Bluetooth Low Energy HackMe is is a free, open source tool: hands-on practical introduction to BLE security - without the need of any special hardware. Application simulates various BLE devices using your laptop's built-in Bluetooth adapter. You can actively learn by solving practical hacking challenges using nothing more than just a phone.

Wireshark's official code repository. You can keep the releases coming by donating at https://wiresharkfoundation.org/donate/.