main.cpp

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#include <Arduino.h>
 
#include CONFIG_HEADER
#include "aliases.h"
 
#include "EEPROMConfig.h"
#include "SerialLogger.h"
#include "input/ButtonReader.h"
#include "sensor/ThermistorReader.h"
#include "SetpointProfileRunner.h"
 
// Beware: Lots of preprocessor fuckery to get conditional compilation based on config settings below
 
// Humidity sensor
#ifdef HUMIDISTAT_DHT
DHT dht(config::PIN_DHT, DHT22);
DHTHumiditySensor hs(&dht);
#endif
#ifdef HUMIDISTAT_SHT
SHTSensor sht;
SHTHumiditySensor hs(&sht);
#endif
 
// Thermistors
ThermistorReader trs[] = {
        ThermistorReader(config::PIN_T1),
        ThermistorReader(config::PIN_T2),
        ThermistorReader(config::PIN_T3),
        ThermistorReader(config::PIN_T4)
};
 
// Input
VoltLadder voltLadder;
ButtonReader buttonReader(config::PIN_BTN, &voltLadder);
 
EEPROMConfig eepromConfig;
 
// PWM frequency and resolution: MCU-dependent
#if defined(ARDUINO_TEENSYLC)
const uint8_t pwmRes = 16;
#elif defined(ARDUINO_TEENSY40)
const uint8_t pwmRes = 15;
#else
const uint8_t pwmRes = 8;
#endif
 
// Humidity controller
#ifdef HUMIDISTAT_CONTROLLER_SINGLE
#include "control/SingleHumidistat.h"
SingleHumidistat humidistat(&hs, &eepromConfig.configStore, {{config::PIN_S1, config::PIN_S2}}, pwmRes);
using cHumidistat = SingleHumidistat;
#endif
#ifdef HUMIDISTAT_CONTROLLER_CASCADE
#include "sensor/FlowSensor.h"
#include "control/CascadeHumidistat.h"
FlowSensor flowSensors[] = {FlowSensor(config::PIN_F1), FlowSensor(config::PIN_F2)};
CascadeHumidistat humidistat(&hs, &eepromConfig.configStore, flowSensors, {config::PIN_S1, config::PIN_S2}, pwmRes);
using cHumidistat = CascadeHumidistat;
#endif
 
// UI
#ifdef HUMIDISTAT_UI_CHAR
#include <LiquidCrystal.h>
#include "ui/CharDisplayUI.h"
LiquidCrystal liquidCrystal(config::PIN_LCD_RS, config::PIN_LCD_ENABLE, config::PIN_LCD_D0, config::PIN_LCD_D1,
                            config::PIN_LCD_D2, config::PIN_LCD_D3);
CharDisplayUI ui(&liquidCrystal, &buttonReader, &humidistat, trs);
#endif
#ifdef HUMIDISTAT_UI_GRAPH
#include <U8g2lib.h>
#include "ui/GraphicalDisplayUI.h"
 
SetpointProfileRunner spr(&humidistat);
 
#ifdef ARDUINO_TEENSYLC
U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, config::PIN_LCD_CS);
#endif
#ifdef ARDUINO_TEENSY40
U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, config::PIN_LCD_SCLK, config::PIN_LCD_MOSI, config::PIN_LCD_CS);
#endif
GraphicalDisplayUI<cHumidistat> ui(&u8g2, &buttonReader, &humidistat, trs, &eepromConfig, &spr);
#endif
 
SerialLogger<cHumidistat> serialLogger(&humidistat, trs, eepromConfig.configStore.dt);
 
void setup() {
#ifdef ARDUINO_AVR_UNO
    // Set PWM frequency on D3 and D11 to 490.20 Hz
    // See: https://arduinoinfo.mywikis.net/wiki/Arduino-PWM-Frequency
    TCCR2B = TCCR2B & B11111000 | B00000100;
#endif
#if defined(ARDUINO_TEENSYLC) || defined(ARDUINO_TEENSY40)
    // Set PWM frequency to 250 Hz
    analogWriteFrequency(config::PIN_S1, 500);
    // Increase PWM resolution from default 8-bits
    analogWriteResolution(pwmRes);
#endif
 
    hs.begin();
    serialLogger.begin(config::serialRate);
    ui.begin();
}
 
void loop() {
    buttonReader.sample();
    ui.update();
    humidistat.update();
    serialLogger.update();
#ifdef HUMIDISTAT_UI_GRAPH
    spr.update();
#endif
}