UM25C USB Power Meter: The $20 Tool I Use Every Day
Logging voltage sag, peak current draw, and cable resistance with a $20 meter has saved hours of oscilloscope time during USB-C bring-up. Workflow and caveats.
Logging voltage sag, peak current draw, and cable resistance with a $20 meter has saved hours of oscilloscope time during USB-C bring-up. Workflow and caveats.
Overview
This note is part of the field-notes archive generated for this site. The summary below is the published excerpt; you can expand the full write-up anytime in the CMS.
Related notes
Tags
- usb
- power-measurement
- hardware-review
- tools
- test-equipment
Manish Bookreader
Electronics enthusiast, Embedded Systems Expert, Linux/Networking programmer, and Software Engineer passionate about AI, electronics, books, and cooking.