1. USB serial cables and jumper wire.
- FTDI chip TTL-232R-3V3, USB to TTL Serial Cable(3.3V)-1.8m (for example, http://akizukidenshi.com/catalog/g/gM-05840/)
- bread board jumper wire (female/male cables)(for example, http://akizukidenshi.com/catalog/g/gP-03471/)
- Raspberry PI
2. pin assigment
If you use another USB serial cable, please check your data sheet of your USB serial cable.
3. cabling sample
I use this Serial cable for FreeBSD/RaspberryPI project.