#include "BluetoothSerial.h"
#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif
#define RedLed 22
#define GreenLed 23
String recv = "";
BluetoothSerial SerialBT;
void setup() {
Serial.begin(115200);
pinMode(RedLed, OUTPUT);
pinMode(GreenLed, OUTPUT);
SerialBT.begin("ESP32_LED_Control"); //Bluetooth device name
Serial.println("The device started, now you can pair it with bluetooth!");
}
void loop()
{
while (SerialBT.available()) // Read until the bluetooth client is sending.
{
char string = SerialBT.read();
recv = recv + string;
delay(1);
}
if (recv == "A")
{
digitalWrite(RedLed, HIGH);
}
if (recv == "a")
{
digitalWrite(RedLed,LOW);
}
if (recv == "B")
{
digitalWrite(GreenLed, HIGH);
}
if (recv == "b")
{
digitalWrite(GreenLed,LOW);
}
if (recv == "AB")
{
digitalWrite(RedLed, HIGH);
digitalWrite(GreenLed, HIGH);
}
if (recv == "ab")
{
digitalWrite(RedLed, LOW);
digitalWrite(GreenLed, LOW);
}
recv = ""; // clearing the string.
}
esp:VIN
esp:GND.2
esp:D13
esp:D12
esp:D14
esp:D27
esp:D26
esp:D25
esp:D33
esp:D32
esp:D35
esp:D34
esp:VN
esp:VP
esp:EN
esp:3V3
esp:GND.1
esp:D15
esp:D2
esp:D4
esp:RX2
esp:TX2
esp:D5
esp:D18
esp:D19
esp:D21
esp:RX0
esp:TX0
esp:D22
esp:D23
led1:A
led1:C
led2:A
led2:C
r1:1
r1:2
r2:1
r2:2