Anyone interested in BLE might also enjoy this blog post about the Fuze Multi-Card[0]. It mentions the tools btlejuice[1], gattacker[2] and crackle[3].

[0] https://www.elttam.com.au/blog/fuzereview/

[1] https://github.com/DigitalSecurity/btlejuice

[2] https://github.com/securing/gattacker

[3] https://github.com/mikeryan/crackle