Serial USB works but want to display as Number

Configuration
1

Hi,
I am trying to send serial data to HA.
My setup is the HASS operating system on a Raspberry Pi.
below shows a log entry verifying the serial data is indeed coming in via a USB port.
I am using a template to strip off the incoming data - config.YAML below
As shown in the log, a correct temperature of 24.25 is read from the data string.
My problem is that I want to display this a a Temperature on a graph, but currently it is a string.
Can someone tell me how to alter the code to do this,
thanks

Logger:

170_Temperature2 changed to 24.25 triggered by state of serial_sensor changed to $:170:85:0:24.25:*

Config.YAML:

sensor:
  - platform: serial
    name: serial_sensor
    serial_port: /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A105NIQ6-if00-port0
    baudrate: 115200
    
template:
  - trigger:
      - platform: state
        entity_id: sensor.serial_sensor
    sensor:
      - name: 170_Temperature2
        state: >-
          {% set d = trigger.to_state.state.split(':') %}
          {{ d[4] if d | count > 2 and d[1] == '170' else this.state }}
      - name: 170_Signal
        state: >-
          {% set d = trigger.to_state.state.split(':') %}
          {{ d[2] if d | count > 2 and d[1] == '170' else this.state }}
2

Split returns strings so that is expected.
You need to add a float filter.

 {{ d[4] | float if .....
3

Thanks for your quick reply Hellis81.
How do I add units of deg.C?
thanks

4

Template - Home Assistant

5

Thanks Hellis81. Works!
I need to do a bit of reading,
cheers from Australia

6

I should add, the working code is this:

sensor:
      - name: 170_Temperature
        state: >-
          {% set d = trigger.to_state.state.split(':') %}
          {{ d[4] | float if d | count > 2 and d[1] == '170' else this.state }}
        unit_of_measurement: "°C"
7

That should work