Page 119 - KEC Khaitan C8.2 Flipbook
P. 119
SoftwareSerial BTSerial(10, 11); // RX, TX
void setup() {
Serial.begin(9600);
BTSerial.begin(9600);
}
void loop() {
if (BTSerial.available()) {
char command = BTSerial.read();
Serial.println(command); // Print received data
}
}
REVISIT
▶ IoT connects everyday devices to each other or the internet.
▶ Bluetooth is ideal for short-range wireless control, perfect for home or classroom projects.
▶ Block-based code can handle Bluetooth messages by checking incoming text and toggling pins accordingly.
▶ Smartphone-Controlled Lamp: A straightforward project to practice sending commands and changing LED
colors.
Introduction to IoT & Wireless Communication 117

