Rating:

[Logic2](https://www.saleae.com/downloads/) file (recognized by the UART in the name of the challenge and the `.sal` extension)

By opening it, we can see that most of the channels are unused, there's transmission only on channel 0.

Since we already know that is a [UART](https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter) communication, we can use Logic's Async Serial tool to read the contentSince we already know that is a [UART](http://) communication, we can use Logic's Async Serial tool to read the content

We can try the most common Baud Rates to try and decode the serial content (9600, 14400, 19200, 38400, 57600, 115200)

![Settings used](https://i.imgur.com/sldHmSa.png)

With 38400 bps we can read the flag

![flag](https://i.imgur.com/gkyi5w0.png)

Original writeup (https://gist.github.com/SalScotto/41a85941172fe9229ba0af2a2313b8a3).