ITHO Daalderop FAN RF remote with C1101 and ESP8266



I want to share some experience and code that i used to control a ITHO Daalderop CVE ECO-Fan.
This fan uses a RF protocol that is reverse engineerd by some clever people.
For reference i point to a dutch topic about it:

I developed a plugin for ESPEASY based on the library from this above forum by supersjimmie.
Sourcecode Plugin and Binary with plugin available at: GITHUB


  - platform: mqtt
    name: Tijd
    state_topic: "/ESP_Easy/Fan/Timer"
    value_template: "{{value}}"
    unit_of_measurement: 's'
  - platform: mqtt
    name : Snelheid
    state_topic: "/ESP_Easy/Fan/State"
    value_template: >
      {% if value|float==0 %}Standby{% endif %}
      {% if value|float==1 %}Laag{% endif %}
      {% if value|float==2 %}Medium{% endif %}
      {% if value|float==3 %}Hoog{% endif %}
      {% if value|float==4 %}Full{% endif %}
      {% if value|float>=11 %}Hoog(T){% endif %}
  - platform: mqtt
    command_topic: "/ESP_Easy/Fan/cmd"
    state_topic : "/ESP_Easy/Fan/State"
    speed_command_topic: "/ESP_Easy/Fan/cmd"
    speed_state_topic: "/ESP_Easy/Fan/State"
    state_value_template: "{% if value|float==0 %}State 0{% endif %}{% if value|float >0 %}State 1{% endif %}"
    speed_value_template: "{% if value|float==0 %}State 0{% endif %}{% if value|float >0 and value|float <=4 %}State {{value}}{% endif %}{% if value|float >=11 %}State 3{% endif %}"
    payload_on: "State 1"
    payload_off: "State 0"
    payload_low_speed: "State 1"
    payload_medium_speed: "State 2"
    payload_high_speed: "State 3"
    optimistic: "true"
    name: Afzuiging badkamer
      - low
      - medium
      - high    

      - fan.afzuiging_badkamer
      - sensor.Snelheid
      - sensor.Tijd


      icon: mdi:timer
      icon: mdi:transfer   

Have Fun!


I really want to make this but i’am missing a step by step guide and witch stuff i have te buy.


You should have a look at de Dutch forum i mentioned incl. link.
If you are not a native dutch speaker use google/microsoft translater

Al you need is a Wemos D1 mini or any other ESP8266 boards with sufficient pins and a CC1101 868 MHz transmitte/receiver.
They are widely available on ebay and aliexpress.

Ventilation based on Co2 levels

@jodur , i have made the hardware and software with your github and this post. It is working, but my state is always ‘unkown’ and also the Time is ‘unkown’. How can i solve this?
I have soldered PIN6 to D1 on the Wemos and in ESPEasy under I2C Interface i have set GPIO ⇿ SDA and
GPIO ⇾ SCL to NONE. But still no ID of the remote.


Even when you receive nothing the state should be “low” and the time should be zero. It looks like you subscribed to the wrong MQTT topic, Make sure you did set the time value different to zero. This ensure that even when nog signals changes the state,timer and lastid is published cyclic with the set time.