Live data from Hacker News

Swarm – Low cost, global satellite connectivity for IoT

swarm.space

111–120 of 165 posts

Re: Swarm – Low cost, global satellite connectivity for IoT

#111

Earlier quoted context omitted.

What might somebody (or some company) use this for? 192 bytes * 750 packets = 144000 bytes per month at what speed/latency?

It's ideal for asset tracking - you can fit a GPS fix, timestamp, and accuracy estimate (based on # of satellites visible) into 12 bytes, which is enough to ping once per minute and still only use half your allocated bandwidth. If your asset tags call in every 5 minutes or once per hour lots of options open up. 2 way communications aren't much more demanding because most of what you need can be done with lookup table…

> which is enough to ping once per minute and still only use half your allocated bandwidth

Err, no - at 750 packets/month, you’d burn through your allocation in 12.5 hours at that rate.

Re: Swarm – Low cost, global satellite connectivity for IoT

#112
post #12

Minimum order of 25, so roughly $3725 for one year unless you get the "eval kit" @ $449. USD $5/MO PER DEVICE Provides 750 data packets per device per month (up to 192 Bytes per packet), including up to 60 downlink (2-way) data packets

What might somebody (or some company) use this for? 192 bytes * 750 packets = 144000 bytes per month at what speed/latency?

I met a person who runs a competitor with similar restrictions.

Their suggested architecture was basically to use this for notifications for very remote sensors: "battery below 20%. Come help" etc

The other way is for things like Garmin InReach: "Send message 1" (which is "I'm ok and don't need help") etc.

Re: Swarm – Low cost, global satellite connectivity for IoT

#113

Earlier quoted context omitted.

You're already carrying around a device that monitors your location, what you are saying (and audio in the surrounding area), to some extent how you are moving (gyroscope), your data ingress and egress patterns and where you share virtually all your public thoughts (and most private thoughts). Some people even connect their watches, which monitor (or will soon monitor) everything from their heart rate, sleep schedule…

While that's true, I have a little bit of faith in Apple and Google. But how about the $18 humidifier I bought on Amazon?

What data about you could they possibly make money off of, in less than a megabyte, that is worth more than the cost of putting the modules in?

Re: Swarm – Low cost, global satellite connectivity for IoT

#115
post #28
post #12

Minimum order of 25, so roughly $3725 for one year unless you get the "eval kit" @ $449. USD $5/MO PER DEVICE Provides 750 data packets per device per month (up to 192 Bytes per packet), including up to 60 downlink (2-way) data packets

Curious how it compares to Iridium, I've seen those with Sparkfun

It's significantly cheaper but also in a frequency range that likely requires a bigger antenna.

Re: Swarm – Low cost, global satellite connectivity for IoT

#116
post #6

SpaceX acquired swarm in 2021: https://www.google.com/amp/s/www.cnbc.com/amp/2021/08/09/spa...

I guess that explains why the marketing site looked so familiar.

Hasn't Helium shown that there is low demand for this type of IoT connectivity?

Re: Swarm – Low cost, global satellite connectivity for IoT

#117
post #116

Earlier quoted context omitted.

I guess that explains why the marketing site looked so familiar.

Hasn't Helium shown that there is low demand for this type of IoT connectivity?

Helium isn’t truly world wide. Swarm is more like a direct competitor to Iridium Short Burst Data (SBD) service. Works anywhere on the globe. Helium relies on people nearby running a node so it only works where people live and have an internet connection.

Re: Swarm – Low cost, global satellite connectivity for IoT

#118
post #28
post #12

Minimum order of 25, so roughly $3725 for one year unless you get the "eval kit" @ $449. USD $5/MO PER DEVICE Provides 750 data packets per device per month (up to 192 Bytes per packet), including up to 60 downlink (2-way) data packets

Curious how it compares to Iridium, I've seen those with Sparkfun

Order of magnitude less expensive.

Re: Swarm – Low cost, global satellite connectivity for IoT

#119

Earlier quoted context omitted.

It's ideal for asset tracking - you can fit a GPS fix, timestamp, and accuracy estimate (based on # of satellites visible) into 12 bytes, which is enough to ping once per minute and still only use half your allocated bandwidth. If your asset tags call in every 5 minutes or once per hour lots of options open up. 2 way communications aren't much more demanding because most of what you need can be done with lookup table…

It's not only bandwidth limited, it's message count as well. The $60/yr plan allows for 750 _messages_ per month. Up to 3000 messages per month if you stack 4 plans together. So on the base plan, you're limited to ~1 message per hour if you spread it out across the month.

> ~1 message per hour

How so? 6 messages per day is one message per 4 hours.

Re: Swarm – Low cost, global satellite connectivity for IoT

#120

What does the data collection end of this look like? In a home IOT setup, for example, you'd typically have a single machine (Border Router in a Thread setup) collecting all the data from each node. I understand the "field device" -> "satellite" uplink step. But, what's the next step? Another device just for downlink data would eat through the data cap in no time.

Downlink is internal to the sat provider, and will just send messages on to you over the ordinary internet.
Post reply on HN