetLidTemp() + 0.5));
iLcd.setCursor(10, 2);
iLcd.print(buf);
}
void Display::DisplayBlockTemp() {
char buf[16];
char floatStr[16];
sprintFloat(floatStr, GetThermocycler().GetPlateTemp(), 1, true);
sprintf_P(buf, BLOCK_TEMP_FORM_STR, floatStr);
iLcd.setCursor(13, 0);
iLcd.print(buf);
}
void Display::DisplayCycle() {
char buf[16];
iLcd.setCursor(0, 3);
sprintf_P(buf, CYCLE_FORM_STR, GetThermocycler().GetCurrentCycleNum(), GetThermocycler().GetNumCycles());
iLcd.print(buf);
}
void Display::DisplayState() {
char buf[32];
char* stateStr;
switch (GetThermocycler().GetProgramState()) {
case Thermocycler::ELidWait:
stateStr = rps(LIDWAIT_STR);
break;
case Thermocycler::ERunning:
case Thermocycler::EComplete:
switch (GetThermocycler().GetThermalState()) {
case Thermocycler::EHeating:
stateStr = rps(HEATING_STR);
break;
case Thermocycler::ECooling:
stateStr = rps(COOLING_STR);
break;
case Thermocycler::EHolding:
stateStr = GetThermocycler().GetCurrentStep()->GetName();
break;
case Thermocycler::EIdle:
stateStr = rps(STOPPED_STR);
break;
}
break;
case Thermocycler::EStopped:
stateStr = rps(STOPPED_STR);
break;
}
iLcd.setCursor(0, 0);
sprintf_P(buf, STATE_FORM_STR, stateStr);
iLcd.print(buf);
}
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