113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
#include <string>
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#include "../modules/fmt/include/fmt/format.h"
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#include "../modules/pico-onewire/api/one_wire.h"
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#include "hardware/i2c.h"
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#include "pico/stdlib.h"
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#include "config.h"
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#include "lcd.h"
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#include "relais.h"
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// GPIOs used
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constexpr uint I2C_SDA_PIN = 26;
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constexpr uint I2C_SCL_PIN = 27;
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constexpr uint DS18B20_PIN = 28;
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constexpr uint RELAIS_PIN = 18;
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constexpr uint BUTTON_1_PIN = 17;
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constexpr uint BUTTON_2_PIN = 16;
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constexpr uint BUTTON_3_PIN = 15;
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// Custom chars for the LCD
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constexpr char CUSTOM_CHAR_DEG = 0xDF;
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constexpr char CUSTOM_CHAR_AE = 0xE1;
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// Global variables which have to be accessed by callback function
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bool isSystemOn = false;
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float temp_tgt{28.0};
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absolute_time_t lastPressed = get_absolute_time();
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using std::string;
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void buttonPressedCallback(uint gpio, [[maybe_unused]] uint32_t events) {
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absolute_time_t now = get_absolute_time();
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if (absolute_time_diff_us(lastPressed, now) < 750000) {
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return;
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} else {
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lastPressed = now;
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}
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switch (gpio) {
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case BUTTON_1_PIN:
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temp_tgt -= 0.5;
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break;
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case BUTTON_2_PIN:
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temp_tgt += 0.5;
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break;
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case BUTTON_3_PIN:
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isSystemOn = !isSystemOn;
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break;
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}
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}
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int main() {
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// Enable UART so we can print status output
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stdio_init_all();
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// Initialize the LCD
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auto myLCD = LCD(i2c1, I2C_SDA_PIN, I2C_SCL_PIN);
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myLCD.clear();
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// Initialize the temp sensor
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One_wire oneWire(DS18B20_PIN);
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oneWire.init();
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rom_address_t address{};
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oneWire.single_device_read_rom(address);
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// Initialize the relais
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Relais relais(RELAIS_PIN);
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// Initialize the Buttons
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gpio_set_irq_enabled_with_callback(BUTTON_1_PIN, GPIO_IRQ_EDGE_FALL, true,
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&buttonPressedCallback);
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gpio_set_irq_enabled_with_callback(BUTTON_2_PIN, GPIO_IRQ_EDGE_FALL, true,
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&buttonPressedCallback);
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gpio_set_irq_enabled_with_callback(BUTTON_3_PIN, GPIO_IRQ_EDGE_FALL, true,
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&buttonPressedCallback);
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float temp_act{0};
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float temp_diff{0.5};
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string lcdText{};
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bool isHeating = false;
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string heatInfo{""};
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string systemInfo{""};
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lcdText = fmt::format(" G{}rbox Manager\n (Ver. {})", CUSTOM_CHAR_AE,
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PROJECT_VERSION);
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myLCD.sendString(lcdText);
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sleep_ms(3000);
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while (true) {
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oneWire.convert_temperature(address, true, false);
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temp_act = oneWire.temperature(address);
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if (isSystemOn && temp_act < temp_tgt - temp_diff) {
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isHeating = true;
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} else if (isSystemOn && temp_act > temp_tgt + temp_diff) {
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isHeating = false;
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} else if (!isSystemOn) {
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isHeating = false;
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}
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isHeating ? heatInfo = ">H<" : heatInfo = " ";
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isSystemOn ? systemInfo = "ON " : systemInfo = "OFF";
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relais.activate(isHeating);
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lcdText = fmt::format("ACT: {:05.2f}{}C {}\nACT: {:05.2f}{}C {}",
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temp_act, CUSTOM_CHAR_DEG, heatInfo, temp_tgt,
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CUSTOM_CHAR_DEG, systemInfo);
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myLCD.setCursor(0, 0);
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myLCD.sendString(lcdText);
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}
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} |