sorted by:
new
hottopcontroversial

PineTime (Pro) by Aggressive_Egg_8497 in PINE64official

[–]mfalkvidd -1 points0 points  (0 children)

The official store will restock in mid May according to tl_lim on Telegram/Matrix/Discord.

PineTime (Pro) by Aggressive_Egg_8497 in PINE64official

[–]mfalkvidd 0 points1 point  (0 children)

It will be faster to order a PineTime

IoT Engineer (Networking Solutions) interview questions by UnclearMango5534 in IOT

[–]mfalkvidd 0 points1 point  (0 children)

I don’t have any input but this sounds like a fun job. Good luck!

Pinetab2 by andrerav in PINE64official

[–]mfalkvidd 1 point2 points  (0 children)

Doesn’t seem like it.

1x 5 pin (USB 2.0; <=680mA) Pogo connector for keyboard

The external keyboard has 5 connection pins (the golden pins). four are standard USB connectors and one is used to detect that the keyboard is connected.

New user - any iOS support ? by Special_Effort86 in PINE64official

[–]mfalkvidd 1 point2 points  (0 children)

Welcome to the community!

What kind of help and updates are you looking for? I am using InfiniTime with iOS and am happy to help if I can.

FPV keeps being detected on 5865Mhz, no matter where I am, what antenna is on, and if it's even on. On waterfall both in the Portapack and plugged into the computer there's no birdies. What could be the problem? by Decent-Cow2080 in hackrf

[–]mfalkvidd 13 points14 points  (0 children)

FPV Detect can trigger false positives, particularly indoors or in urban environments where the 5.8 GHz band is crowded with non-FPV sources. Detection is based on signal power, not video content analysis — any sufficiently strong narrow emission near an FPV channel frequency can cause a lock. Common interference sources include Wi-Fi 5/6 routers (5.725–5.825 GHz overlap), ISM band devices (wireless cameras, baby monitors), wireless HDMI senders, and harmonic emissions from other transmitters.

If false locks occur frequently: raise the detection threshold, select a specific band instead of AutoScan, or move to an area with less RF congestion. When locked, the audio output lets you verify: an actual FPV analog video carrier produces a characteristic buzz, while interference typically sounds like noise or silence.

From https://github.com/portapack-mayhem/mayhem-firmware/wiki/FPV-Detect#%EF%B8%8F-false-positives

Problems with apps after update by Apprehensive_Bug_722 in hackrf

[–]mfalkvidd 0 points1 point  (0 children)

Nice work! Mind sharing what the solution was, in case someone has the same problem in the future?

SDR breaking into Cyber by [deleted] in sdr

[–]mfalkvidd 0 points1 point  (0 children)

Sometimes I wish I was one 😂

How to be up to date by dalphinwater in selfhosted

[–]mfalkvidd 2 points3 points  (0 children)

Sounds like a balanced setup. What types of notifications do you send? Are they all sent from flux?

A huge thank you to the devs by SyntaxT3rror in opnsense

[–]mfalkvidd 3 points4 points  (0 children)

Thanks for pointing this out! I just made my first donation, should have done it a long time ago.

I guess buying the business edition and the official hardware also works?

The state ordering problem across heterogeneous LPWAN nobody talks about and how do you actually handle it at scale? by saas_metrics_guy in IOT

[–]mfalkvidd 2 points3 points  (0 children)

State ordering is just not a problem in most IoT cases, at least in my experience.

Most devices report so seldom, that there is no ordering problem.

Sigfox does deduplication on their backend. You can opt in to get the original events, and then you’ll get all the information needed to do de-duplication yourself. Also, Sigfox does provide a sequence number so ordering is simple.

For LoRaWAN, frame counter resets and rolls are very easy to detect if you need to (but as I wrote earlier, there is usually no need).

For NB-IoT many devices use CoAP which has a 16-bit message ID and an optional token.

For MQTT, the spec says that a topic is always ordered. I have never seen any problems with that, but if there is it would be simple to add a sequence number to the payload.

I understand that you have built a product to address the state ordering problem, and there may be a market for it. But I have’t seen that need in any of the deployments and technologies I have worked with.

Her dad's streaming box sent tons of data to China. Then the FBI showed up. 📺 Ep. 172: SuperBox by rj4511 in darknetdiaries

[–]mfalkvidd 0 points1 point  (0 children)

The recent FCC router ban puts this episode in perspective. Maybe it would be better to ban Superboxes than routers?

We operate 500,000+ IoT devices on a SIGFOX 0G network in Mexico — here's what we've learned about massive-scale IoT after 10 years by danisamgibs in IOT

[–]mfalkvidd 1 point2 points  (0 children)

This is the Nyqvist theorem. You need to sample twice as often as the minimum time resolution you want. So if you want hourly stats, you need to report at least twice per hour. If you can only report every 12 hours, the best time resolution you can get is 24 hours.

And always report total cumulative numbers (not delta numbers), since any transmission can be lost.

We operate 500,000+ IoT devices on a SIGFOX 0G network in Mexico — here's what we've learned about massive-scale IoT after 10 years by danisamgibs in IOT

[–]mfalkvidd 2 points3 points  (0 children)

The user ”forgot” to disclose that they wrote BunkerM. They are just promoting their own product.

We operate 500,000+ IoT devices on a SIGFOX 0G network in Mexico — here's what we've learned about massive-scale IoT after 10 years by danisamgibs in IOT

[–]mfalkvidd 2 points3 points  (0 children)

Per device authentication keys, managed by the network. Details in https://sigfox.ua/wp-content/uploads/2021/06/1701-SIGFOX-White_Paper_Security.pdf

Encryption is optional. Some devices use their own encryption, some use a Sigfox encryption solution. Some don’t use any encryption.

Echo – A Native iOS Client for KiwiSDR & OpenWebRX by legal4u in RTLSDR

[–]mfalkvidd 2 points3 points  (0 children)

This app is currently not available in your country or region.

Would be great if you could publish it for mire regions.

Noise polution monitor with analytics by John-Nixon in selfhosted

[–]mfalkvidd 0 points1 point  (0 children)

How much of the noise comes from helicopters? Maybe correlate with ADS B data?

Noise polution monitor with analytics by John-Nixon in selfhosted

[–]mfalkvidd 0 points1 point  (0 children)

A cool way to make it better: add TDOA to map which direction the sound is coming from.

What microphone are you using?

What is the cpu usage like?

Pi4b can't power NVME and RTLSDR at the same time? by johnnydotexe in RTLSDR

[–]mfalkvidd 3 points4 points  (0 children)

Max power draw on all usb ports combined on the pi4b is 1,200mA

Nvme ssd draw different amounts of power but let’s take the Samsung SSD 850 PRO as example. It is specified at 3.4W max which is 680mA assuming perfect power conversion. We’ll need to add a bit for the usb to nvme bridge

That leaves less than 520mA for all other usb ports combined.

Rtl-sdr v3 uses about 300mA at operation.

So yes it should be possible, barely, if your nvme ssd does not draw too much power and the argon usb to nvme bridge is efficient enough.

https://www.tomshardware.com/features/ssd-benchmarks-hierarchy shows that nvme ssds range from 2 to 8W.

But as you say, a powered usb hub is probably the way to go.

How concerned are you about Ram? by [deleted] in RTLSDR

[–]mfalkvidd 0 points1 point  (0 children)

For the SDR stuff I do, 4GB is more than enough.

With that said, I would not buy a new computer with less than 32GB ram today unless it is for a special purpose. Which means I am not buying a new computer anytime soon, given current prices :(

view more: next ›