kws-x1-standalone-rs
Open source Rust firmware for the KOWSI KWS-X1 USB C meter. It shows live power, lists everything your charger offers over USB PD, lets you ask for fixed or PPS voltages and can test a cable at 5 A. Built on Embassy, no vendor firmware needed.
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This is 1 of 115 launches in embedded systems and RF hardware tools — see how it stacks up on momentum and crowding →
23 other launches read as similar to this one →
Details
- External ID
- 1412575541
- Source
- GITHUB
- Company
- —
- Product
- kws-x1-standalone-rs
- Website domain
- github.com
- Launched
- Oct. 10, 2026
- Cohort
- —
- Upvotes
- 10
- Upvotes percentile
- 0.10
- Tags
- cortex-m4, custom-firmware, embassy, embedded-rust, firmware, fusb302, hc32f460, kowsi, kws-x1, no-std, open-source-firmware, power-meter, pps, rust, usb-c, usb-pd, usb-power-delivery, usb-tester
Enrichment
- Niche
- embedded systems and RF hardware tools
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- open source rust firmware for usb c power meters
- Manually corrected
- False
Could you build this?
No This is bare-metal embedded Rust firmware running on a hardware microcontroller to handle low-level USB Power Delivery (USB-PD) negotiation and power meter ICs.
What it would actually take: The project requires an embedded Rust toolchain utilizing the Embassy async runtime targeted to a specific microcontroller architecture (e.g., STM32, RP2040, or WCH). Key challenges include implementing USB-PD BMC physical layer protocol negotiation, PPS (Programmable Power Supply) message handling, ADC/INA calibration, and low-level hardware safety checks at 5A loads. Building this requires electrical engineering knowledge, hardware debugging tools (logic analyzer, oscilloscope), and embedded systems firmware experience.
Competitors
Other products that read as similar to this one — 23 launches clear the similarity bar, closest 8 shown.
Attention rank: #23 of 24 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 327 days after the earliest competitor.
- We built an open USB-C Power Delivery analyzer and programmable sink · hn · 2026-08-05 · 8 upvotes · similarity 0.40
- WhatCable, a tiny menu bar app for inspecting USB-C cables · hn · 2026-05-01 · 566 upvotes · similarity 0.40
- esp32-fpv-receiver · github · 2026-10-03 · 13 upvotes · similarity 0.38
- WhatCable · ph · 2026-05-24 · 266 upvotes · similarity 0.37
- Polaris · ph · 2026-09-17 · 8 upvotes · similarity 0.37
- Smart Kablo · ph · 2026-09-10 · 2 upvotes · similarity 0.36
- PC4713 · ph · 2026-09-12 · 1 upvotes · similarity 0.35
- mttl_w01_standalone · github · 2026-10-07 · 18 upvotes · similarity 0.35
Other launches for this product
- No other launches for this product.