A simple Serial compatible library using ESP32 classical bluetooth (SPP)
一个用到了ESP32的蓝牙()库的简单串口兼容库
Download one bluetooth terminal app in your smartphone
在你的手机上下载蓝牙终端app
For Android
For IOS
Flash an example sketch to your ESP32
给你的esp32烧写一个例程
Scan and pair the device in your smartphone
用你的手机扫描并配对蓝牙
Open the bluetooth terminal app
打开app
函数介绍:
Serial.available()
:返回串口缓冲区中当前剩余的字符个数。
Serial.print()
:发送的是字符,
Serial.write()
:发送的字节.
代码:
//This example creates a bridge between Serial and Classical Bluetooth (SPP)
//and also demonstrate that SerialBT have the same functionalities of a normal Serial
//这个例程为串口和传统蓝牙架设了一座桥梁
//同时也演示了SerialBT和普通的Serial具有一样的功能
#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
BluetoothSerial SerialBT;
void setup() {
Serial.begin(115200);
SerialBT.begin("ESP32test"); //蓝牙模块名称
Serial.println("蓝牙已启动,你可以配对了!");
}
void loop() {
if (Serial.available()) {
SerialBT.write(Serial.read());
Serial.println("由SerialBT打印");
}
if (SerialBT.available()) {
Serial.write(SerialBT.read());
Serial.println("由Serial打印");
}
delay(20);
}