Quick Start
1 Run as Administrator
Start SerialSnoop.exe. Without administrator rights the program cannot inject into the target process and serial port enumeration is limited.
2 Choose what to monitor
Pick either entry point:
| Entry point | When to use |
|---|---|
| By COM port | The port is known; monitor it directly |
| By process | The owner is unknown; look up which process holds the port, then inject |
If the target has not opened the port yet, enable wait-for-open and monitoring starts as soon as the port is opened.
3 Inspect and export
- Switch display between HEX, ASCII and Both;
- Direction is shown as RX / TX, and OPEN / CLOSE events are recorded too;
- Export the session when you need to keep it; the export keeps timestamps and direction.
Several targets can be monitored at once without conflict, because monitoring uses user-mode API hooks and does not occupy the physical port.