Make you own 3.5mm serial cable

August 17, 2023
PinePhone, Debug, Hardware

Doing anything close to the kernel/bootloader on PinePhone almost always requires a serial cable, Pine64 store has premade serial cable available for 7$ USD, but making your own serial cable can be both cheaper and more flexible as a DIY cable can support multiple logic level and pinout configuration. Parts Overview # You will need: A 3.5mm audio cable, I got mine from a pair of broken headphone A multimeter for continuity test A USB-Serial adapter, you can get one online for around 3$ USD, make sure it supports 3. ...