Here is some stuff I bought when I first got started:
https://www.amazon.com/gp/product/B07DXS86G7/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
BBAI-64 UART connector to FTDI Cable:
https://my.element14.com/element14/1103004000156/beaglebone-ai-serials-cable/dp/3291081
BBAI-64 Fan connector Cable:
https://www.digikey.com/en/products/detail/molex/0151340406/6198203
When I first got started. I thought: “I will get the PWM fan working first”. I quickly gave up on that. I then watched Benedict Hewson perform some magic, Developing the BONE-FAN overlay and getting it working. I was blown away. I still haven’t gotten the PWM fan working. I always figured at some point it would just start working. I believe the key secrets are alluded to in this specific post:
@benedict.hewson what would we have to do to get your BONE-FAN overlay working?
Regards,
Fred Eckert