Show HN: Open-Source 3D Location-Based Wireless Mesh Network

Re:Show HN: Open-Source 3D Location-Based Wireless Mesh Network by 3np on Sunday March 20, 2022 @11:15PM (#30749808)

I am only superficially familiar with the state of these wireless protocols. A lot of both enterprise and OSS-community attention for wireless mesh and IoT seems to be focused around (proprietary, patented) LoRa/LoRaWAN.

Did you consider them, and what made you decide on UWB? What are pros/cons in your opinion for a use-case like Hyperspace?

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Re:Show HN: Open-Source 3D Location-Based Wireless Mesh Network by c_o_n_v_e_x on Monday March 21, 2022 @12:21AM (#30750224)

Traditional LoRaWAN is based on a star topology rather than a mesh (I say traditional as there are P2P and mesh flavors of LoRa now available). OP mentioned wanting to retain network functionality in the event that the network gateway goes down which would rule out LoRa / star network topologies.

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Re:Show HN: Open-Source 3D Location-Based Wireless Mesh Network by 3np on Monday March 21, 2022 @12:29AM (#30750278)

Is this something inherent in the protocol making it less suitable for mesh applications or simply convention and lack of implementation? Do the mesh flavors require new hardware?

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Re:Show HN: Open-Source 3D Location-Based Wireless Mesh Network by namibj on Monday March 21, 2022 @01:04AM (#30750498)

LoRa gets part of its efficiency from fairly brutal sleeping, to the point where the radio would only get turned on to transmit when sensor data meaningfully changed or some (weeks) timeout comes up to say "yes, I'm still alive".

Also, it's range being longer than normal mobile phone cellular radio allows getting away with sparingly-positioned gateways.

Also it's not truly star, but rather gateways vs. nodes (at least with the popular LoRaWAN stuff). All gateways that pick up a node's transmission will report it to central servers.

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