34 lines
959 B
Arduino
34 lines
959 B
Arduino
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#define sensorPin A1 // Sharp 2Y0A21 sensor (10 to 80 cm)
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void setup() {
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Serial.begin(9600);
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pinMode(sensorPin, INPUT);
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}
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void loop() {
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int rawValue = analogRead(sensorPin); // Read the raw analog value
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float volts = rawValue * 0.0048828125; // Convert the raw value to volts
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int distance = 26 * pow(volts, -1); // Calculate distance using the formula
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// Print the raw analog value, voltage, and calculated distance to the Serial Monitor
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Serial.print("Raw Value: ");
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Serial.print(rawValue);
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Serial.print(", Volts: ");
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Serial.print(volts);
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Serial.print(", Distance: ");
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Serial.print(distance);
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Serial.println(" cm");
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delay(700);
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}
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float readSensorAverage(int pin, int numSamples) {
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long sum = 0;
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for (int i = 0; i < numSamples; i++) {
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sum += analogRead(pin);
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delay(10); // Small pause between readings
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}
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float average = sum / numSamples;
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return average * 0.0048828125; // Convert the average value to volts
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}
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