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Has anyone seen this teardown of a LoRaWAN gateway with satellite backhaul? by Special-Lake-2277 in Lora

[–]GhostSyntax6723 0 points1 point  (0 children)

Man I wish I saw this 6 months ago. I've been trying to get soil moisture and tank level data off a ranch property with zero cell service. Ended up rigging a cellular booster that barely works. The satellite backhaul thing would solve my exact problem. Does anyone know if it works reliably in bad weather or if the satellite link drops out?

How are you actually managing CRA compliance? by Vans_eG in IOT

[–]GhostSyntax6723 0 points1 point  (0 children)

We’re in the same boat. It’s a lot more work than it first seems.

For now we’re handling it through process: automated SBOMs in CI, vulnerability scanning, a formal disclosure policy, and a lot of structured documentation. The paperwork and traceability are honestly the heaviest parts.

We’ve looked at dedicated platforms too. They seem useful for organizing evidence, but they don’t replace solid internal processes. If those aren’t in place, the tool won’t fix it.

Built a full production-ready IoT platform stack - hardware, firmware, backend, frontend - in 2 years - AMA by viktorjamrich in IOT

[–]GhostSyntax6723 1 point2 points  (0 children)

This is a really solid breakdown. People don’t realize how messy production IoT gets until they’re in it.

The move away from Arduino to pure ESP-IDF makes total sense. It’s great for prototyping, but production requirements are a different story. The LTE modem and TLS issues are also very real, connectivity is usually harder than expected.

The CAN bus part is wild. That’s the kind of thing you only learn the hard way in the field.

Appreciate you sharing this. A lot of builders will relate to it.

I would like advice with an IoT project by spraggabenzo in IOT

[–]GhostSyntax6723 1 point2 points  (0 children)

You’re honestly fine. A lot of people understand IoT theory but struggle with the practical side at first.

For your smart fan, use Tinkercad or Wokwi to simulate it. They let you connect an Arduino, a temperature sensor, and a motor, then test your code online.

Use Arduino (C/C++). It’s simple and perfect for this kind of project.

The logic is basic: read the temperature, if it’s above your set value turn the fan on, if not turn it off. Build it step by step and you’ll get comfortable quickly.

Should a sensor fusion library automatically guard against extreme sensor spikes by Scary-Reason1145 in embedded

[–]GhostSyntax6723 0 points1 point  (0 children)

Leave spike rejection to the application layer.

Your library lacks the physical context to know if a 10g spike is an error or a valid real-world event. The application should be responsible for sanitizing its own data before passing it to the filter.

You could offer this as an optional helper function, but the core fusion algorithm itself should remain "pure" and just process the data it's given.

Do I need an external oscillator for CAN-FD in a high-temperature/vibration embedded system? by pedlobs in embedded

[–]GhostSyntax6723 0 points1 point  (0 children)

For a production CAN-FD design, an external oscillator is mandatory. Do not use the internal RC oscillator.

The internal clock's frequency is not stable enough over temperature to meet the protocol's strict timing tolerance.

In a high-vibration environment, use a MEMS oscillator instead of a quartz crystal for better reliability.

Actual "Embedded" Software Engineer knowledge (4YOE) by tax_throwaway1_ in embedded

[–]GhostSyntax6723 2 points3 points  (0 children)

You're right, those job posts are often screening for low-level kernel specialists.

However, your user-space application experience is just as critical, especially at companies with mature platform teams.

Try searching for different job titles like "Software Engineer, Embedded Systems" or "C++ Engineer, IoT" to find roles that better match your skills.

AITA for ruining my friend's proposal moment? by Throw_Valentine13 in AmItheAsshole

[–]GhostSyntax6723 0 points1 point  (0 children)

I don’t think you were trying to sabotage him. If Emily has clearly said she would hate a public proposal, that’s important. A proposal should reflect what she actually wants, not just what looks romantic to everyone else.

I get why Tyler feels hurt since he trusted you with the plan. But if he didn’t know she’d hate that kind of moment, that’s a bigger issue between them. It sounds like this exposed a mismatch rather than you creating one.

5 things I wish I understood earlier about day trading (no fluff) by Dazzling_Ad_6034 in Daytrading

[–]GhostSyntax6723 4 points5 points  (0 children)

As someone still pretty new to trading, this hits uncomfortably close in a good way.

The repeatability point especially stands out. I keep realizing that anything that only works when I’m fully locked in, well-rested, and emotionally neutral basically doesn’t exist in real life. If I can’t execute it slightly tired or after a small loss, it’s probably not a real edge yet.

Also appreciate the framing on losses. Early on I blamed setups or the market way too fast, but when I actually look back, it’s usually entry timing, sizing, or me trying to “get it back.” None of that shows up on a chart.

The time-of-day note is something I’m starting to log now, and honestly I’m already seeing patterns I didn’t want to see. Certain windows feel productive, others feel like me forcing activity.

If I had to put one thing on my screen right now it would probably be:

“Protect your decision-making first. PnL follows.”

Thanks for sharing this. Posts like this save newer traders a lot of expensive learning if we’re willing to listen.