Making an 1800mah e-ink device last up to 6 months
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
HN · launched Feb 24, 2026 · 9 upvotes (top 51%) · 0 views
Niche: open-source hardware and maker electronics · 180 launches, 3 in the last 7 days ▼ -73% · Explore this niche →
Category and tags
- Horizontal
- Hardware & robotics
- Prosumer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 180 launches in open-source hardware and maker electronics →
Could you build this?
No Achieving ultra-low-power embedded operation lasting 6 months on an 1800mAh battery requires specialized hardware design, deep sleep micro-controller optimization, and power profiling.
What it would actually take: This project requires custom PCB hardware engineering (e.g. ESP32, nRF52, or STM32 architecture) with rigorous power rail management and quiescent current minimization (<10-20µA in deep sleep). The firmware involves real-time operating systems (FreeRTOS or bare-metal C), power-budgeted Wi-Fi handshakes, and partial refresh management of SPI-driven e-ink displays. This demands specialized embedded systems, firmware, and electrical engineering expertise.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 182 launches clear the similarity bar, closest 8 shown.
Attention rank: #81 of 183 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 105 days after the earliest competitor.
- rekindle · github · 2026-10-22 · 15 upvotes · similarity 0.53
- Stop Destroying Your Charging Cables · hn · 2026-04-26 · 11 upvotes · similarity 0.50
- AOHi · ph · 2026-11-03 · 3 upvotes · similarity 0.49
- A virtual thermal printer for testing ESC/POS receipts · hn · 2026-06-07 · 7 upvotes · similarity 0.49
- NFC Energy-Harvesting PCB Business Card with an MCU · hn · 2026-08-28 · 231 upvotes · similarity 0.46
- 32V TENS device from built from scratch under $100 · hn · 2025-11-17 · 70 upvotes · similarity 0.45
- Metalio-E-INK4-Plus · github · 2026-09-30 · 10 upvotes · similarity 0.45
- Inkwell · hn · 2026-07-02 · 77 upvotes · similarity 0.44
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.