create keyboard code to esp

KeyBoard/KeyBoard.ino

@@ -0,0 +1,163 @@
+#include <WiFi.h>
+#include <BLEDevice.h>
+#include <BLEServer.h>
+#include <BLEUtils.h>
+#include <BLE2902.h>
+
+#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
+
+char ssid[50];      // Buffer ro store SSID   
+char password[50];  // Buffer to store password
+char host[50];      // Buffer to store host IP
+
+int port = 8888;     // Port to Connect
+int mode;           // Mode connect with PC
+
+BLEServer* pServer = NULL;
+BLECharacteristic* pCharacteristic= NULL;
+bool deviceConnected = false;
+bool oldDeviceConnected = false;
+uint32_t value = 0;
+
+class MyServerCallbacks: public BLEServerCallbacks{
+  void onConnect(BLEServer* pServer){
+    deviceConnected = true;
+    Serial.println("Connected");
+  };
+
+  void onDisconnect(BLEServer* pServer){
+    deviceConnected = false;
+    Serial.println("Disconnected");
+  }
+};
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println();
+
+  getmode();
+  // mode = 1;
+  if (mode == 0){
+    Serial.println("USB");
+  }else if (mode == 1){
+    Serial.println("Bluetooth");
+    connectBluetooth();
+  }else if (mode == 2){
+    Serial.println("WiFi");
+    // getWiFiCredential();
+    // connectWiFi();
+  }
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  if (mode == 0){
+    Serial.println('A');
+  }else if (mode == 1){
+    sendBluetooth('A');
+  }else if (mode == 2){
+    // sendWiFi('A');
+  }
+  delay(300);
+
+}
+
+void getmode(){
+  Serial.println("Mode:");
+  while(!Serial.available()){} // Wait for ussid
+  mode = Serial.parseInt();
+  Serial.readBytesUntil('\n', ssid, sizeof(ssid));
+}
+
+void getWiFiCredential(){
+  Serial.println("SSID:");
+  while(!Serial.available()){} // Wait for ussid
+  Serial.readBytesUntil('\n', ssid, sizeof(ssid));
+
+  Serial.println("Password:");
+  while(!Serial.available()){} // Wait for password
+  Serial.readBytesUntil('\n', password, sizeof(password));
+
+  Serial.println("IP Address:");
+  while(!Serial.available()){} // Wait for device IP
+  Serial.readBytesUntil('\n', host, sizeof(host));
+}
+
+void connectWiFi(){
+  WiFi.begin(ssid, password);
+
+  Serial.print("Connecting to WiFi....");
+  while (WiFi.status() != WL_CONNECTED){
+    delay(1000);
+    Serial.print("..");
+  }
+  Serial.println(".");
+  Serial.println("Connected to WiFi");
+}
+
+bool sendWiFi(char data){
+  if (WiFi.status() == WL_CONNECTED){
+    WiFiClient client;
+    if (client.connect(host, port)){
+      Serial.println(data); // TODO: Remove this. this is testing perpose only
+      client.print(data); // Send data
+      client.stop();
+      return true;
+    }
+    return false;
+  }
+  return false;
+}
+
+void connectBluetooth(){
+  // Create the BLE Device
+  BLEDevice::init("ESP32");  
+
+  // Create the BLE Server
+  pServer = BLEDevice::createServer(); 
+  pServer->setCallbacks(new MyServerCallbacks());
+
+  //Create the BLE Service
+  BLEService *pService = pServer->createService(SERVICE_UUID);
+
+  // Create a BLE Charateristic
+  pCharacteristic = pService->createCharacteristic(
+                      CHARACTERISTIC_UUID,
+                      BLECharacteristic::PROPERTY_READ   |
+                      BLECharacteristic::PROPERTY_WRITE  |
+                      BLECharacteristic::PROPERTY_NOTIFY |
+                      BLECharacteristic::PROPERTY_INDICATE 
+                    );
+
+  // Create a BLE Descriptor
+  pCharacteristic->addDescriptor(new BLE2902());
+
+  // Start he service
+  pService->start();
+
+  // Start Advertising
+  BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
+  pAdvertising->addServiceUUID(SERVICE_UUID); 
+  pAdvertising->setScanResponse(false);
+  pAdvertising->setMinPreferred(0x0);
+  BLEDevice::startAdvertising();
+  Serial.println("Waiting a client connection to notify...");
+}
+
+bool sendBluetooth(char data){
+  // Notify changed data
+  if (deviceConnected){
+    pCharacteristic->setValue((uint8_t*)&data, 1);
+    Serial.println(data); // TODO: Remove this. this is testing perpose only
+    pCharacteristic->notify();
+    return true;
+    //delay(300); // TODO:To avoid congestion
+  }
+  return false;
+}
+
+void bluetoothReconect(){
+  pServer->startAdvertising(); // Restart advertising
+  Serial.println("start advertising");
+}