Rough initial radio emulator (#1)

* Super rough initial subscription to channels and sending node info

* Very ugly hacky FromRadio subscription

* Add more TODOs :weary:

* Add log message before we try to broadcast NodeInfo

* Add basic positioning broadcasting

* demo sending message from consumer

* Use const for BroadcastNodeID

* Config validation and defaults

* Tidy up examples/TODOs

* Tidy up example

* Handle position and devicetelemetry updates

* Fix dodgy merge

* Allow configuring interval for nodeinfo/position seperately

* Make broadcasted position configurable

* Add MQTTProtoTopic constant rather than modifying topic root

* Allow altitude of broadcasted position to be configured

* static check ignore

1 files changed, 4 insertions, 0 deletions

diff --git a/util.go b/util.go
index 0de4297..ef2c61f 100644
--- a/util.go
+++ b/util.go
@@ -4,6 +4,7 @@ import (
 	pbuf "buf.build/gen/go/meshtastic/protobufs/protocolbuffers/go/meshtastic"
 	"encoding/binary"
 	"fmt"
+	"math"
 )
 
 type NodeID uint32
@@ -23,6 +24,9 @@ func (n NodeID) Bytes() []byte {
 	return bytes
 }
 
+// BroadcastNodeID is the special NodeID used when broadcasting a packet to a channel.
+const BroadcastNodeID NodeID = math.MaxUint32
+
 type Node struct {
 	LongName      string
 	ShortName     string