Send string instead of integer value

ESPHome
1

Hello everyone,

I use an esp12s in a radar motion detector ZY-M201-24GWIFI which is connected to a tuya MCU. On datapoint 1 the MCU supplies three integer values ​​(0 1 or 2):

0 is for no movement
1 is for movement
2 presence

I now want the ESP to deliver the string instead of the three integer values.

I tried it like this:

  - platform: "tuya"
    name: "${friendly_name} Movement"
    icon: mdi:eye
    sensor_datapoint: 1
    filters:
      - lambda: !lambda |-
          if (x == 0) {return "nobody";}

But i get an error during compile:

<unicode string>: In lambda function:
<unicode string>:97:27: error: could not convert '"nobody"' from 'const char [7]' to 'esphome::optional<float>'
*** [.pioenvs/zy-m201-esp01/src/main.cpp.o] Error 1

No idea whats happend there, because i new to lambda. How can i archive this? Maybe there is a better way to do this.

2

Not an expert either but I believe the issue is that you try to change the value of a platform based entity.
The platform “tuya” probably have hardcoded the value to be int, and can’t accept it to be string.

What you can do is to create a template sensor in ESP-Home or in HA and change it.