Page 133 - KEC Khaitan C8.2 Flipbook
P. 133
o “S” for Stop
Testing App Connectivity
● Ensure Bluetooth module is paired with the smartphone.
● Test sending commands and observe serial output in Arduino.
Building and Programming the Smart Robot Car
Writing the Final Arduino Code
#include <SoftwareSerial.h>
SoftwareSerial BTSerial(10, 11); // RX, TX
#define IN1 6
#define IN2 7
#define IN3 8
#define IN4 9
void setup() {
Serial.begin(9600);
BTSerial.begin(9600);
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(IN3, OUTPUT);
pinMode(IN4, OUTPUT);
Hands-On Project 131

