We built an open USB-C Power Delivery analyzer and programmable sink
Title: Show HN: We built an open USB-C Power Delivery analyzer and programmable sink Hi HN! We’re Arbi, Marco, and Rob, and we built Dr. PD to make USB-C power problems easier to understand. It sits between a power source and device, captures and decodes their USB-PD negotiation, and correlates it with voltage and current measurements. It can also act as a programmable sink, with support for fixed supplies, PPS, AVS, and USB-PD 3.2 EPR up to 240 W. Commercial USB-PD analyzers are often priced beyond the reach of hobbyists and independent designers. We are on a mission to make high-quality…
We built an open USB-C Power Delivery analyzer and programmable sink launched on August 5, 2026 with 8 votes, #1,241 of 23,274 launches that month and more than 75% of that year's launches.
What it does
An open-source USB-PD protocol analyzer that supports EPR and can act as a programmable sink - T76-org/drpd
Dr. PD is a fully-featured USB Power Delivery (USB-PD) analyzer and programmable sink. It is designed to help characterize and troubleshoot USB-PD devices like chargers, cables, and sink devices. Dr. PD will be available for crowdfunding soon through Crowd Supply. Visit our prelaunch page to sign up and receive updates on the project, including the crowdfunding launch. Dr. PD can capture and decode USB-PD messages, measure voltage and current, and even emulate a USB-PD sink device to test chargers and cables under various conditions. You can access the full documentation for Dr. PD on the T76 website . The documentation includes a user manual, hardware and firmware design files, and…from github.com
In the maker’s words, at launch
Title: Show HN: We built an open USB-C Power Delivery analyzer and programmable sink Hi HN! We’re Arbi, Marco, and Rob, and we built Dr. PD to make USB-C power problems easier to understand. It sits between a power source and device, captures and decodes their USB-PD negotiation, and correlates it with voltage and…
Does a similar job
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Source: Show HN post ↗ · launch text quoted in part
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