i bought this 4wd Arduino kit to assemble but i don't know nothing in how to actually make it move
i don't have quite the experience yet for this but i need help to code it . But i've assembled it according to this diagram
What should i do
Begin by writing, in detail, what you want to do with the kit. Keep rewriting that document by adding details about how you want the things to happen, and the order or sequence of the steps to make that happen.
Eventually you will need to prepare to write a simple program to test the logic you have written for a single component of the kit so you begin to learn how to "program" to make something happen.
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Before spending any more money get a copy of the Arduino Cookbook, read it, and do each of the projects related to hardware on your car. That will get you started. This will take a few weeks.
Here is how to test the devices individually...
The thing is i don't have that much time in my hands and it's for a school project that's due next week i guess I'll need to find something similar to mine and just edit the code myself
Start somewhere... you pick the device... and ask anything. I tested all the programs from the link in Post #4, where I put the programs for the devices in order of ease-of-programming.
Well thank you but when i try to connect to Bluetooth it just says can't communicate when i put the 1234 pin code . any idea what causes that ? i have the HC06 module
Try 123456
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Well the problem was with my phone thank you but now i can't seen to get neither the obstacle avoidance mode and ir tracing to work
Here's the code
#include "IR_remote.h"
#include "keymap.h"
IRremote ir(12);
#include <Servo.h>
String BT_value;
String BT_value_temp;
volatile boolean Funtion_FLag;
volatile int Left_Tra_Value;
volatile int Center_Tra_Value;
volatile int Right_Tra_Value;
volatile int Black;
volatile int white;
volatile int Front_Distance;
volatile int Left_Distance;
volatile int Right_Distance;
volatile char IR_Car_Mode;
volatile boolean IR_Mode_Flag;
Servo servo_A2;
void Infrared_Tracing() {
Left_Tra_Value = digitalRead(9);
Center_Tra_Value = digitalRead(10);
Right_Tra_Value = digitalRead(11);
if (Left_Tra_Value != Black && (Center_Tra_Value == Black && Right_Tra_Value != Black)) {
Move_Forward(130);
} else if (Left_Tra_Value == Black && (Center_Tra_Value == Black && Right_Tra_Value != Black)) {
Rotate_Left(180);
} else if (Left_Tra_Value == Black && (Center_Tra_Value != Black && Right_Tra_Value != Black)) {
Rotate_Left(160);
} else if (Left_Tra_Value != Black && (Center_Tra_Value != Black && Right_Tra_Value == Black)) {
Rotate_Right(160);
} else if (Left_Tra_Value != Black && (Center_Tra_Value == Black && Right_Tra_Value == Black)) {
Rotate_Right(180);
} else if (Left_Tra_Value == Black && (Center_Tra_Value == Black && Right_Tra_Value == Black)) {
STOP();
}
}
void Move_Backward(int car_speed) {
digitalWrite(2, LOW);
digitalWrite(4, HIGH);
digitalWrite(7, LOW);
digitalWrite(8, HIGH);
analogWrite(5, car_speed);
analogWrite(6, car_speed);
}
void Move_Forward(int car_speed) {
digitalWrite(2, HIGH);
digitalWrite(4, LOW);
digitalWrite(7, HIGH);
digitalWrite(8, LOW);
analogWrite(5, car_speed);
analogWrite(6, car_speed);
}
void Rotate_Right(int car_speed) {
digitalWrite(2, LOW);
digitalWrite(4, HIGH);
digitalWrite(7, HIGH);
digitalWrite(8, LOW);
analogWrite(5, car_speed);
analogWrite(6, car_speed);
}
void Rotate_Left(int car_speed) {
digitalWrite(2, HIGH);
digitalWrite(4, LOW);
digitalWrite(7, LOW);
digitalWrite(8, HIGH);
analogWrite(5, car_speed);
analogWrite(6, car_speed);
}
void STOP() {
digitalWrite(2, HIGH);
digitalWrite(4, HIGH);
digitalWrite(7, HIGH);
digitalWrite(8, HIGH);
analogWrite(5, 0);
analogWrite(6, 0);
}
float checkdistance() {
digitalWrite(A1, LOW);
delayMicroseconds(2);
digitalWrite(A1, HIGH);
delayMicroseconds(10);
digitalWrite(A1, LOW);
float distance = pulseIn(A0, HIGH) / 58.00;
delay(10);
return distance;
}
void Ultrasonic_Avoidance() {
Front_Distance = checkdistance();
if (0 < Front_Distance && Front_Distance <= 20) {
STOP();
delay(100);
servo_A2.write(180);
delay(500);
Left_Distance = checkdistance();
delay(100);
servo_A2.write(0);
delay(500);
Right_Distance = checkdistance();
delay(100);
if (Right_Distance <= Left_Distance) {
Rotate_Left(255);
servo_A2.write(90);
delay(300);
} else {
Rotate_Right(255);
servo_A2.write(90);
delay(300);
}
} else {
Move_Forward(150);
}
}
void IR_remote_control() {
switch (IR_Car_Mode) {
case '0xFF4AB5':
Move_Backward(255);
delay(300);
STOP();
IR_Car_Mode = ' ';
break;
case '0xFF18E7':
Move_Forward(255);
delay(300);
STOP();
IR_Car_Mode = ' ';
break;
case 'FF10EF':
Rotate_Left(255);
delay(300);
STOP();
IR_Car_Mode = ' ';
break;
case '16734885':
Rotate_Right(255);
delay(300);
STOP();
IR_Car_Mode = ' ';
break;
case 'FF5AA5':
STOP();
IR_Car_Mode = ' ';
break;
}
if (ir.getIrKey(ir.getCode(), 1) == IR_KEYCODE_UP) {
IR_Car_Mode = '0xFF18E7';
IR_Mode_Flag = true;
} else if (ir.getIrKey(ir.getCode(), 1) == IR_KEYCODE_LEFT) {
IR_Car_Mode = '16716015';
IR_Mode_Flag = true;
} else if (ir.getIrKey(ir.getCode(), 1) == IR_KEYCODE_DOWN) {
IR_Car_Mode = '0xFF4AB5';
IR_Mode_Flag = true;
} else if (ir.getIrKey(ir.getCode(), 1) == IR_KEYCODE_RIGHT) {
IR_Car_Mode = 'FF5AA5';
IR_Mode_Flag = true;
} else if (ir.getIrKey(ir.getCode(), 1) == IR_KEYCODE_OK) {
IR_Car_Mode = 'FF38C7';
IR_Mode_Flag = true;
}
}
void setup() {
Serial.begin(9600);
BT_value = "";
BT_value_temp = "";
Funtion_FLag = false;
Left_Tra_Value = 1;
Center_Tra_Value = 1;
Right_Tra_Value = 1;
Black = 1;
white = 0;
Front_Distance = 0;
Left_Distance = 0;
Right_Distance = 0;
IR_Car_Mode = ' ';
IR_Mode_Flag = false;
pinMode(9, INPUT);
pinMode(10, INPUT);
pinMode(11, INPUT);
pinMode(2, OUTPUT);
pinMode(4, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(A1, OUTPUT);
pinMode(A0, INPUT);
servo_A2.attach(A2);
}
void loop() {
while (true) {
while (Serial.available() > 0) {
BT_value_temp = BT_value_temp + ((char)(Serial.read()));
delay(2);
if (!Serial.available() > 0) {
BT_value = BT_value_temp;
BT_value_temp = "";
}
}
if (0 < String(BT_value).length()) {
Serial.println(BT_value);
Serial.println(String(BT_value).length());
if (4 >= String(BT_value).length()) {
if ('%' == String(BT_value).charAt(0) && '#' == String(BT_value).charAt((String(BT_value).length() - 1))) {
if (IR_Mode_Flag == true) {
STOP();
IR_Car_Mode = ' ';
IR_Mode_Flag = false;
}
switch (String(BT_value).charAt(1)) {
case 'F':
Move_Forward(255);
delay(500);
BT_value = "";
break;
case 'B':
Move_Backward(255);
delay(500);
BT_value = "";
break;
case 'L':
Rotate_Left(230);
delay(300);
BT_value = "";
break;
case 'R':
Rotate_Right(230);
delay(300);
BT_value = "";
break;
case 'T':
Infrared_Tracing();
break;
case 'S':
BT_value = "";
STOP();
break;
case 'A':
Ultrasonic_Avoidance();
break;
case 'Z':
break;
}
}
} else {
BT_value = "";
STOP();
}
} else {
STOP();
}
IR_remote_control();
}
}
Is this kit made by Lafvin? They write very sloppy code.
Now that you have your phone connected, write simple sketches to make the IR tracking (i believe those are the sensors pointing down) and then make each motor work through your phone. After both work, the compare those sketches to the original and make corrections.
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