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Acid-Compliant Distributed SQL Enters the Agentic AI Era

https://thenewstack.io/acid-compliant-distributed-sql-enters-the-agentic-ai-era/
1•3littlefish•1m ago•0 comments

UK's Ancient Tree Inventory

https://ati.woodlandtrust.org.uk/
2•thinkingemote•2m ago•0 comments

"DDoSing" EKS and GKE to Study DR for My MSc Dissertation in 2022

https://geiser.cloud/the-day-i-ddosd-amazon-eks-google-gke-to-study-disaster-recovery-for-my-msc-dissertation/
1•geiser•3m ago•0 comments

A Case for Pragmatic Engineering Leadership

https://cacm.acm.org/blogcacm/a-case-for-pragmatic-engineering-leadership/
1•rbanffy•3m ago•0 comments

Databricks and Neon

https://www.databricks.com/blog/databricks-neon
1•davidgomes•4m ago•0 comments

The first year of free-threaded Python – Labs

https://labs.quansight.org/blog/free-threaded-one-year-recap
1•rbanffy•4m ago•0 comments

Oracle Solaris 11.4.81 CBE released

https://blogs.oracle.com/solaris/post/whats-new-in-the-oracle-solaris-11481-cbe-release
1•BSDobelix•5m ago•0 comments

Hope Starts Small Read-Aloud- Chapter 3 Part 4 "Plans"

https://danielsweetser.substack.com/p/hope-starts-small-read-aloud-fd3
1•dmsweetser•14m ago•0 comments

I found mistakes in OpenAI's HealthBench using AI

https://david-gilbertson.medium.com/how-i-found-mistakes-in-openais-healthbench-using-ai-0c5ff67cb5cf
1•Kuinox•19m ago•0 comments

Game devs: Do you spend too much time on auth servers?

1•abstruse1•23m ago•0 comments

Show HN: Planitly – AI Trip Planner, Now More Personalized and Powerful

https://planitly.com
1•superproton•24m ago•0 comments

Flamingos induce vortical traps for prey capture

https://www.pnas.org/doi/10.1073/pnas.2503495122
1•geox•24m ago•0 comments

Ask HN: How can I find solo founders building SaaS products?

2•kartik_malik•28m ago•0 comments

Art of Chording (2022)

https://www.artofchording.com/introduction/
1•Tomte•30m ago•0 comments

Using non-standard fonts in Plain TeX

https://texfaq.org/FAQ-fonts-pln
1•Tomte•30m ago•0 comments

Behind De Moon Off Bunburyland

https://medium.com/luminasticity/behind-de-moon-off-bunburyland-623e056e9da7
1•bryanrasmussen•31m ago•0 comments

Ask HN: Expense-Tracking Browser Extension?

1•v-yanakiev•37m ago•0 comments

Everyone's deploying AI, but no one's securing it – what could go wrong?

https://www.theregister.com/2025/05/14/cyberuk_ai_deployment_risks/
4•rntn•44m ago•0 comments

A single Python function for both async/sync

https://blog.est.im/2025/stdout-04
2•est•47m ago•0 comments

LLM Embeddings Explained: A Visual and Intuitive Guide

https://huggingface.co/spaces/hesamation/primer-llm-embedding
2•eric-burel•47m ago•0 comments

Samsung to adopt hybrid bonding for HBM4 memory

https://www.tomshardware.com/pc-components/dram/samsung-to-adopt-hybrid-bonding-for-hbm4-memory
1•rbanffy•50m ago•0 comments

I built a Next.js boilerplate for P2P and B2C marketplaces – Peerquik

https://www.peerquik.com/
2•eliana_jordan•51m ago•1 comments

Airbnb built a custom media format for transparent video playback at 60 FPS

https://twitter.com/joshuapekera/status/1922386371408232797
1•dvrp•53m ago•0 comments

Vulnerabilities in the hidden magic of Lodash, Ramda and Underscore

https://positive.security/blog/lodash-ramda-underscore-vulnerabilities
5•rook_line_sinkr•58m ago•0 comments

ARMv9 Architecture Helps Lift Arm to New Financial Heights

https://www.nextplatform.com/2025/05/12/armv9-architecture-helps-lift-arm-to-new-financial-heights/
1•rbanffy•1h ago•0 comments

Factorio lets fix video #2

https://www.youtube.com/watch?v=uHRrWZ-3hHg
1•n1c•1h ago•0 comments

Show HN: I built a simple AI-powered ATS for small teams

https://applisights.com
2•rajathhegde•1h ago•0 comments

If Congress cancels the SLS rocket, what happens next?

https://arstechnica.com/space/2025/05/if-congress-actually-cancels-the-sls-rocket-what-happens-next/
2•rbanffy•1h ago•0 comments

Fluxus v0.2.0 Published

https://crates.io/crates/fluxus
1•lispking•1h ago•0 comments

How RDMA Became the Fuel for Fast Networks (2020)

https://blogs.nvidia.com/blog/what-is-rdma/
1•transpute•1h ago•0 comments
Open in hackernews

How to Build a Smartwatch: Picking a Chip

https://ericmigi.com/blog/how-to-build-a-smartwatch-picking-a-chip/
52•rcarmo•3h ago

Comments

mrheosuper•1h ago
Interesting they did not go with 2-chip design(1 for main application, 1 for BLE stuff). Which is sometime makes sense because high power mcu usually does not have RF
mschuster91•54m ago
the more chips you have, the more complex the project becomes. BOM is one thing, every chip needs support passives and oscillators, but now you also need to coordinate communication between the chips, you need to devise a way to update firmwares and access both chips for debugging purposes... that might be worth to trade off for less battery life.
mrheosuper•30m ago
in my experience they are not that much difference between 2 design. The BLE FW is a binary blob that you will download at boot with 2 chip-design, or load it to correct address with single chip-design.

From the CPU perspective, they are the same

bArray•52m ago
The "high-end" modern MCUs are pretty great, you have the NRF offerings, but also the likes of the ESP32 where you can get Bluetooth and WiFi in a single package.

Personally these days I would lean towards the ESP32, they continue to iterate on it nicely and it has great community support. I'm personally developing a smart watch platform based on micropython.

jsheard•45m ago
Aren't ESP32s way more power hungry than typical BT-only parts?
bArray•18m ago
Not insanely for a smart watch. Your smart watch battery will be something like 200mAh, so for 20 hours you need to average 10mAh. With zero optimisation, screen refresh rate at 30+fps, I have smart watch chewing 30mAh.

Getting down to 10mAh is not so bad. If you're not actively driving the display, you can under-clock significantly [1], if you're not using WiFi you can turn the modem off [2].

[1] https://docs.espressif.com/projects/esp-idf/en/stable/esp32/...

[2] https://docs.espressif.com/projects/esp-idf/en/stable/esp32/...

mrheosuper•15m ago
no, esp32(the original one) is insanely power hungry, especially its radio.

Also 20 hours of runtime is horrible.

mrheosuper•28m ago
I would not consider ESP32 high-end MCU, it still lacks many peripheral(DSP, GPU), its core clock is not high(only 240mhz iirc).

Recently they release ESP32P4, with very strong performance, but like you guess, without Radio

alin23•1h ago
Glad to finaly see someone in the low-power chip industry going in the open source direction. Thanks for the insight!

When I saw rePebble be announced, I signed up for it right away. Only later I realized I actually don't want a smartwatch, I want a dumb watch with vibration notifications.

I know I'm in the minority, but it's a niche that has a few very interested people in it [0] [1] [2]

After wearing the Casio F105 for the past 2 years, I can't go back to something larger, heavier or thicker than this. I could accept weekly battery charging for the benefit of having some bluetooth functionality.

So nowadays I'm looking for a super small bluetooth chip that can power a small vibration motor, which can receive all notifications from my iPhone. I would like to glue that chip, motor and a small lithium battery between the two straps of my F105, because in my tests it seems I don't notice if I add a small weight there.

I still remember when I first used my first Mi Band 1, a forgotten fitness band that had no display, just 3 RGB LEDs that could even get specific colors based on the app that sent the notification. I could know right away when I got a blue Messenger chat that I needed to answer now, or a yellow Google Keep reminder that I could ignore until I got back to my computer.

[0] https://www.reddit.com/r/pebble/comments/9xw2j2/im_looking_f...

[1] https://www.reddit.com/r/smartwatch/comments/174hq9x/need_a_...

[2] https://tildes.net/~tech/18nf/smartwatch_primarily_for_notif...

0xEF•51m ago
I still rock my OG Pebble and while I am excited they're coming back, I have no plans to upgrade.

Like you, my needs are simple; vibrating alarm, notifications, but with one key factor; I need a display that I can read in broad daylight that plays nice with my far-sighted eyes. The eInk display on the OG Pebbles hits the mark. Being able to read a text without pulling out my phone is also nice.

Plus they can be got on eBay for about $30 USD and a fresh battery is about $15, so they don't break the bank. The Rebble.io community's work is still functioning well enough for my use, as well.

MrAlex94•40m ago
Would Withings[1] watches not fit the bill? I have a ScanWatch and the battery life lasts almost a month.

1: https://www.withings.com/

alin23•34m ago
The Scanwatch Light seems to be very close to what I need. While they're priced reasonably for what they offer, they're crazy expensive for what I would need. I'm really not interested in fitness or sleep tracking these days anymore.

I'm also a bit scared of the many "charging issues" some people seem to have with them after a few months, but I guess every batch has a few bad devices so I could hopefully return it.

Thanks for the recommendation! I might try one soon.

stateoff•49m ago
More information on the chip here: https://www.cnx-software.com/2025/05/14/sifli-sf32lb52j-big-...
rgoulter•15m ago
"The SDK is open source" Oh, a BLE MCU with open source code SDK?

AFAICT, the BLE code is provided as a binary blob. https://github.com/OpenSiFli/SiFli-SDK/tree/6c82a9b15db49871...

Which isn't a problem. But, I wish if something is described as "open source", you could read the source code for it.

pjc50•2m ago
BLE radio device firmware is always going to be provided as binary blobs for a combination of IP and regulatory reasons.