relais added

CMakeLists.txt

@@ -23,7 +23,7 @@ pico_sdk_init()
 
 # Add executable. Default name is the project name, version 0.1
 
-add_executable(gbmanager gbmanager.cpp lcd.cpp ds18b20.cpp)
+add_executable(gbmanager gbmanager.cpp lcd.cpp ds18b20.cpp relais.cpp)
 
 pico_set_program_name(gbmanager "gbmanager")
 pico_set_program_version(gbmanager "0.1")

gbmanager.cpp

@@ -8,11 +8,15 @@
 #include "config.h"
 #include "ds18b20.h"
 #include "lcd.h"
+#include "relais.h"
 
+// GPIOs used
 constexpr uint I2C_SDA_PIN = 26;
 constexpr uint I2C_SCL_PIN = 27;
 constexpr uint DS18B20_PIN = 28;
+constexpr uint RELAIS_PIN = 18;
 
+// Custom chars for the LCD
 constexpr char CUSTOM_CHAR_DEG = 0xDF;
 constexpr char CUSTOM_CHAR_AE = 0xE1;
 
@@ -22,11 +26,16 @@ int main() {
     // Enable UART so we can print status output
     stdio_init_all();
 
+    // Initialize the LCD
     auto myLCD = LCD(i2c1, I2C_SDA_PIN, I2C_SCL_PIN);
     myLCD.clear();
 
+    // Initialize the temp sensor
     // DS18B20 ds = DS18B20(pio0, DS18B20_PIN);
 
+    // Initialize the relais
+    Relais relais(RELAIS_PIN);
+
     float temp_act{0};
     float temp_tgt{28.0};
     float temp_diff{0.5};
@@ -56,6 +65,8 @@ int main() {
         }
         isHeating ? heatInfo = ">H<" : heatInfo = "   ";
 
+        relais.activate(isHeating);
+
         lcdText.str("");
         lcdText.clear();
         lcdText.precision(4);

relais.cpp

@@ -0,0 +1,23 @@
+#include "relais.h"
+
+Relais::Relais(uint gpio) : gpio{gpio} {
+    gpio_set_dir(gpio, true);
+    gpio_init(gpio);
+    off();
+}
+
+void Relais::activate(bool active) {
+    if (active) {
+        gpio_pull_down(gpio);
+    } else {
+        gpio_pull_up(gpio);
+    }
+}
+
+void Relais::on() {
+    activate(true);
+}
+
+void Relais::off() {
+    activate(false);
+}

relais.h

@@ -0,0 +1,18 @@
+#ifndef RELAIS_H
+#define RELAIS_H
+
+#include "pico/stdlib.h"
+#include "hardware/gpio.h"
+
+class Relais {
+    public:
+    Relais(uint gpio);
+    void activate(bool active);
+    void on();
+    void off();
+
+    private:
+    uint gpio;
+};
+
+#endif