Analyze Saleae Logic MSO binary captures and decode UART, SPI, I2C, and 1-Wire protocols.
npx skills add https://github.com/BrownFineSecurity/iothackbot --skill logicmso
Please help me install this Agent Skill. Skill: logicmso Source: https://github.com/BrownFineSecurity/iothackbot/tree/main/skills/logicmso Command: npx skills add https://github.com/BrownFineSecurity/iothackbot --skill logicmso
Analyzing raw logic analyzer captures from Saleae Logic MSO devices requires manually inspecting transition timings and reverse-engineering protocol encodings, which is slow and error-prone when dealing with unknown signals in hardware reverse engineering or CTF challenges.
.bin export files using the saleae-mso-api library to access transition timestamps, sample rates, and initial signal states.Analyze the attached capture.bin file to identify the protocol and decode any UART data it contains.
High-intent search queries and answers about installing and using this skill.
Export the channel as a .bin file from Saleae Logic, load it with saleae.mso_api.binary_files.read_file, then sample the signal at 1.5, 2.5, 3.5 bit periods after each start bit using the known baud rate. The skill provides a complete decode_uart_byte example for this.
Run analyze_protocol.py with --clusters and --histogram to see the timing distribution of pulse durations. Consistent bit periods that are multiples of a base period suggest UART, reset pulses around 480us suggest 1-Wire, and regular clock patterns suggest SPI or I2C.
The saleae-mso-api package provides read_file in saleae.mso_api.binary_files for loading .bin exports. It exposes chunks containing transition_times, initial_state, sample_rate, and capture begin/end times.
No transitions usually means the signal is stuck high or low, the wrong channel was exported, or the trigger settings in the original capture missed the activity. Verify the correct channel and re-export from the Saleae Logic software.
Yes, run analyze_protocol.py with --export output.csv to write all transitions with timestamps, states, and durations to a CSV file for analysis in spreadsheets or other tools.
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