CharDisplayUI.cpp

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#include "CharDisplayUI.h"
 
CharDisplayUI::CharDisplayUI(LiquidCrystal *liquidCrystal, const ButtonReader *buttonReader,
                             SingleHumidistat *humidistat, etl::span<const ThermistorReader, 4> trs)
        : ControllerUI(liquidCrystal, buttonReader, trs), liquidCrystal(*liquidCrystal), humidistat(*humidistat) {}
 
void CharDisplayUI::draw() {
    lastRefreshed = millis();
    // Update current humidity and temperature readings
    printf(2, 0, "%4.1f", humidistat.getHumidity());
    printf(12, 1, "%4.1f", humidistat.getTemperature());
 
    // Setpoint
    {
        char *buf = asprintf("%3.0f%%", humidistat.sp);
        if (abs(humidistat.sp - humidistat.getHumidity())/100 > tolerance) {
            blink(7, 0, buf);
        } else {
            liquidCrystal.setCursor(7, 0);
            liquidCrystal.print(buf);
        }
        delete buf;
    }
 
    // Control value
    printf(12, 0, "%3.0f%%", humidistat.cv*100);
 
    // Active status
    liquidCrystal.setCursor(0, 0);
    liquidCrystal.print(humidistat.active);
 
    // Thermistors
    for (size_t i = 0; i < trs.size(); ++i) {
        printNTC(3 * i, 1, i);
    }
}
 
void CharDisplayUI::clear() {
    liquidCrystal.clear();
}
 
void CharDisplayUI::setCursor(uint8_t col, uint8_t row) {
    liquidCrystal.setCursor(col, row);
}
 
void CharDisplayUI::drawSplash() {
    liquidCrystal.clear();
    liquidCrystal.setCursor(0, 0);
    liquidCrystal.print("Humidistat");
    liquidCrystal.setCursor(0, 1);
    liquidCrystal.print("Lars Veldscholte");
}
 
void CharDisplayUI::drawInfo() {
    liquidCrystal.clear();
    printf(0, 0, "%4u %3.2f %4.3f",
           humidistat.getConfigStore()->dt,
           humidistat.getConfigStore()->S_lowValue,
           humidistat.getConfigStore()->HC_Kp
    );
    printf(0, 1, "%4.3f %4.3f",
           humidistat.getConfigStore()->HC_Ki,
           humidistat.getConfigStore()->HC_Kd
    );
}
 
void CharDisplayUI::begin() {
    liquidCrystal.begin(16, 2);
}
 
bool CharDisplayUI::handleInput(Buttons state, uint16_t pressedFor) {
    int8_t delta;
    switch (state) {
        case Buttons::UP:
            delta = 1;
            break;
        case Buttons::DOWN:
            delta = -1;
            break;
        case Buttons::LEFT:
            delta = static_cast<int8_t>(-adjustStep);
            break;
        case Buttons::RIGHT:
            delta = static_cast<int8_t>(adjustStep);
            break;
        case Buttons::SELECT:
            // Toggle active state
            humidistat.active = !humidistat.active;
            return true;
        default:
            return false;
    }
 
    if (humidistat.active) {
        adjustValue(delta, humidistat.sp, 0, 100);
    } else {
        adjustValue(delta*0.01, humidistat.cv, humidistat.getCvMin(), humidistat.getCvMax());
    }
    return true;
}