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Merge pull request #579 from charminULTRA/master

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Foster Irwin 2023-01-27 00:19:29 -07:00 committed by GitHub
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26
docs/configuration/device-config/lora.mdx
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@ -11,6 +11,10 @@ import LoRaRegions from "../../blocks/_lora-regions.mdx";
The LoRa config options are: Region, Modem Preset, Max Hops, Transmit Power, Bandwidth, Spread Factor, Coding Rate, Frequency Offset, Transmit Enabled, Channel Number and Ignore Incoming Array. LoRa config uses an admin message sending a `Config.LoRa` protobuf.
:::note
In order to communicate fully, devices within a mesh must have identical settings for Region and Modem Preset, or identical custom Modem settings.
:::
## LoRa Config Values
:::note
@ -25,7 +29,27 @@ Sets the region for your node. Default is `unset`. As long as this is not set, t
### Modem Preset
Use a sensible default for the modem. Default is `unset` which equates to `LONG_FAST`. Also 'Use Presets' has to be defined, which is the default. If 'Use Presets' is not defined, the modem will be configured manually with Bandwidth, Spread Factor, and Coding Rate.
Default is `unset` which equates to `LONG_FAST`. Presets are pre-defined modem settings (Bandwidth, Spread Factor, and Coding Rate) which influence both message speed and range. The default will provide a strong mixture of speed and range, for most users.
The presets are designed to provide further options for optimizing either speed (and reduced network congestion) or range, which can be useful for two real world scenarios:
1. A high number of devices exist in the mesh, or messages are sent very frequently. Faster speeds (and therefore lower radio time per device) can help with mesh network congestion.
2. Maximum range is desired, for long range scenarios where a several second delay in message receipt is acceptable (for instance, attempting to send messages from a town to a distant mountain top).
The Presets available as as follows, and follow a linear pattern of Fastest <--> Slowest, and Shortest <--> Longest range:
1. `SHORT_FAST` (Fastest, highest bandwidth, lowest airtime, shortest range)
2. `SHORT_SLOW`
3. `MEDIUM_FAST`
4. `MEDIUM_SLOW`
5. `LONG_FAST` (Default)
6. `LONG_SLOW`
7. `VERY_LONG_SLOW` (Slowest, lowest bandwidth, highest airtime, longest range)
### Max Hops