HI, i have sonoff RF bridge with last Tasmota running and I use it only for 1 way communication at the moment (have PIR sensors and doors/windows contacts).
Sonoff bridge is sending data in topic tele/yourBridgeTopicName/RESULT with following ourput:
{"RfReceived":{"Sync":12550,"Low":430,"High":1240,"Data":"F2402E","RfKey":"None"}}
where F2402E string is sent by your sensor to RFbridge and RFbridge send it to MQTT broker inside tele payload.
to use these data I created Generic MQTT thing named rf_bridge:
And each device is created as 1 chaqnnel of this rf_bridge Thing:
3 channels marked yellow are representing status of rf_bridge
others are sensors sending data to bridge.
example of PIR sensor which is sending only 1 information - when it gets triggered :
and Item setup:
As PIR is sending only info when its triggered, item associated to this channel is set to ON by PIR but Off is set by rules with timer.
my rule is copy of this design pattern Design Pattern: Motion Sensor Timer
I have a light in server room which is triggered by this PIR, and switch off after 5 minutes (set in previous screenshot) item setup :
and simple rule to switch light ON/OFF based on PIR sensor item :
Example for thing channel with contact where contact is sending 2 information : open/close:
channel:
Item:
no specific rules to update item status - its done directly by binding as you have both states (open/close) available