问题描述
我是 arduino 项目的新手.我想请你帮忙.我从 ( http://imall.iteadstudio.com/development-platform/arduino/shields/im130704001.html).他们使用Hm-10蓝牙模块(http://www.jnhuamao.cn/bluetooth.asp?ID=1).Itead Studio 没有使用此屏蔽的示例代码.我不知道如何编程或从 Arduino 发送 AT 命令.
I'm a new bie on arduino projects. I would like to ask you for some help. I bought a BLE Shield for Arduino from ( http://imall.iteadstudio.com/development-platform/arduino/shields/im130704001.html ). They made this shield using Hm-10 Bluetooth module(http://www.jnhuamao.cn/bluetooth.asp?ID=1). Itead Studio has no sample codes using this shield. I have no idea on how to program it or send AT commands from Arduino.
我阅读了数据表中的AT 命令"(ftp://imall.iteadstudio.com/Shield/IM130704001_ITEAD_BLE_Shield/DS_IM130704001_ITEAD_BLE_Shield.pdf)，我尝试使用此代码(http://arduino.cc/en/Reference/SoftwareSerial )但我只收到了命令.
I read the "AT commands" at the data sheet (ftp://imall.iteadstudio.com/Shield/IM130704001_ITEAD_BLE_Shield/DS_IM130704001_ITEAD_BLE_Shield.pdf) and I tried to send "AT commands" from arduino to BLE shield using this code ( http://arduino.cc/en/Reference/SoftwareSerial ) but I only received the commands back.
这里有人用过这个 HM-10 蓝牙模块吗?
Did anybody here ever use this HM-10 bluetooth module ?
我需要一些 arduino 草图来寻求帮助！
I need some arduino sketch for help !
推荐答案
#include <SoftwareSerial.h>
int led = 13;
int bluetoothTx = 2;
int bluetoothRx = 3;
SoftwareSerial bluetooth(bluetoothTx, bluetoothRx);
int baudrate[8] ={4800,9600,14400,19200,28800,38400,57600,115200};
int i = 1;
void setup() {
Serial.begin(9600);
bluetooth.begin(9600);
while(!Serial){}
Serial.write("AT sent");
delay(500);
bluetooth.write("AT+NAME?");
delay(500);
while (bluetooth.available()) {
Serial.write(bluetooth.read());
}
delay(100);
Serial.println("");
bluetooth.write("AT+POWE3");
delay(500);
while(bluetooth.available())
{
Serial.write(bluetooth.read());
}
delay(100);
Serial.println("");
delay(500);
bluetooth.write("AT+CHAR?");
delay(500);
while (bluetooth.available()) {
Serial.write(bluetooth.read());
}
delay(100);
Serial.println("");
delay(500);
bluetooth.write("AT+NAMEFlightline"); //Check Status
delay(500);
while (bluetooth.available()) {
Serial.write((char)bluetooth.read());
}
Serial.println("");
bluetooth.write("AT+CHAR0x2901"); //add charicteristic
delay(500);
while (bluetooth.available()) {
Serial.write(bluetooth.read());
}
Serial.println("");
bluetooth.write("AT+RELI0");
delay(500);
while (bluetooth.available()) {
Serial.write(bluetooth.read());
}
Serial.println("");
bluetooth.write("AT+SHOW1");
delay(100);
while (bluetooth.available()) {
Serial.write(bluetooth.read());
}
Serial.println("");
pinMode(led,OUTPUT);
digitalWrite(led,HIGH);
}
void testAllBaudRates(){
for(int j=0; j<8; j++)
{
bluetooth.begin(baudrate[j]);
delay(100);
Serial.println("boud rate " + String(baudrate[j],DEC) +" i-> "+String(j,DEC));
// Serial.println("");
bluetooth.write("AT");
delay(500);
while (bluetooth.available()) {
Serial.write(bluetooth.read());
Serial.println();
}
delay(100);
}
}
// and now a few blinks of the LED,
// so that we know the program is running
void loop()
{
//Read from bluetooth and write to usb serial
while(bluetooth.available())
{
char toSend = (char)bluetooth.read();
if(toSend == 'x'){
digitalWrite(led,HIGH);
Serial.println("set high");
bluetooth.write("RXOK");
}else if(toSend == 'y'){
digitalWrite(led,LOW);
Serial.println("set low");
bluetooth.write("RXOK");
}
Serial.print(toSend);
}
//Read from usb serial to bluetooth
while(Serial.available())
{
char toSend = (char)Serial.read();
bluetooth.write(toSend);
Serial.print(toSend);
}
}
看看我上面的草图，我有几件事要指出我浪费了时间.
Have a look at my sketch above I have a few things to point out that I wasted time on.
确保你有线路
while(!Serial){}
或者你可能有一个可以工作的屏蔽，但由于串行监视器没有准备好而错过响应.
Or you may get have a working shield but miss the responses as the serial monitor is no ready.
请记住，如果蓝牙模块连接到设备，您将不会收到来自蓝牙模块的响应，以及来自串行监视器的命令.当灯停止闪烁时，它已连接到设备.
remember that you wont get a response from the blue-tooth module, with a command from the Serial Monitor if it is connected to a device. It is connected to the device when the light stops flashing.
如果你运行这个草图，你应该得到这个输出
if you run this sketch you should get this output
AT sent
OK+Set:3
OK+Get:0x2901 <- this may be blank the first time you run it
OK+Set:Flightline
OK+Set:0x2901
OK+Set:0
OK+Set:1
可以在这里找到最全面的 AT 命令列表
the most comprehensive list of AT commands can be found here
[All the AT commands and a good explanation][1]
您需要像我在这里所做的那样了解设备的特性
You will need to at Characteristics to the device as I have done here
bluetooth.write("AT+CHAR?");
或者你会发现它连接到iOS和Android
or you will find it to connect to iOS and Android
如果您要连接到 Android，请使用 BluetoothLE 类而不是蓝牙类.
If you are connecting to Android use the BluetoothLE Classes not Bluetooth ones.
这篇关于如何使用基于HM-10蓝牙模块的BLE Shield?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！