Xiaomi Smartmi Fresh Air System XFXTDFR02ZM. upgrade version of XFXT01ZM with heater.

[wisesokol]

Before submitting a new request, use the search to see if there is an existing issue for the device.

Device information:

• Name(s) of the device: XFXTDFR02ZM
• Link: https://ultratrade.ru/products/pritochnuiy-vozdyxoochistitel-s-podogrevom-xiaomi-smartmi-fresh-air-system-wall-mounted-heat-version-white-xfxtdfr02zm-/

Use miiocli device --ip <ip address> --token <token>.

• Model: zhimi.airfresh.va4
• Hardware version: MW300
• Firmware version: 1.4.6_1013

Additional context
Hi. I have XFXT01ZM. I use zhimi.airfresh.va2 model/ Work fine.
Today i am upgrade my fan to XFXTDFR02ZM.
With zhimi.airfresh.va2 setup work fine, but:

1. Temperature reading. Instead of 25.5, it shows 2.55. Point offset.
2. No heater control.

[syssi]

Thanks for your excellent report! The temperature issue can be fixed easily.

[syssi]

Could you describe the difference of both devices? Is the temperature property of both devices broken? Have both devices am heater?

[wisesokol]

temperature value is correct, only point shift.
I forgot to write - the temperature is shown as 2.78, instead of 27.8.
Control boards.


Only new, XFXTDFR02ZM, have heater.

[wisesokol]

I can access the ubuntu server on my local network if necessary.

[rezmus]

var isVa4 = _miot.Device.model === 'zhimi.airfresh.va4';
var ptcStateProp = isVa4 ? 'ptc_state' : null;
var propsArr = ["power", "mode", "aqi", "temp_dec", "humidity", "co2", "f1_hour_used", "child_lock", "buzzer", "led_level", ptcStateProp];

var ptcValue = value === true ? "on" : "off";
_miot.Device.getDeviceWifi().callMethod('set_ptc_state', [ptcValue]).then(function (res) {

[syssi]

@wisesokol Could you provide the output/response of:

miiocli device --ip IP --token TOKEN raw_command get_prop "['power','temp_dec','aqi','average_aqi','co2','buzzer','child_lock','humidity','led_level','mode','motor1_speed','use_time','ntcT','app_extra','f1_hour_used','filter_life','f_hour','favorite_level','led','ptc_state']"

I want to know the raw values of "ptc_state" and "temp_dec".

[wisesokol]

osboxes@osboxes:~$ miiocli device --ip 192.168.1.78 --token d1111 raw_command get_prop "['power','temp_dec','aqi','average_aqi','co2','buzzer','child_lock','humidity','led_level','mode','motor1_speed','use_time','ntcT','app_extra','f1_hour_used','filter_life','f_hour','favorite_level','led','ptc_state']"
Running command raw_command
['on', 28.0, 1, 1, 1081, 'off', 'off', 40, 1, 'silent', 400, 510000, 34.1, None, 141, None]

[syssi]

This is the response of model va2 or va4? It looks like va2 because "ptc_state" is None.

[wisesokol]

va4. Now i use only va4 model.
I tried enabling PTC but the answer is the same.

[syssi]

Ah, the device cannot provide more than 15 properties per request. Please provide the response of:

miiocli device --ip IP --token TOKEN raw_command get_prop "['ntcT','app_extra','f1_hour_used','filter_life','f_hour','favorite_level','led','ptc_state']"

[wisesokol]

[33.53, None, 141, None, None, None, None, 'off']
if i turn on ptc
[33.5, None, 141, None, None, None, None, 'on']

[syssi]

Perfect!