HOWTO send/simulate a sensor 433Mhz

Configuration
1

Ok. I´ll try to make sense of my question.

I have a RFXCOM 433Mhz reciever/transmitter and am using node red and a 433Mhz “keyfob” for my alarm system. I have identified the keyfob a a sensor and when i press the different buttons the sensor shows “ARMED”, “ARMED AWAY” and “DISARMED”

How i go about to SEND these codes from home assistant?
I.e. i want to ARM etc my alarm system from home assistant without using the keyfob?

Any explanations?

2

I’ve done something similar to send a signal to alarm bells in HA:
I’ve read the signal from a remote, deiscover came up with a couple of binary_sensors, I’ve simply copied their code and created switches with them and deleted the binary_sensors
I end up with this:

    09130006131408015e70:
      # name: Kerui Panic
      name: Kerui Alarm
      fire_event: true
    09130008131402016070:
      # name: Kerui Arm Home
      name: Kerui Disarm
      fire_event: true
3

Thank you for your input. I have however a problem.
I removed the sensor and added “true” on binary sensor
binary_sensor:
platform: rfxtrx
automatic_add: true
But the buttonpress does not generate a “autoadd”
2019-03-25 21:34:53 DEBUG (Thread-2) [homeassistant.components.rfxtrx] Receive RFXCOM event from (Device_id: a7a6c0_32 Class: RFXtrxDevice Sub: 0, Pkt_id: 08200000a7a6c00d79)

I the changed binary_sensor to false and added true on the switch
switch:
platform: rfxtrx
automatic_add: true
And again nothing is added automatically.
2019-03-25 21:31:23 DEBUG (Thread-2) [homeassistant.components.rfxtrx] Receive RFXCOM event from (Device_id: a7a6c0_32 Class: RFXtrxDevice Sub: 0, Pkt_id: 08200006a7a6c00d79)

How would i go about to add the button as a switch if it:s not autoadded?

4

don’t use discovery / auto add. Now that you have the device’s ID (something like 09130006131408015e70), use this to manually create a switch as per my example above

5

Again. Thank you for your patience!
I tried as you wrote and added
"08200006a7a6c00d79":
name: Alarm Disarm
fire_event: true

Under the

switch:
platform: rfxtrx
automatic_add: false

Section. I can now se a switch called:
[switch.alarm_disarm] friendly_name: Alarm Disarm
assumed_state: true

However, when i click on the on/off on the switch im presented with the errormessage:

Failed to call service switch/turn_on. ‘RFXtrxDevice’ object has no attribute ‘send_on’

And no signal is sent to the alarm-system.

Any further input?

6

Can you copy your full switch config and use the blue bar to format your code correctly?

7

I managed to figure this out! Mainly due to this post: https://community.home-assistant.io/t/kerui-d026-door-window-sensor-rfxtrxe/67469/16

I disabled the X10 protocol via rfxmgnr and now the button presses are identified as lightning4 and the switches are added!

8

ah yes you need to ensure you have the right protocols selected and no interferences with other.
Check the RFXcom manual, esp. Point 2.4