Published October 23, 2021
Arduino Uno talking parking assistant

Ultrasonic distance indication by speech
IntermediateShowcase (no instructions)195
Things used in this project

Hardware components

Jumper wires (generic)
Ultrasonic Sensor - HC-SR04 (Generic)
Speaker: 3W, 4 ohms
MOSFET Transistor, Switching
9V battery (generic)
Arduino UNO
Solderless Breadboard Half Size
Software apps and online services

Arduino IDE
Hand tools and fabrication machines

Multitool, Screwdriver
Story

This project is about speech distance indication behind the rear bumper of a car while parking. I decided to make it bacause I wanted to know the exact space behind the car in the garage. The ultrasonic sensor detects the distance to the nearest obstacle behind the car and the speaker outputs the distance from 50 to 0 centimeters.
Distance starts from 50 to 0 centimeters in Bulgarian language. First 50, 40, 30, 20, 10 and 0.
Code

Arduino talkig parking assistant
#include <PCM.h>
#define echoPin 2
#define trigPin 3
long duration; // variable for the duration of sound wave travel
int distance;



const unsigned char sample50[] PROGMEM = {
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};
const unsigned char sample40[] PROGMEM = {
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161, 125, 108, 132, 122, 102, 99, 103, 118, 125, 125, 111, 138, 149, 136, 129, 132, 134, 126, 130, 106, 108, 122, 120, 103, 111, 123, 122, 128, 126, 124, 140, 146, 128, 129, 132, 130, 120, 121, 109, 113, 117, 114, 107, 115, 121, 114, 114, 118, 121, 112, 117, 111, 113, 114, 118, 107, 112, 123, 116, 108, 118, 125, 125, 120, 124, 146, 189, 179, 156, 181, 200, 200, 171, 164, 138, 160, 144, 102, 84, 115, 121, 94, 105, 109, 132, 140, 145, 126, 149, 156, 137, 126, 123, 116, 108, 111, 94, 92, 109, 113, 113, 114, 128, 133, 142, 140, 128, 137, 133, 135, 114, 118, 116, 124, 124, 118, 127, 133, 145, 136, 140, 135, 136, 130, 127, 116, 113, 113, 109, 108, 101, 109, 112, 114, 113, 116, 118, 121, 124, 119, 118, 125, 126, 122, 124, 129, 135, 132, 133, 131, 139, 149, 172, 161, 147, 168, 171, 165, 151, 151, 127, 141, 138, 109, 105, 121, 121, 107, 124, 119, 126, 136, 139, 122, 135, 146, 129, 123, 121, 123, 115, 116, 106, 109, 118, 122, 117, 117, 133, 135, 135, 133, 132, 134, 134, 126, 121, 123, 124, 119, 124, 123, 124, 132, 133, 131, 127, 136, 128, 127, 119, 115, 117, 112, 107, 105, 111, 109, 113, 111, 119, 122, 125, 128, 127, 132, 134, 133, 127, 133, 132, 124, 130, 127, 125, 128, 128, 122, 126, 132, 
};
const unsigned char sample30[] PROGMEM = {
129, 128, 126, 133, 132, 128, 123, 122, 129, 131, 130, 126, 121, 128, 130, 125, 124, 126, 130, 129, 128, 129, 125, 132, 133, 124, 127, 127, 128, 132, 126, 122, 123, 124, 125, 126, 125, 121, 131, 134, 120, 123, 133, 133, 132, 127, 128, 137, 140, 126, 120, 130, 127, 116, 117, 122, 126, 126, 121, 122, 130, 132, 123, 121, 129, 131, 131, 128, 125, 133, 132, 123, 128, 132, 131, 131, 129, 131, 135, 135, 127, 125, 135, 129, 126, 130, 126, 127, 128, 123, 125, 126, 124, 123, 128, 131, 127, 131, 132, 129, 133, 131, 124, 130, 129, 121, 124, 128, 125, 120, 123, 126, 128, 131, 124, 122, 133, 129, 125, 131, 131, 132, 133, 124, 123, 136, 132, 120, 127, 137, 132, 125, 123, 123, 131, 132, 121, 119, 126, 127, 124, 126, 121, 119, 129, 126, 122, 123, 123, 128, 129, 127, 125, 126, 131, 128, 127, 128, 130, 133, 129, 127, 132, 138, 138, 133, 132, 134, 140, 139, 133, 133, 134, 136, 132, 127, 130, 127, 122, 118, 120, 120, 115, 116, 112, 113, 113, 110, 110, 108, 112, 112, 107, 108, 101, 99, 93, 89, 116, 139, 132, 142, 169, 182, 191, 194, 192, 197, 200, 184, 158, 155, 154, 130, 118, 113, 110, 115, 109, 106, 119, 133, 128, 126, 133, 126, 123, 113, 93, 82, 70, 55, 47, 52, 51, 44, 63, 72, 75, 82, 93, 173, 219, 157, 166, 251, 255, 214, 202, 195, 203, 204, 142, 88, 122, 137, 79, 56, 80, 99, 114, 106, 98, 146, 189, 163, 147, 177, 190, 179, 159, 134, 131, 133, 99, 60, 66, 74, 53, 39, 44, 60, 67, 66, 61, 76, 103, 68, 108, 226, 177, 125, 221, 255, 222, 211, 195, 197, 227, 183, 87, 110, 153, 87, 49, 68, 84, 108, 108, 84, 120, 197, 183, 140, 182, 213, 190, 176, 155, 133, 140, 111, 51, 56, 71, 43, 31, 36, 54, 68, 66, 69, 79, 110, 96, 102, 196, 185, 131, 199, 236, 207, 202, 201, 195, 208, 188, 117, 117, 157, 108, 62, 78, 95, 99, 96, 89, 112, 158, 161, 136, 158, 189, 176, 163, 151, 133, 132, 112, 72, 68, 73, 63, 54, 52, 71, 85, 85, 90, 107, 111, 106, 147, 171, 139, 145, 177, 177, 175, 178, 170, 177, 187, 163, 139, 159, 157, 120, 119, 132, 117, 114, 125, 114, 121, 135, 123, 119, 136, 137, 129, 136, 130, 119, 117, 112, 97, 102, 98, 90, 100, 101, 97, 104, 102, 96, 104, 110, 130, 124, 120, 131, 140, 143, 145, 160, 150, 158, 169, 161, 157, 163, 153, 152, 157, 149, 144, 139, 140, 130, 139, 130, 123, 127, 123, 121, 117, 116, 104, 113, 102, 90, 97, 98, 92, 92, 99, 89, 100, 95, 86, 90, 126, 127, 117, 140, 147, 161, 156, 171, 172, 185, 176, 173, 174, 171, 170, 150, 156, 133, 142, 130, 114, 112, 119, 113, 104, 115, 109, 117, 126, 111, 100, 127, 118, 87, 90, 114, 90, 84, 89, 81, 78, 82, 72, 112, 139, 96, 147, 175, 167, 179, 195, 185, 211, 212, 171, 182, 197, 160, 124, 150, 132, 113, 98, 102, 119, 110, 89, 105, 143, 112, 95, 144, 125, 101, 116, 93, 86, 102, 86, 50, 86, 81, 61, 60, 144, 142, 72, 183, 200, 160, 183, 218, 192, 204, 200, 149, 186, 192, 119, 94, 157, 105, 84, 101, 93, 117, 108, 106, 109, 166, 124, 107, 155, 143, 110, 90, 118, 84, 92, 68, 58, 78, 65, 42, 108, 128, 80, 147, 183, 173, 162, 233, 211, 202, 205, 204, 206, 167, 161, 130, 138, 109, 99, 86, 96, 92, 81, 110, 116, 117, 133, 128, 144, 140, 115, 105, 117, 110, 59, 73, 67, 65, 8, 89, 132, 46, 106, 191, 164, 143, 225, 215, 211, 224, 204, 208, 218, 142, 131, 176, 109, 65, 114, 94, 61, 101, 110, 88, 103, 144, 121, 129, 134, 130, 115, 113, 81, 90, 79, 57, 31, 110, 127, 18, 157, 172, 131, 155, 235, 205, 195, 215, 212, 232, 163, 148, 162, 173, 66, 88, 130, 87, 42, 91, 114, 72, 99, 117, 125, 116, 115, 113, 120, 96, 89, 84, 78, 45, 146, 92, 52, 171, 162, 126, 160, 236, 176, 201, 207, 218, 203, 171, 168, 169, 160, 97, 128, 122, 88, 70, 106, 95, 58, 111, 100, 82, 105, 109, 89, 83, 102, 66, 73, 71, 134, 93, 71, 190, 143, 135, 176, 216, 166, 202, 211, 186, 204, 170, 179, 166, 155, 123, 147, 113, 90, 112, 102, 85, 86, 108, 98, 72, 91, 100, 69, 76, 69, 75, 43, 112, 108, 42, 160, 160, 104, 166, 221, 169, 175, 236, 205, 194, 194, 195, 185, 172, 153, 150, 152, 105, 112, 120, 95, 83, 98, 88, 80, 83, 80, 63, 74, 59, 49, 38, 82, 125, 18, 134, 177, 105, 139, 228, 191, 145, 255, 207, 184, 209, 208, 164, 175, 164, 144, 140, 105, 128, 111, 86, 92, 117, 83, 80, 113, 91, 65, 90, 79, 60, 34, 88, 114, 29, 111, 155, 100, 132, 202, 163, 172, 221, 199, 204, 204, 210, 188, 180, 177, 159, 150, 112, 123, 115, 79, 86, 93, 83, 66, 98, 85, 62, 92, 74, 71, 56, 87, 123, 57, 118, 163, 101, 148, 200, 154, 153, 223, 197, 163, 193, 212, 164, 161, 181, 163, 139, 123, 134, 120, 109, 83, 115, 90, 72, 99, 77, 72, 87, 69, 58, 71, 57, 106, 80, 86, 148, 128, 118, 204, 185, 145, 226, 221, 169, 197, 228, 163, 174, 175, 163, 141, 127, 125, 125, 103, 81, 134, 69, 85, 120, 75, 84, 97, 80, 66, 76, 45, 87, 111, 41, 115, 157, 98, 133, 208, 157, 143, 234, 186, 163, 209, 197, 153, 175, 166, 135, 150, 120, 117, 130, 106, 102, 124, 92, 107, 126, 79, 93, 125, 72, 61, 92, 53, 87, 87, 51, 129, 123, 76, 169, 190, 127, 187, 230, 169, 184, 229, 181, 172, 177, 166, 149, 129, 128, 138, 95, 104, 136, 77, 102, 134, 94, 77, 144, 95, 68, 101, 89, 49, 76, 120, 29, 92, 143, 72, 106, 187, 135, 140, 211, 187, 166, 221, 202, 174, 182, 193, 173, 122, 168, 130, 118, 102, 117, 109, 96, 100, 102, 116, 84, 116, 94, 93, 82, 107, 65, 72, 131, 60, 83, 146, 89, 93, 188, 113, 139, 201, 163, 154, 207, 188, 149, 205, 172, 166, 154, 150, 156, 122, 109, 142, 113, 82, 114, 114, 90, 93, 102, 91, 104, 81, 90, 86, 100, 66, 105, 123, 66, 141, 144, 92, 153, 198, 119, 159, 212, 176, 154, 212, 188, 150, 187, 171, 138, 152, 147, 109, 121, 120, 105, 83, 117, 86, 76, 102, 111, 83, 84, 126, 93, 89, 112, 107, 94, 101, 110, 132, 99, 119, 154, 114, 124, 175, 157, 127, 184, 188, 148, 185, 186, 157, 169, 174, 142, 141, 160, 110, 115, 137, 87, 92, 120, 88, 73, 116, 118, 79, 113, 129, 103, 113, 125, 125, 107, 111, 115, 103, 129, 93, 99, 149, 100, 96, 169, 139, 90, 185, 178, 109, 171, 211, 122, 154, 205, 133, 132, 178, 137, 104, 156, 131, 99, 132, 126, 94, 130, 122, 110, 118, 136, 115, 108, 140, 115, 93, 117, 123, 77, 88, 105, 116, 71, 100, 150, 84, 103, 183, 134, 114, 200, 185, 133, 191, 200, 145, 168, 175, 146, 135, 150, 121, 106, 127, 100, 88, 112, 88, 93, 116, 93, 105, 124, 112, 112, 130, 115, 117, 130, 108, 112, 131, 99, 93, 122, 83, 104, 138, 80, 132, 148, 114, 151, 191, 140, 158, 232, 151, 166, 216, 166, 147, 177, 158, 126, 129, 139, 95, 97, 124, 88, 77, 115, 108, 83, 123, 133, 114, 125, 163, 124, 131, 164, 135, 119, 145, 137, 100, 116, 123, 91, 74, 106, 68, 95, 104, 71, 126, 107, 104, 140, 138, 130, 161, 171, 142, 175, 175, 156, 169, 150, 155, 149, 121, 135, 125, 103, 116, 113, 100, 107, 118, 111, 130, 135, 132, 160, 155, 147, 166, 165, 151, 151, 137, 141, 125, 98, 112, 100, 60, 72, 81, 47, 26, 85, 109, 7, 123, 166, 51, 152, 215, 137, 151, 250, 193, 162, 226, 215, 168, 176, 194, 156, 132, 145, 138, 104, 102, 121, 96, 79, 112, 97, 95, 116, 115, 107, 130, 121, 118, 139, 128, 119, 135, 134, 108, 121, 112, 105, 107, 89, 91, 98, 77, 74, 78, 76, 48, 124, 104, 57, 177, 156, 112, 203, 227, 151, 227, 254, 185, 208, 244, 176, 162, 181, 137, 123, 93, 96, 88, 49, 58, 98, 48, 49, 122, 93, 82, 150, 154, 127, 167, 202, 161, 167, 199, 173, 150, 162, 156, 118, 109, 118, 86, 60, 93, 67, 44, 66, 78, 43, 57, 80, 61, 52, 143, 110, 62, 201, 160, 121, 220, 229, 150, 231, 241, 173, 200, 212, 168, 149, 167, 126, 124, 101, 93, 99, 84, 88, 93, 100, 103, 118, 137, 134, 148, 166, 158, 164, 173, 164, 154, 157, 141, 118, 132, 109, 80, 103, 89, 55, 77, 87, 46, 68, 95, 61, 85, 113, 78, 108, 126, 107, 109, 126, 123, 110, 173, 138, 119, 190, 174, 142, 182, 211, 165, 179, 202, 180, 175, 176, 157, 157, 140, 120, 142, 109, 85, 121, 110, 60, 108, 122, 75, 102, 142, 119, 118, 152, 146, 150, 153, 155, 162, 151, 137, 152, 142, 115, 119, 125, 101, 88, 102, 92, 76, 84, 94, 85, 78, 98, 98, 80, 103, 108, 101, 108, 109, 112, 126, 116, 109, 130, 121, 122, 156, 157, 136, 177, 193, 161, 182, 208, 176, 186, 199, 170, 176, 175, 145, 144, 147, 107, 115, 125, 83, 87, 122, 85, 77, 122, 109, 91, 132, 135, 114, 152, 147, 135, 154, 154, 133, 145, 144, 119, 132, 120, 104, 114, 102, 90, 105, 99, 79, 105, 105, 79, 107, 108, 98, 111, 122, 104, 120, 130, 115, 126, 137, 128, 121, 145, 127, 127, 140, 126, 125, 132, 127, 128, 148, 138, 139, 164, 157, 145, 166, 169, 160, 167, 161, 168, 164, 150, 145, 158, 137, 118, 145, 116, 107, 127, 113, 92, 118, 115, 100, 115, 114, 117, 114, 124, 118, 126, 121, 130, 130, 119, 129, 131, 124, 120, 131, 125, 121, 120, 127, 111, 114, 119, 113, 107, 114, 111, 110, 111, 107, 115, 115, 117, 111, 127, 125, 118, 126, 136, 131, 129, 141, 144, 130, 144, 145, 135, 135, 136, 129, 132, 133, 127, 133, 126, 127, 128, 134, 126, 144, 139, 139, 144, 154, 142, 143, 159, 144, 142, 141, 150, 135, 134, 132, 132, 125, 121, 124, 119, 114, 125, 107, 111, 125, 119, 104, 120, 132, 105, 119, 131, 122, 120, 132, 126, 128, 127, 130, 121, 137, 127, 115, 128, 120, 119, 112, 118, 120, 104, 110, 125, 105, 111, 119, 118, 115, 124, 125, 123, 136, 127, 135, 135, 138, 143, 135, 143, 139, 141, 142, 137, 133, 133, 136, 132, 129, 129, 130, 127, 124, 125, 131, 127, 128, 130, 131, 134, 135, 124, 138, 140, 123, 137, 139, 131, 132, 140, 133, 133, 134, 131, 125, 137, 122, 120, 137, 115, 125, 113, 132, 119, 113, 127, 121, 125, 118, 130, 124, 120, 128, 128, 121, 132, 120, 126, 121, 129, 124, 118, 128, 123, 121, 120, 128, 126, 126, 121, 134, 126, 128, 128, 132, 124, 131, 129, 117, 133, 133, 116, 127, 133, 118, 124, 125, 120, 131, 131, 120, 132, 132, 131, 120, 141, 126, 137, 130, 122, 141, 129, 131, 127, 129, 130, 129, 122, 130, 131, 132, 123, 123, 135, 128, 123, 130, 131, 136, 118, 129, 128, 127, 125, 124, 127, 130, 132, 111, 132, 138, 126, 118, 138, 128, 126, 130, 124, 139, 124, 124, 133, 131, 126, 131, 132, 124, 140, 125, 126, 131, 132, 122, 135, 129, 120, 132, 127, 126, 122, 137, 115, 135, 115, 129, 125, 125, 128, 119, 133, 127, 126, 122, 132, 127, 131, 116, 132, 128, 128, 123, 125, 134, 129, 116, 130, 127, 126, 124, 121, 129, 123, 128, 115, 129, 119, 129, 119, 128, 127, 129, 132, 121, 139, 124, 141, 125, 134, 138, 132, 131, 125, 142, 123, 128, 126, 132, 123, 128, 127, 123, 132, 121, 124, 129, 130, 120, 129, 128, 129, 128, 124, 133, 127, 132, 125, 125, 136, 122, 130, 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136, 122, 125, 140, 131, 124, 136, 120, 139, 127, 127, 125, 130, 130, 122, 127, 123, 137, 121, 124, 119, 135, 119, 128, 128, 123, 129, 127, 125, 130, 133, 123, 132, 126, 134, 126, 128, 133, 130, 128, 128, 136, 128, 130, 125, 128, 131, 133, 124, 123, 138, 126, 133, 123, 131, 128, 132, 122, 122, 126, 123, 126, 116, 125, 125, 128, 117, 126, 125, 130, 127, 128, 124, 136, 127, 121, 131, 135, 122, 126, 132, 126, 132, 124, 125, 128, 138, 117, 128, 128, 131, 124, 131, 130, 132, 128, 123, 132, 124, 125, 123, 128, 126, 129, 117, 131, 124, 132, 120, 127, 132, 126, 129, 124, 138, 127, 131, 129, 136, 126, 131, 130, 130, 135, 130, 126, 128, 139, 120, 129, 129, 131, 128, 126, 128, 132, 132, 118, 123, 127, 127, 121, 124, 120, 127, 121, 117, 124, 128, 125, 119, 128, 128, 130, 123, 136, 128, 127, 128, 123, 132, 128, 127, 121, 135, 132, 124, 127, 129, 132, 132, 126, 125, 137, 128, 126, 129, 128, 127, 130, 127, 124, 132, 132, 124, 131, 132, 126, 128, 126, 126, 129, 128, 123, 128, 129, 129, 122, 130, 128, 129, 130, 123, 130, 129, 128, 123, 126, 127, 123, 119, 121, 122, 124, 122, 126, 124, 129, 131, 128, 129, 133, 131, 127, 131, 130, 129, 128, 129, 127, 130, 134, 133, 127, 133, 132, 135, 128, 132, 133, 132, 135, 124, 130, 128, 130, 123, 126, 123, 129, 124, 119, 122, 122, 124, 114, 127, 115, 123, 123, 121, 123, 123, 128, 121, 130, 121, 128, 126, 128, 127, 124, 125, 123, 130, 121, 125, 118, 112, 113, 126, 130, 134, 138, 145, 155, 157, 160, 150, 161, 155, 150, 136, 132, 133, 123, 115, 110, 116, 115, 118, 112, 121, 127, 135, 127, 129, 137, 137, 139, 131, 129, 130, 131, 118, 117, 119, 118, 118, 116, 117, 119, 125, 121, 113, 121, 119, 118, 112, 111, 111, 107, 114, 108, 111, 116, 118, 121, 122, 122, 126, 130, 124, 124, 128, 123, 120, 116, 109, 129, 164, 152, 143, 168, 180, 180, 179, 166, 155, 176, 157, 119, 114, 133, 116, 103, 101, 100, 121, 130, 121, 116, 144, 151, 139, 134, 134, 128, 137, 120, 105, 106, 116, 109, 99, 109, 109, 127, 125, 123, 127, 146, 142, 137, 133, 133, 137, 129, 122, 117, 124, 123, 122, 117, 123, 124, 133, 129, 128, 130, 131, 130, 122, 122, 117, 120, 116, 109, 109, 120, 119, 120, 115, 121, 128, 121, 122, 123, 128, 116, 122, 124, 118, 122, 114, 120, 145, 170, 150, 151, 169, 179, 172, 155, 149, 140, 150, 130, 106, 104, 126, 118, 104, 107, 117, 131, 140, 135, 119, 145, 145, 132, 117, 120, 121, 118, 111, 98, 110, 119, 120, 113, 123, 129, 142, 138, 134, 138, 144, 143, 130, 125, 125, 126, 121, 118, 115, 119, 131, 132, 135, 134, 141, 147, 143, 137, 128, 134, 124, 122, 109, 104, 111, 105, 100, 103, 113, 113, 118, 119, 123, 127, 132, 127, 127, 128, 126, 128, 124, 122, 122, 123, 130, 130, 127, 134, 137, 137, 136, 136, 140, 165, 160, 145, 150, 163, 156, 145, 141, 126, 132, 130, 117, 103, 113, 122, 112, 113, 119, 119, 128, 137, 127, 124, 134, 135, 123, 121, 118, 115, 124, 116, 110, 117, 124, 122, 128, 130, 131, 141, 138, 138, 135, 138, 132, 130, 125, 124, 127, 122, 122, 122, 132, 131, 132, 131, 135, 130, 131, 128, 121, 
};
const unsigned char sample20[] PROGMEM = {
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};
const unsigned char sample10[] PROGMEM = {
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};
const unsigned char sample0[] PROGMEM = {
129, 129, 129, 129, 129, 129, 128, 128, 128, 128, 127, 127, 127, 126, 126, 126, 125, 125, 125, 124, 124, 124, 123, 123, 123, 123, 123, 123, 123, 123, 123, 123, 123, 124, 124, 125, 127, 129, 131, 133, 137, 140, 143, 146, 148, 150, 150, 151, 150, 148, 146, 143, 139, 134, 130, 125, 120, 116, 112, 108, 105, 102, 100, 98, 98, 98, 99, 100, 102, 104, 105, 106, 108, 109, 111, 117, 124, 128, 138, 148, 155, 163, 173, 176, 177, 180, 178, 172, 171, 166, 156, 150, 143, 133, 127, 122, 114, 110, 107, 102, 101, 101, 99, 99, 101, 102, 103, 107, 110, 114, 119, 123, 126, 130, 133, 135, 135, 133, 130, 126, 120, 114, 108, 102, 96, 91, 89, 89, 89, 98, 108, 116, 130, 146, 157, 172, 185, 190, 194, 197, 192, 188, 185, 174, 164, 157, 144, 134, 128, 117, 108, 104, 95, 90, 90, 87, 87, 92, 92, 96, 103, 108, 114, 122, 127, 131, 136, 137, 135, 135, 131, 124, 118, 111, 102, 96, 91, 85, 85, 90, 93, 103, 119, 130, 146, 165, 175, 185, 195, 196, 195, 197, 189, 179, 175, 163, 151, 147, 136, 125, 120, 110, 102, 100, 95, 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191, 207, 178, 195, 159, 149, 123, 95, 89, 76, 80, 88, 102, 97, 125, 106, 129, 123, 132, 142, 150, 154, 161, 155, 147, 135, 119, 110, 105, 103, 111, 121, 127, 146, 134, 154, 130, 135, 114, 112, 104, 95, 99, 85, 89, 78, 80, 75, 88, 84, 102, 98, 112, 104, 116, 104, 119, 131, 141, 186, 180, 222, 204, 213, 195, 192, 176, 176, 165, 148, 149, 114, 118, 92, 91, 85, 92, 93, 109, 112, 130, 130, 139, 137, 142, 142, 142, 146, 138, 145, 126, 124, 105, 97, 89, 97, 95, 116, 125, 138, 159, 165, 168, 172, 156, 149, 137, 122, 119, 108, 102, 89, 86, 66, 74, 63, 74, 84, 95, 110, 117, 114, 118, 102, 106, 95, 104, 124, 139, 188, 192, 227, 217, 220, 201, 194, 174, 173, 161, 155, 151, 127, 122, 86, 91, 66, 83, 83, 100, 111, 116, 128, 120, 134, 126, 133, 133, 130, 127, 126, 117, 117, 111, 106, 108, 104, 112, 116, 129, 143, 157, 175, 187, 189, 192, 169, 156, 129, 111, 103, 90, 96, 90, 89, 83, 78, 71, 82, 79, 102, 104, 112, 116, 111, 111, 111, 104, 109, 110, 108, 150, 146, 198, 198, 213, 211, 197, 189, 175, 177, 159, 168, 136, 137, 107, 98, 82, 82, 81, 95, 104, 112, 126, 116, 132, 125, 132, 132, 137, 129, 137, 119, 120, 113, 105, 109, 111, 119, 129, 140, 135, 149, 130, 143, 141, 144, 163, 152, 163, 150, 134, 128, 105, 109, 105, 112, 117, 121, 110, 109, 91, 85, 87, 77, 97, 87, 107, 95, 116, 101, 112, 109, 108, 113, 110, 111, 126, 158, 171, 229, 206, 236, 198, 189, 168, 160, 152, 151, 145, 121, 125, 82, 100, 79, 109, 111, 144, 142, 157, 152, 137, 144, 116, 117, 98, 93, 83, 92, 86, 111, 112, 137, 152, 157, 164, 150, 140, 125, 121, 115, 125, 123, 126, 120, 119, 114, 125, 131, 140, 152, 139, 139, 120, 111, 106, 107, 112, 115, 113, 103, 98, 87, 94, 97, 111, 117, 119, 120, 109, 117, 109, 117, 124, 127, 130, 130, 128, 155, 177, 201, 221, 205, 193, 163, 147, 133, 141, 128, 133, 112, 93, 94, 83, 109, 130, 150, 161, 165, 139, 143, 118, 119, 126, 114, 117, 106, 89, 92, 99, 111, 144, 153, 165, 156, 142, 121, 121, 110, 121, 121, 112, 110, 94, 104, 118, 141, 161, 167, 153, 137, 115, 105, 111, 118, 126, 131, 116, 112, 106, 99, 112, 111, 112, 124, 113, 121, 124, 121, 122, 119, 104, 100, 100, 90, 110, 111, 121, 129, 134, 145, 190, 201, 227, 222, 193, 179, 141, 133, 119, 118, 105, 108, 90, 107, 116, 144, 167, 177, 178, 156, 143, 117, 124, 107, 121, 107, 97, 90, 88, 101, 123, 140, 147, 152, 127, 127, 111, 113, 110, 111, 101, 98, 97, 96, 119, 130, 153, 163, 168, 155, 153, 135, 132, 132, 122, 121, 112, 110, 110, 127, 126, 138, 123, 117, 108, 104, 110, 110, 116, 108, 106, 98, 103, 103, 122, 124, 132, 128, 117, 110, 117, 117, 125, 136, 117, 130, 121, 136, 178, 203, 210, 214, 163, 141, 126, 112, 129, 131, 120, 116, 115, 111, 146, 155, 167, 166, 143, 116, 116, 101, 112, 115, 100, 97, 87, 98, 119, 151, 157, 164, 142, 125, 107, 111, 107, 121, 115, 110, 110, 112, 131, 145, 159, 150, 146, 124, 129, 123, 140, 138, 140, 126, 120, 118, 127, 138, 138, 137, 113, 111, 97, 110, 107, 118, 105, 103, 95, 101, 110, 124, 129, 131, 132, 118, 129, 121, 133, 133, 139, 125, 129, 117, 116, 127, 132, 133, 138, 129, 144, 177, 177, 199, 175, 146, 130, 122, 120, 140, 130, 124, 120, 113, 125, 150, 160, 161, 157, 120, 113, 101, 97, 100, 98, 87, 95, 100, 121, 145, 160, 159, 150, 134, 114, 119, 115, 119, 123, 119, 115, 126, 128, 139, 143, 132, 125, 121, 117, 122, 130, 128, 133, 132, 133, 140, 144, 137, 132, 122, 109, 113, 112, 114, 122, 115, 113, 111, 104, 108, 116, 118, 130, 127, 127, 120, 113, 108, 109, 113, 120, 135, 135, 148, 142, 144, 144, 144, 145, 151, 134, 132, 121, 126, 161, 170, 186, 165, 138, 117, 117, 119, 145, 140, 134, 123, 118, 126, 140, 148, 136, 127, 95, 97, 92, 108, 114, 119, 115, 118, 123, 139, 149, 149, 147, 127, 125, 111, 115, 114, 115, 111, 119, 120, 132, 140, 137, 135, 125, 120, 122, 131, 133, 137, 129, 123, 121, 124, 123, 129, 125, 116, 119, 118, 121, 127, 120, 119, 117, 117, 125, 131, 128, 125, 120, 112, 113, 110, 111, 116, 121, 129, 142, 138, 145, 136, 131, 134, 129, 131, 132, 130, 126, 127, 127, 131, 132, 131, 132, 152, 157, 165, 164, 143, 134, 131, 132, 137, 140, 129, 124, 123, 125, 133, 142, 136, 133, 125, 115, 115, 116, 115, 114, 111, 113, 121, 131, 137, 139, 135, 127, 123, 121, 122, 122, 122, 117, 119, 120, 
};

void setup()
{
 pinMode(trigPin, OUTPUT); // Sets the trigPin as an OUTPUT
  pinMode(echoPin, INPUT); // Sets the echoPin as an INPUT
  Serial.begin(9600);
}

void loop()
{
digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  // Sets the trigPin HIGH (ACTIVE) for 10 microseconds
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  // Reads the echoPin, returns the sound wave travel time in microseconds
  duration = pulseIn(echoPin, HIGH);
  // Calculating the distance
  distance = duration * 0.034 / 2; // Speed of sound wave divided by 2 (go and back)
  // Displays the distance on the Serial Monitor
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");
if(distance > 60){
  
digitalWrite(11, LOW);
  }
  if(distance < 60 && distance >= 50){
  
    startPlayback(sample50, sizeof(sample50));
 delay(700);
  }
  else if(distance < 50 && distance >=40){
   startPlayback(sample40, sizeof(sample40));
 delay(700);
  }
  else if(distance < 40 && distance >=30){
    startPlayback(sample30, sizeof(sample30));
 delay(700);
  }
  else if(distance < 30 && distance >=20){
    startPlayback(sample20, sizeof(sample20));
 delay(700);
  }
  else if(distance < 20 && distance >=10){
    startPlayback(sample10, sizeof(sample10));
 delay(700);
  }
  else if(distance < 10 && distance >=0){
    startPlayback(sample0, sizeof(sample0));
 delay(700);
  }

}
Credits

dimitarkino

2 projects • 0 followers
Arduino Uno talking parking assistant

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Software apps and online services

Hand tools and fabrication machines

Story

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Arduino talkig parking assistant

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dimitarkino

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Arduino Uno talking parking assistant

Arduino Uno talking parking assistant

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

Circuit

Code

Arduino talkig parking assistant

Credits

dimitarkino

Comments
