Templates and IF conditions with entities in the configuration.yaml - Help!

Hi there.

I am stuck. I’ve tried to figure this out for a good few hours now, but I just can’t figure out the syntax.

I have 4 byte blocks that come in on the serial port. Byte 2 is the address.
Using IF statements, I want to be able to match the address to the entity.

Heres my code. Everything works other than the RF1 entity which I would like to respond when the address coming in = 1

sensor:
  - platform: serial
    scan_interval: 0
    serial_port: /dev/ttyUSB0
    baudrate: 9600
    bytesize: 8
    parity: N
    stopbits: 1
  - platform: template
    sensors:
      RFinfo:
        friendly_name: RF info
        unit_of_measurement: ""
        value_template: "{{ states('sensor.serial_sensor')  [1:2] | ord }}"
         
      RF1:
        friendly_name: RF1 device
        unit_of_measurement: ""
        value_template: {{ IF states('sensor.serial_sensor')  [1:2] | ord = 1 }}
          Triggered 

Hope someone can help as this has me baffled.
Thanks.

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