Add a JSON-RPC query for LoRa region params.

[ke6jjj]

Add a JSON-RPC endpoint for querying LoRa region parameters to support manufacturer integration with PoC v11's dynamic (on-chain) region parameterization.

[madninja]

that looks very nice.. well done erlang @ke6jjj

[ke6jjj]

When successful, this query returns a result which contains a JSON array of Channel Objects.

Channel Object

Attribute	JSON type	Description
channel_frequency_hz	number	Channel center frequency, in hertz.
bandwidth_hz	number	Channel bandwidth, in hertz.
max_eirp_cbm	number	Maximum permissible Effective Isotropic Radiated Power (EIRP), in centibels milliwatt (cBm). Divide by 10 to convert to decibels milliwatt (dBm).
spreading	array	List of spreading factors used on the channel and their maximum packet sizes. (See SpreadingFactor object).

SpreadingFactor object

Attribute	JSON type	Description
factor	string	Enumeration (one of) SF12, SF11, SF10, SF9, SF8, SF7; representing a LoRa spreading factor.
max_packet_size	number	Maximum permissible transmit packet size at this spreading factor, in bytes.