竹北網站架設

2023-01-30 00:21:02rodgersbg4

若何用藍芽Bluetooth連線控制 Arduino

留言 0 收藏 0 推薦 0

文章出處：網頁設計,網站架設 ,網路行銷,網頁優化,SEO - NetYea 網頁設計

學會Arduino根基操控後
一定會想學會無線遙控，如藍芽Bluetooth, Wifi
這篇申明藍芽Bluetooth操控
結果圖

影片

代碼：

// Include necessary libraries
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
//#include <BLE2902.h>
//#include <Wire.h>
// 界說 UUIDs （注意要與App Inventor內容對應）
#define SERVICE_UUID "C6FBDD3C-7123-4C9E-86AB-005F1A7EDA01"
#define CHARACTERISTIC_UUID_RX "B88E098B-E464-4B54-B827-79EB2B150A9F"
#define CHARACTERISTIC_UUID_TX "D769FACF-A4DA-47BA-9253-65359EE480FB"
// 定義LM35 ESP32 GPIO接腳
const int analogIn = A0;
int RawValue= 0;
double Voltage = 0;
double tempC = 0;
double tempF = 0;
String BLE_Code;
BLECharacteristic *pCharacteristic;
bool deviceConnected = false;
// Handle received and sent messages
boolean ledState=false;
String message = "";
char incomingChar;
// Temperature Sensor 與led接腳變數
float temperature = 0;
const int ledPin = 2;
// 設定 callbacks onConnect & onDisconnect函數
class MyServerCallbacks: public BLEServerCallbacks {
void onConnect(BLEServer* pServer) {
deviceConnected = true;
};
void onDisconnect(BLEServer* pServer) {
deviceConnected = false;
}
};
// 設定 callback function 當收到新的資訊 (from the Android application)
class MyCallbacks: public BLECharacteristicCallbacks {
void onWrite(BLECharacteristic *pCharacteristic) {
std::string rxValue = pCharacteristic->getValue();
BLE_Code="";
if(rxValue.length() > 0) {
Serial.print("領受資料為 : ");
for(int i = 0; i < rxValue.length(); i++) {
BLE_Code+=rxValue[i];
Serial.print(rxValue[i]);
}
Serial.println();
BLE_Code.toUpperCase();
Serial.println(BLE_Code);
if(BLE_Code.indexOf("LED")==0)
{
ledState=!ledState;
Serial.println(ledState);
}
if(BLE_Code.indexOf("ON")==0)
{
Serial.println("LED 點亮!");
ledState=true;
}
else if(BLE_Code.indexOf("OFF")==0) {
Serial.println("LED 熄滅!");
ledState=false;
}
}
}
};
void setup() {
Serial.begin(115200);
pinMode(ledPin, OUTPUT);
// 建立BLE Device
BLEDevice::init("ESP32_WeMos1");
// 確立BLE Server
BLEServer *pServer = BLEDevice::createServer();
pServer->setCallbacks(new MyServerCallbacks());
// 建立BLE Service
BLEService *pService = pServer->createService(SERVICE_UUID);
// 確立BLE Characteristic
pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID_TX,
BLECharacteristic::PROPERTY_NOTIFY);
// pCharacteristic->addDescriptor(new BLE2902());
BLECharacteristic *pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID_RX,
BLECharacteristic::PROPERTY_WRITE);
pCharacteristic->setCallbacks(new MyCallbacks());
// 起頭（起）service
pService->start();
// 開始（起）advertising
pServer->getAdvertising()->start();
Serial.println("期待BLE手機連線....");
digitalWrite(ledPin,LOW);
delay(500);
digitalWrite(ledPin,HIGH);
delay(500);
digitalWrite(ledPin,LOW);
}
void loop() {
// Check received message and control output accordingly
if (ledState)
digitalWrite(ledPin, HIGH);
else
digitalWrite(ledPin, LOW);
delay(20);
}

複製代碼

上一篇：網址若何從http自動轉為https

下一篇：JQuery dialog 分級視窗

你可能感興趣的文章

晚安小雞

17 小時前

晚安小雞

20 小時前

2024/11/15

真的是說謊不用打草稿崽崽我真的服了那種智商是當法官是白癡還是弱智還是眼瞎了？　最好一支塑膠牌尺可以把崽崽的阿白打到

2024-11-15

晚安小雞

12 小時前

…

.... 。 🐻 園內的事先不說了。有些些的不爽。這回不是因為大人的事，是幾隻89生的正常頑劣小子... 不要想了。反正也不是我

19 小時前