yosheli123

3 ms·

1.
by yosheli123 4y ago
That tops out at around 300meters. Ours goes beyond 1km. Still there's is awesome for camera feeds; I love the Blue Robotics hardware, SPEBlox Long is just a different application (more industrial automation focussed)
2.
by yosheli123 4y ago
Awesome to have your input on this. I'd love to talk to you in person to learn more. Reach out at josh@botblox.io
3.
by yosheli123 4y ago
Yeah, I think there's other considerations like power, overall size, input voltage supply, ease of maintenance etc. If it's purely down to cost then I don't these modules would compete
4.
by yosheli123 4y ago
That's brilliant!
5.
by yosheli123 4y ago
Smaller, lower power, more reliable + a somewhat open spec being developed around it (unlike things like homeplug which are kinda murky). Generally it's the same people who developed the ethernet spec that are developing single pair et
6.
by yosheli123 4y ago
You'd use some standard tether cable, Blue Robotics sell good stuff for that. https://bluerobotics.com/store/cables-connectors/cables/fath... Then just straight onto the screw terminals.
7.
by yosheli123 4y ago
tbh I don't think I'm really ever going to compete with the mass volume stuff on DSL. I think this is more for applications where space is the key motivator, rather than cost.
8.
by yosheli123 4y ago
Yeah I'm really targeting directly embedded applications that will want single pair ethernet. Robot tethers and things like that. $200 a pair is definitely possible. $100 a pair is probably possible in a year or so, I just can't p
9.
by yosheli123 4y ago
Yeah fair. I'm aiming at new space constrained applications with this.
10.
by yosheli123 4y ago
Basically just any CAT5e like twisted pair has worked for me up to 1km. 26AWG unshielded twisted pair basically, 100Ohm diff impedance. Cost of cabling is pennies IMO. Labor cost, who knows. Optical can be quite expensive though these board
11.
by yosheli123 4y ago
Yeah approx $400 for a pair. Mainly chip shortage messiness, I think I can get the cost down to less than $200 a pair in April 2023. Regarding VSDL, never used it myself; I guess it would come down to space/power considerations. I have
12.
by yosheli123 4y ago
Yep full duplex
13.
by yosheli123 4y ago
So I built a tiny single pair Ethernet bridge (10BASE-T1L) that can transmit 10mbps over a kilometer on a single pair of twisted copper wires. Would love to get some feedback for the next iteration
14.
10mbps over 1km on a single pair of wires(botblox.io)
296 points by yosheli123 4y ago|218 comments
15.
by yosheli123 5y ago
One point I completely forgot was Gigabit Home Network, (G.hn) as a alternative to 1000BASE-T1. It essentially does the same thing and can achieve long ranges. Ultimately this technology is designed to pump 1000Mbps down nasty home wiring,
16.
by yosheli123 5y ago
BTW, since I have the hardware on hand, let me know if y'all want me to conduct specific tests. I have a beauty of an oscilloscope that can get very good sampling resolution on this.
17.
by yosheli123 5y ago
I certainly believe SPE is the future but not as an immediate replacement to ethernet for the following reasons: - BASE-T1 PHYs and connectors are going to be more expensive than cheapo BASE-T PHYs and RJ-45s for a while. - The entire indus