18650-4CHN-SWD-Monitor
Live telemetry for the 18650-4CHN 4-channel Li-ion charger/tester, read straight from the MCU's SRAM over SWD while the stock firmware runs. No firmware mod, nothing written to the device. Python library, CLI and read-only WebSocket stream. Works with a cheap WCH-Link (CMSIS-DAP) via pyOCD.
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GITHUB · launched Nov 7, 2026 · 11 upvotes (top 98%) · 0 views
Niche: hardware monitoring and diagnostic tools · 129 launches, 9 in the last 7 days ▼ -44% · Explore this niche →
Category and tags
- Energy & climate
- Observability & eval
- Developer
- Not AI
- Hobby / open-source project
- 18650
- battery-capacity
- battery-charger
- battery-tester
- cli
- cmsis-dap
- +14 more
Visit website ↗ Source listing ↗
More like this: all 129 launches in hardware monitoring and diagnostic tools →
Could you build this?
Partial The Python library, CLI, and WebSocket stream are vibe-codeable. Reading live telemetry from SRAM requires reverse-engineering the stock firmware's memory layout and working with the debug probe, which needs embedded expertise.
What it would actually take: The stack is pyOCD over a CMSIS-DAP probe, with a parser that maps raw RAM reads to the charger's data structures and a WebSocket server for streaming. The hard part is discovering those structures: you need to disassemble the firmware, locate the variables, and verify them against real measurements without writing to the device. This takes embedded and reverse-engineering skills plus the hardware for validation.
Competitors
Other products that read as similar to this one : 95 launches clear the similarity bar, closest 8 shown.
Attention rank: #96 of 96 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 355 days after the earliest competitor.
- BMS Monitor · ph · 2026-09-20 · 2 upvotes · similarity 0.46
- Voltide · github · 2026-10-30 · 64 upvotes · similarity 0.43
- WhatCable, a tiny menu bar app for inspecting USB-C cables · hn · 2026-05-01 · 566 upvotes · similarity 0.43
- Wacchi · ph · 2026-10-18 · 1 upvotes · similarity 0.41
- 50Ah 8C Pulse NMC Pouch Cell · ph · 2026-09-30 · 1 upvotes · similarity 0.40
- TWS Technology · ph · 2026-09-19 · 1 upvotes · similarity 0.39
- 2.4G-battery-viewer · github · 2026-10-17 · 113 upvotes · similarity 0.39
- BatteryOnPC · ph · 2026-10-12 · 1 upvotes · similarity 0.38
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.