Comment by euduhdhbene
15 hours ago
I was recently made aware of WiFi HaLow. Official standard, ranges into the hundreds of meters. Speed suffers at long ranges of course, but still respectable (50-100kbs).
15 hours ago
I was recently made aware of WiFi HaLow. Official standard, ranges into the hundreds of meters. Speed suffers at long ranges of course, but still respectable (50-100kbs).
Difficult within the EU due to ISM limits.
Maybe ok for your garden camera where the authorities just don't care. But no go for any industrial usage.
The ETSI document actually does allow higher duty cycle if the radios take anti-interference measures. Some countries unfortunately have "harmonized" but skipped that part. Theoretically only a dumb transceiver (that can utilize only a single channel) has to limit duty cycle that low in those bands.
We have devices sending telemetry and occasional OTA updates without urgency (if it takes a few hours to get it over it’s not a problem).
If you need consistent MB range traffic for cameras I wouldn’t advise it but for low (5kbs) traffic it can be attractive. A few thousand bits can encode quite a bit of information. Don’t be fooled by the “kbs”.
You can do quite a lot with a few MB. Don't tell every React behemoth on the web that we know this trick.
Phew, I looked it up, just by curiosity. What a nightmare :') the rules, regulations, laws are damn strict Oo
Usually this rules are for experts who have to implement the limits. They should not be exposed to end-users.
The EU's ISM limits are trash.
Really there should be a world wide 900-1000MHz ISM band.
Sounds like it fills the same niche as LoRa. Never heard of it though, thanks.
Dead outside the US unfortunately, worse range than regular wifi due to being strangled by lower channel width and ridicolously low power limits. The two bulky HaLowLink routers are the only off the shelf thing with support for it, it's nonexistent as a wifi standard.
I was so excited when I discovered it a few months back after struggling for years to set up reliable wifi for outdoor robotics, only to realize we can't have nice things. The struggle continues.
Lower channel width improves range, at the cost of bandwidth.
LoRa is not fast enough?
Same channel width and power restrictions. The US' 915MHz band is much much better than the EU 869MHz band
Don’t know about the parent, but I found LoRa adequate for (tiny) payloads (sensor data and such) but OTA updates are a PITA without some alternative channel. Speeds are measured in bytes / sec.
No one is using it in real life. It's a super weak hobbyist protocol with a lot of hype and marketing.
Seriously. Only rich nerds in SAN FRANCISCO are using it.