Atualizar SharpDistance_v0.ino

SharpDistance_v0.ino

@@ -1,33 +1,52 @@
 #define sensorPin A1 // Sharp 2Y0A21 sensor (10 to 80 cm)
+#define numReadings 10 // Number of readings to average for the moving average
+
+int readings[numReadings]; // Array to store the readings
+int readIndex = 0; // Index of the current reading
+int total = 0; // Sum of the readings
+int average = 0; // Average of the readings
 
 void setup() {
   Serial.begin(9600);
   pinMode(sensorPin, INPUT);
+  for (int i = 0; i < numReadings; i++) {
+    readings[i] = 0; // Initialize the readings array
+  }
 }
 
 void loop() {
-  int rawValue = analogRead(sensorPin); // Read the raw analog value
+  // Subtract the last reading
-  float volts = rawValue * 0.0048828125; // Convert the raw value to volts
+  total = total - readings[readIndex];
-  int distance = 26 * pow(volts, -1); // Calculate distance using the formula
 
-  // Print the raw analog value, voltage, and calculated distance to the Serial Monitor
+  // Read the raw analog value
+  int rawValue = analogRead(sensorPin);
+
+  // Calculate distance using the formula
+  int distance = 123.221814 * exp(-0.005895 * rawValue);
+
+  // Add the current reading to the total
+  total = total + distance;
+
+  // Store the reading in the array
+  readings[readIndex] = distance;
+
+  // Advance to the next position in the array
+  readIndex = readIndex + 1;
+
+  // If we're at the end of the array, wrap around to the beginning
+  if (readIndex >= numReadings) {
+    readIndex = 0;
+  }
+
+  // Calculate the average
+  average = total / numReadings;
+
+  // Print the raw analog value and the averaged distance to the Serial Monitor
   Serial.print("Raw Value: ");
   Serial.print(rawValue);
-  Serial.print(", Volts: ");
-  Serial.print(volts);
   Serial.print(", Distance: ");
-  Serial.print(distance);
+  Serial.print(average);
   Serial.println(" cm");
 
-  delay(700);
+  delay(250); // Approximately 250 ms delay
-}
-
-float readSensorAverage(int pin, int numSamples) {
-  long sum = 0;
-  for (int i = 0; i < numSamples; i++) {
-    sum += analogRead(pin);
-    delay(10); // Small pause between readings
-  }
-  float average = sum / numSamples;
-  return average * 0.0048828125; // Convert the average value to volts
 }