updated ebay link for preflashed esp

Author: hackgnar

README.md

@@ -6,7 +6,7 @@ The purpose of BLE CTF is to teach the core concepts of Bluetooth Low Energy cli
 ## Setting Up the CTF
 In order to set up the CTF you will need the following:
 1. The code in this repository to build the CTF GATT server
-2. An esp32 microcontroller ([I sell overpriced pre-flashed ones here](https://www.ebay.com/itm/BLE-CTF-ESP32-Development-Board-2-4GHz-WIFI-Bluetooth/173355878016?hash=item285cd0c680:g:GZgAAOSwiMRbGeKU))
+2. An esp32 microcontroller ([I sell overpriced pre-flashed ones here](https://www.ebay.com/itm/173370426012?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649))
 3. A Linux box (OSX/Win + Linux VM works) with a bluetooth controller or a bluetooth usb dongle ([I ❤️ UD100s](https://www.amazon.com/Sena-UD100-Bluetooth-Class1-Adapter/dp/B01BHD7WR2/ref=cm_cr_arp_d_product_top?ie=UTF8))
 4. Bluetooth tools such as Bluez tools (hcitool, gatttool, etc) or [bleah](https://github.com/evilsocket/bleah)
 

main/gatts_table_creat_demo.c

@@ -1067,8 +1067,8 @@ void app_main()
 {
     esp_err_t ret;
 
-    uint8_t new_mac[8] = {0xDE,0xAD,0xBE,0xEF,0xBE,0xEF};
-    esp_base_mac_addr_set(new_mac);
+    //uint8_t new_mac[8] = {0xDE,0xAD,0xBE,0xEF,0xBE,0xEF};
+    //esp_base_mac_addr_set(new_mac);
 
     /* Initialize NVS. */
     ret = nvs_flash_init();