https://www.crowdsupply.com/candysign/hummingkitHey there, we’re the team at CANDYSIGN, and we wanted to share something we’ve been working on to help demystify what’s happening inside the USB-C PD stack.
We just launched HummingKit on Crowd Supply. It’s a software-defined power delivery platform designed for developers, engineers, and anyone who wants total control over their power negotiation.
The Specs:- Controller: ESP32-S3 (Wi-Fi/BLE enabled).
- Power: Supports USB PD 3.1 (EPR) up to 140W (28V/5A).
- Versatility: Works as both a Source and a Sink (Trigger).
- Open Source: Fully programmable via ESP-IDF.
- Integration: Prometheus, MQTT for now, HomeAssistant in near term.
Why we built it: USB-C PD and chargers can often feel like a "black box". We wanted to create a tool that lets you see exactly what’s happening during the power allocation process, log data, and even prototype your own PD-powered devices without needing expensive testing jigs.
We’d love to hear your thoughts, answer any technical questions about the architecture, or hear what kind of features you’d want to see in the firmware!
For now, please subscribe to our Crowd Supply project for further updates!
The current OSS firmware can be found at
https://github.com/ifanrx/IonBridge .
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