06-27-2020, 03:15 PM
I'll tell you what you need, but it's on you to find parts.
You'll need a USB to TTL serial adapter that handles 3.3V (you must make sure it's 3.3V or you'll fry the board - a lot of them default to 5V, some are 5V only), then a 3 ring 3.5mm stereo headphone jack. I think the 4 ring ones work too, but that's not what I had laying around.
There are a few writeups floating around on how to wire stuff, though the pinout is on the wiki as well.;
However, if your cable uses at all standard colors, you'll put (on the TTL serial adapter side):
- Braid to ground
- White to RX
- Red to TX (optional, if you're just pulling logs off, no need to connect this)
Serial configuration is 1500000 baud (1.5Mbaud), 8N1, and you'll need to flip the switch inside the laptop to make the headphone jack work as the UART. See the wiki.
You'll need a USB to TTL serial adapter that handles 3.3V (you must make sure it's 3.3V or you'll fry the board - a lot of them default to 5V, some are 5V only), then a 3 ring 3.5mm stereo headphone jack. I think the 4 ring ones work too, but that's not what I had laying around.
There are a few writeups floating around on how to wire stuff, though the pinout is on the wiki as well.;
However, if your cable uses at all standard colors, you'll put (on the TTL serial adapter side):
- Braid to ground
- White to RX
- Red to TX (optional, if you're just pulling logs off, no need to connect this)
Serial configuration is 1500000 baud (1.5Mbaud), 8N1, and you'll need to flip the switch inside the laptop to make the headphone jack work as the UART. See the wiki.
