Added BLE Test fw

examples/BLE/BLE_server/BLE_server.ino

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+/*
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleServer.cpp
+    Ported to Arduino ESP32 by Evandro Copercini
+    updates by chegewara
+*/
+
+// note : Example to test whether the BLE function of the board is normal
+
+#include <Arduino.h>
+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEServer.h>
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+
+#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Starting BLE work!");
+
+  BLEDevice::init("LilyGo-BLE");
+  BLEServer *pServer = BLEDevice::createServer();
+  BLEService *pService = pServer->createService(SERVICE_UUID);
+  BLECharacteristic *pCharacteristic = pService->createCharacteristic(
+                                         CHARACTERISTIC_UUID,
+                                         BLECharacteristic::PROPERTY_READ |
+                                         BLECharacteristic::PROPERTY_WRITE
+                                       );
+
+  pCharacteristic->setValue("Hello World says Neil");
+  pService->start();
+  // BLEAdvertising *pAdvertising = pServer->getAdvertising();  // this still is working for backward compatibility
+  BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
+  pAdvertising->addServiceUUID(SERVICE_UUID);
+  pAdvertising->setScanResponse(true);
+  pAdvertising->setMinPreferred(0x06);  // functions that help with iPhone connections issue
+  pAdvertising->setMinPreferred(0x12);
+  BLEDevice::startAdvertising();
+  Serial.println("Characteristic defined! Now you can read it in your phone!");
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  delay(2000);
+}

firmware/BLE/README.MD

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+
+# BLE Firmware
+
+## 1. Firmware to test whether the BLE function of the board is normal
+
+* **esp32_ble_server.bin** For esp32 , Write address 0x0
+* **esp32s3_ble_server.bin** For esp32s3 , Write address 0x0
+* How to write firmware, please see [here](../GPS_Reset/README.MD)
+
+
+
+
+
+