Initial commit

src/main.cpp

@@ -0,0 +1,41 @@
+#include "config.h"
+#include "wlan.h"
+#include <Arduino.h>
+#include <DHT.h>
+
+#define DHTTYPE DHT22
+#define DHTPIN 4
+DHT dht(DHTPIN, DHTTYPE);
+
+const int fc28_pin = A0;
+const char *config_file_path = "/config.json";
+Config *config;
+WiFiClient wifi_client;
+PubSubClient mqtt_client(wifi_client);
+
+bool check_valid_value(float value) {
+  return (!isnan(value) && value >= 0 && value <= 100);
+}
+
+void setup() {
+  Serial.begin(9600);
+  dht.begin();
+  config = (Config *)malloc(sizeof(Config));
+  if (!load_config_file(config_file_path, config))
+    Serial.println("ERROR: The config file could not be loaded");
+  connect_wlan(config);
+}
+
+void loop() {
+  float temperature = dht.readTemperature();
+  float humidity = dht.readHumidity();
+  int analog_val = analogRead(fc28_pin);
+  int soil_percentage = map(analog_val, 0, 1023, 0, 100);
+  float data[3] = {temperature, humidity, static_cast<float>(soil_percentage)};
+  if (check_valid_value(temperature) && check_valid_value(humidity)) {
+    mqtt_transfer(mqtt_client, config, data);
+  }
+  disconnect_mqtt(mqtt_client, config->topic);
+  free(config);
+  enter_deep_sleep(false, config->sleep_time);
+}