nRF52 The nRF52 chip is much more power efficient than the ESP32 chip and easier to update, but is only equipped with Bluetooth.
nRF52 is more power efficient, but only has BT, no wifi. Check which one of the boards mentioned provides wired ports?
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meshtastic.org meshtastic.org
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ESP32 The ESP32 chip is older and consumes more power than the nRF52 chip, but is equipped with both WiFi and Bluetooth. Supported ESP32 devices include:
ESP32 MCU supports both wifi and BT. Higher power consumption though.
In general, as this network is supposed to provide alternative comms when regular networks break down: how reliant on battery / solar powered devices is the network?
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Meshtastic hardware needs specific MCUs.
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play.google.com play.google.com
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Meshtastic app. It provides an interface to connect to a node. None visible in my vicinity (assuming nodes broadcast their presence)
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opencorporates.com opencorporates.com
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530-B HARKLE ROAD, STE 100, Santa Fe, NM, 87505, USA
Meshtastic LLC is registered in Sante Fe, New Mexico, USA. That information is not contained in the meshtastic website.
The head office address given is that of a registration agent though: New Mexico Registered Agent by High Desert Corporate Filings LLC
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meshtastic.org meshtastic.org
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Meshtastic® is a registered trademark of Meshtastic LLC
Meshtastic trademark owned/controlled by Meshtastic LLC. US based I presume (given that examples I saw on the site take USA as default location).
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meshtastic.org meshtastic.org
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When you send a message on your Meshtastic companion app, it is relayed to the radio using Bluetooth, Wi-Fi/Ethernet or serial connection. That message is then broadcasted by the radio. If it hasn't received a confirmation from any other device after a certain timeout, it will retransmit the message up to three times. When a receiving radio captures a packet, it checks to see if it has heard that message before. If it has it ignores the message. If it hasn't heard the message, it will rebroadcast it. For each message a radio rebroadcasts, it marks the "hop limit" down by one. When a radio receives a packet with a hop limit of zero, it will not rebroadcast the message. The radio will store a small amount of packets (around 30) in its memory for when it's not connected to a client app. If it's full, it will replace the oldest packets with newly incoming text messages only.
You use your phone or 'companion app'(?) to send a msg to a radio (over BT, wifi or wire). The radio broadcasts incoming messages, including the one you provide through the app.
Msgs that are not acknowledged by another radion will be send at most 3 times. (will you be able to see it has not propagated?)
A radio that receives msgs already received will not rebroadcast it. Any broadcasted msg has a 'hop limit' and if it hits 0 it will not be rebroadcast. This limits the spread of a message, no? What is the default hop limit? Otoh the hoplimit does not limit the initial number of paths for broadcasting. So it's an attenuation over paths.
Theoretically in a dense network, my msg may reach Y number of other radios that all start out with the same hop limit.
I do not see here yet how you could intentionally set and reach a specific recipient. This description provides attenuated propagation of messages but no direction/addressee?
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meshtastic.org meshtastic.org
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Additionally, Meshtastic radios can be paired with a single phone, allowing friends and family to send messages directly to your specific radio. It's important to note that each device is capable of supporting a connection from only one user at a time.
Any meshtastic radio can connect a single phone for receiving / sending (?) messages on. Apart from repeater function 1 single connection for actual comms input?
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These radios are designed to rebroadcast messages they receive, forming a mesh network.
Any meshtastic device is also a repeater?
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Meshtastic utilizes LoRa, a long-range radio protocol, which is widely accessible in most regions without the need for additional licenses or certifications, unlike ham radio operations.
Meshtastic positions itself as a radio protocol without need for licensing such as in ham radio. Meaning it's fully in parallel to ham emergency networks like the Dutch DARES.
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meshtastic.org meshtastic.org
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There is no NL based local group mentioned at Meshtastic
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meshtastic.org meshtastic.org
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https://web.archive.org/web/20251205114551/https://meshtastic.org/ Meshtastic is a LoRaWan based comms network. It does not interoperate with other things like my Things LoRaWan gateway.
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