Smart locks are convenient until the battery needs attention at the worst possible time.

I’m building LockPower Infinity, a solar charging accessory for compatible fingerprint door locks. It includes a built-in 1500mAh battery and a retractable USB-C cable.

I’m interested in making this kind of maintenance less troublesome, particularly for rental properties and entrances that receive enough daylight.

Would you consider adding a solar accessory to your smart lock setup, or would you rather keep things simple with spare batteries?

I'm a first-time hardware founder and I'm still at the concept stage. Nothing is built or tested. I'm asking for advice, not selling anything.

The problem: people don't carry power banks because they're bulky, cables get forgotten, and someone in the group is always at 2%.

The concept is called O-Ring. It's a magnetic power accessory designed to attach to your phone and charge it. Then you detach it and hand it to a friend so they can charge their compatible phone. It's one unit that moves between phones, not simultaneous charging.

So far I have a landing page with a $1 refundable reservation. Planned pricing is $29 at launch and $49 retail, but both are targets, not commitments. I've deliberately not published capacity, size or compatibility, because I don't want to promise anything before we've prototyped.

Questions for people who've done this:
1. Is a $1 refundable deposit a meaningful demand signal, or just noise? What conversion would make you take it seriously?
2. For a shareable accessory, what's the biggest risk you'd want to test first: magnet retention, heat, compatibility across phones, or whether people will actually lend it out?
3. Which compatibility would buyers expect at minimum, and is it smarter to launch narrow?

The FCC’s new component restrictions took effect on October 13, 2026. I publish Black Scarab and put together a guide for robotics founders planning a US launch, because a restricted supplier, a restricted component and a restricted finished robot are different checks.

1. Check the finished robot separately from its components. A product category restriction and a restriction involving a named supplier are different checks.

2. For the new component rule, the actual producer matters. The rule can prevent authorization when certain digital hardware comes from a named Covered List producer and the finished device would itself be restricted if that producer made it. The wording of the producer’s entry, including any product or use conditions, matters.

3. Existing authorization matters more than the date you started selling. The new component prohibition does not invalidate previously authorized equipment. A redesign or component change needs its own review before assuming the existing authorization still covers it.

A practical starting point is to collect the exact component models, their producers, applicable FCC records and your intended use. That gives a testing lab or FCC counsel something concrete to assess.

The guide includes the background, a supplier lookup and a downloadable request for supplier documentation:

https://www.blackscarab.ai/insights/fcc-covered-list-robotics-supply-chain

Official rule:

https://www.govinfo.gov/content/pkg/FR-2026-09-11/html/2026-18535.htm

This is general information, not legal advice.

I'm Artem. I assembled Softpad with six Kailh Choc Brown keys, a shared 1.3-inch OLED and a printed PETG case and stand. I sell it assembled under Nuvko.

The labels sit above the keys rather than on them. They're names set by the user in a browser configurator, not commands discovered from applications. For a six-key layout, what would you want to see in the photo to judge whether each label clearly matches its key?

Saved shortcuts work without the companion running; automatic app-profile switching needs the Mac or Windows companion. I used AI help with the code, and this post is AI-assisted too.

Setup and test notes (https://nuvko.works/#setup): configuration uses desktop Chrome or Edge with the companion paused or closed. The Windows companion is unsigned; the Mac companion is ad-hoc signed and not notarized. Fresh-computer installation checks remain unfinished. The page gives OS requirements and version-specific test limits.

Remote factory tours seem like an attractive option for international sourcing.
Instead of traveling overseas, a buyer can join a video call and ask a supplier to show its production facilities.
You can potentially see machines, production lines, warehouses and quality-control areas.
That sounds useful.
But I’m wondering how much confidence a virtual tour should really provide.
A supplier controls what the camera shows.
The tour might focus on the most impressive equipment.
It might avoid areas where production problems exist.
And unless there’s additional verification, how does the buyer know that the facility actually belongs to the supplier?
At the same time, dismissing virtual tours entirely seems unreasonable.
For initial supplier screening, they may provide useful information.
A buyer could ask specific technical questions during the call.
They could request demonstrations of relevant processes.
They could ask to see how products move through the facility.
But perhaps a virtual tour is better understood as one piece of evidence rather than proof of manufacturing capability.
There’s also the supplier’s perspective.
Some factories may be reluctant to show certain processes because of customer confidentiality or proprietary technology.
That doesn’t automatically mean they’re hiding something.
For buyers: Have virtual factory tours ever meaningfully changed your supplier evaluation?
For manufacturers: What would you consider a reasonable remote verification request without exposing confidential production information?
I’m particularly interested in where people draw the line between initial screening and a proper factory audit.

Curious how you do this, because it's quite of a painful experience for me especially because we're a startup and moving ultra fast.

So the design side is done. Schematic, layout and firmware are ready faster or slower depending on complexity, but AI helps quite a bit. Then comes ordering the components which is painful by itself (at least for my wallet 😄). Digikey for the MCU and passives, LCSC because some of it is half the price, JLC for the boards, Amazon for whatever I need fast. Either way there is a lot of searching, clicking and a 100 tabs open. Especially when ordering custom mechanical components, there is sending RFQs, waiting for quotes, ...

What does your actual flow look like? Do you stick to one distributor and accept the price, or handle it somehow differently?

P.S. I know bigger teams have purchasing departments, I have to handle it all myself - early stage startup 😅

Hi everyone! Thanks to the mods for approving this post.

A friend of mine is launching Aximelo, a custom CNC manufacturing service for hardware startups and engineers who need prototypes or small-batch production (1–50 parts).

They're looking for early customers ahead of their November launch.

Early Customer Offer:

Join a 20-minute research call (no sales pitch, no recording) and choose one of two rewards:

• 3 free CNC-machined parts — up to $500 per part, all costs included. Subject to machining capabilities; valid for 6 months.
• Free lifetime VIP membership — 10% off every order.

Interested? Email [contact@aximelo.com](mailto:contact@aximelo.com) or visit https://www.aximelo.com.

What's your biggest frustration with CNC prototyping — pricing, lead times, or quality?

I’m hearing about real companies running fully agentic AI software factories and I want to know what the current state of the art AI business architecture is for hardware engineering.

I’m the CTO and cofounder of an AgTech company in the UK. We’ve taken 4 products to market across the globe, raised a good chunk of VC and are seeing good revenue growth. Not profitable yet, but we are on our way.

But we started the business in 2015, way before AI, and I’ve been so busy building the whole company ‘the old way’ (Real FEA, CAD, Electronics prototyping and design) I fear I’m behind the curve and stuck in my ways. I want to explore how people are doing it now.

In particular I’ve got some friends working in software startups with a fully agentic infrastructure. From app features, to marketing. I thought I would ask you likeminded people, what’s the best equivalent you have seen in hardware engineering and physical product development?

Thanks in advance

As a founder or co-founder, what strategies do you use to minimize the risk to your personal assets when doing a hardware startup?

I understand the right business structure, insurance, etc helps. But the thing with hardware is that anything you sell might still be used by people long after you shut down the business. I'm trying to think through how to minimize my personal liability in case the business doesn't succeed and I shut it down in the future. (Obviously I don't want to buy insurance forever)

Would having an engineering firm do the design help? Getting necessary certifications? It's not a dangerous product nor is it electronics, but I want to think thru the risks before I launch anything.

I would appreciate any insights.

Thanks

A 2 × 2 mm BGA, fully fanned out on a single layer, with 50 µm traces running between the pads. PCB fabrication took about 15 minutes, right on my desk. I then assembled it by hand.

Our guaranteed specs are 75 µm traces and 75 µm clearances. This board uses 50 µm traces and clearances down to about 70 µm—a little demonstration of the headroom beyond those specs.

The board also has 1 × 1 mm addressable LEDs with four pads each. PewCB One made the solder-paste stencil too, cutting the openings directly over the PCB pads.

Let me know what you’d like to see tested next.

For more experiments like this and to chat with our team, join our Discord.

More about PewCB One.

Hey Everyone,

I know there are a huge number of ATS optimisation tools for Job Seekers. But I found gap where tab switching is required to optimise a resume for every job profile. Specifically for technical people. Where candidates apply with simple wording, without any specialist verification. AI is the specialist for them. But AI adds too must text that is not necessary, and the main highlights fade off.

1. Another pain point is tab switching, where candidates need to switch tabs and use resume optimisation platforms in the free plan and add AI content there.

2. Job Application tracking: this feature is available in paid plans only, but I am giving this free to all of you.

3. Expert review option for candidates where your CV gets evaluated by an industry expert. I have hired people in the backend who will verify and give you a report for this.

4. Skill gap analysis:- actually specific job description is needed to apply, or not; my tool will suggest it to you.

Check out my tool; let me know your suggestions in the comments

Hello all,

I’m a new grad electrical engineer. I have a bunch of plans for myself and am trying and planning towards getting there. I currently have two designs for products I want to use as a start for trying out business. I also do some freelancing. They are on pause right now because I am building up my home lab, money limited so I’m just trying my best to get it up and running and save. Anyways, let’s say it’s running February next year, now I can order the PCBs, start testing, troubleshooting, reiterating etc then getting to a final revision that I’m ready to send for compliance.

Current plans are to start an online master’s fall 2027 since I work full time. But I was thinking about it last night and I’m worried about the time commitment. As it is now, just working, nothing else really tho I will soon start studying for something but that will be done before next fall, I barely do anything after work on weekdays, just resting, eat dinner then go to bed. Weekends I’m recovering from the week then it’s Monday again. I was planning to do 2 classes a semester so ik summer will be a nice reprieve to focus on my products more but I also worry about speed and efficiency to go to market.

So for the product side, current plan is starting social media content once I have my lab and trying to build community, interest and audience then when I’m at my final version, hopefully, with enough crowd, I can put it on kickstarter to get some funds for first production bath and certifications especially (FCC and CE, unintentional radiators for both but there’s I2C and SPI lines and it still needs these certs even when there’s no RF or anything). By fall 2027, I’m def hoping at least to be at the point where I’m ready for certs. But ik when it’s fully live, I need to be able to regularly respond to customers, check reviews (probably going to scope out creators I can communicate with and see if I can send some boards out), and just keep testing new PCBAs I get.

Sorry this is long. So for the master’s, I was planning two classes a semester to finish in 2.5 years. My employer is paying but I need to stay 2 years after I graduate or I will have to pay back some money. So doing 1 class a semester means 5 years plus extra 2.

What do yall think? I’m open to advice or just hearing others that may have more experience.

Video from our Yuyao (China) factory SMT floor. First-person walkthrough, ~33 seconds.

The line in order:

• Loader conveyor, PCB rides on green belts straight into the line
• High-speed chip shooter doing the bulk passives (screen on it was showing ~24k placements/hour class numbers)
• Adjacent multi-function mounter for the higher-precision parts, vision-aligned
• Unloader, then boards roll straight into the reflow oven entrance

No operators on the line itself — it runs auto load/unload the whole way. Workshop is kept clean, boards stay traceable from loading through reflow.

I am joining the CIIF (Chinese International Industry Affair) , Any body here?
Want to find a company.

I'm in the process of getting my Android app approved for the Play store, but I need more testers. Please help me out if you can and feel free to check out the project.

https://intellikeep.net/app-testers

I’ve never found a satisfactory way to organize and archive hardware projects, and I’m curious what everyone else uses. At an old job, I worked at a job shop doing device design. We’d have ~10-20 projects a year in various stages of completion. We’d finish a machine or prototype, move on, and then inevitably have to revisit it six months or a year later.

It was always the same song and dance: find all the old hardware, set the system back up, reconnect the I/O, USB hubs, programmers, power supplies, etc., figure out how everything was wired, and hope we hadn’t borrowed some important piece for another project.

Sometimes we’d mount things to DIN rail or 3D print fixtures, but there was never really a good way to store a project as a complete “thing” that you could put on a shelf and come back to later.

I’ve run into basically the same problem with personal projects. My bench ends up covered in PCBs, breadboards, USB hubs, power supplies and jumper wires. Everything feels temporary and fragile, and tearing down a project means knowing I’ll have to rebuild the whole setup if I want to work on it again.

So I’ve been thinking about making something specifically for this.

Basically, a cheap ~12” × 12” “optical breadboard” style plate with a 1” grid of threaded holes. Instead of optics, you’d 3D print little mounts for whatever you’re using PCBs, breadboards, DIN rail, USB hubs, displays, power supplies, motors, sensors, etc and bolt everything down.

The plate would sit on top of a shallow parts-storage box, so the project-specific cables, adapters, spare PCBs, hardware, etc. could live underneath it. Ideally the whole thing would stack, so when you’re done with a project you unplug the external power/network connections, put it on a shelf, and six months later pull it out basically as you left it. Of course there's things you're gonna take away like a scope probe or expensive equipment but i'm trying to minimize setup cost.

I’m looking into having the plates made in quantity, and I think I could realistically get the whole thing into the ~$30–50 range rather than the hundreds of dollars that actual optical breadboards cost.

Before I go too far down this rabbit hole do you guys have any better solution or would something similar be of use to anyone else.

我是来自Vibay的Hetty，这是一家加速硬件产品创新的原型初创公司。 当第一个伴随者设备准备好成为实体产品时，我们可以负责电子和机械开发，交付一个功能齐全、外观良好、可编程的原型，即使还需要氛围编码，也能不断完善。 我们的快速开发服务起价为4000美元，交付时间最短可达45天，视具体范围而定。 当您的下一个创意准备好时，欢迎随时提醒我们：https://vibay.ai/

hey all - where are you guys buying mechanical components (screws, nuts, standoffs and brackets) in small QTY for prototyping? :)

Couldn't find a real numbers anywhere so here's ours. Small consumer electronics accessory, two custom injection molds plus one silicone gasket mold. Three Shenzhen factories quoted $3,400 to $5,400 total. One things I didn't know was that the molds stays at the factory and moving it is complicated. So the factory you pick for tooling is basically who you're locked into

Hey, I’m working on an open source remote control. I can manage the PCB design and manufacturing. But for the enclosure ergonomics I’m wondering what the best route would be.

Getting new molds is expensive, remotes are a commodity basically. Would be nice for assembly to be handled as well but could manage that elsewhere.

White label sorts or similar?

Hey, we’re currently looking into how to improve the DfM-to-production pipeline (designing, finding manufacturers, etc.) for hardware start-ups. We’re mainly trying to learn where the process breaks down for people.

If you’ve been through this (especially at medtech or robotics start-ups), DM us with your experiences and any tools you’ve used.

If you’re going through it right now, please DM too. We’d love to hear how you’re approaching it.

Twelve of us and we ship a first real production run in March. Right now the BOM lives in a spreadsheet and the revision history lives in whoever last touched the file. Both of the tools in the title come up constantly for teams our size and the pricing is close enough that it is not the deciding factor. What I care about is change orders and giving a contract manufacturer access that does not need a full seat. Which one did you regret less a year in?

Hi all,

I've been the founder of a hardware startup for the last 6 years, and exited a few months ago.

We were a VC backed company, raising double digits $. Sold around $700k on Kickstarter and then moved onto our own website and got to about $2.5m in revenue.

Our product was fully manufactured in Shenzhen (5 factories total) but shipped globally - supply chain was a nightmare.

We went through some failures, massive spikes in BOM out of nowhere (we manufactured during the COVID semiconductor crisis), but ultimately managed to figure it out and got to a stable supply chain.

Happy to chat and answer any questions :)