Change time delay and output format

src/main.cpp

@@ -15,11 +15,11 @@ void setup() {
 }
 
 void loop() {
-  char buffer[100];
+  char buffer[200];
   int analog_val = analogRead(fc28_pin);
   int soil_percentage = map(analog_val, 0, 1023, 0, 100);
   sprintf(buffer, "Temperature: %.2f°C Humidity: %.2f%% Soil humidity: %i%%",
           dht.readTemperature(), dht.readHumidity(), soil_percentage);
   Serial.println(buffer);
-  delay(60000);
+  delay(30000);
 }