Data parsing error: Invalid JSON: SyntaxError: No number after minus sign in JSON at position 75 (line 1 column 76)

[mrmaximas]

Hello @merdok !
I have been using the plugin successfully for several years, thank you 🙏🏻
Recently, I discovered a problem with the zhimi.airfresh.ua1
https://home.miot-spec.com/spec/zhimi.airfresh.ua1
When the inlet temperature drops below zero, a data parsing error occurs.
When it is higher, there is no problem.

Plugin log:

[Fresh Air] Poll failed 4 times in a row! Stopping polling and trying to reconnect! Reason: Error: Call to device timed out

I stopped the plugin, tried to figure it out via command line, and here's what I found out.
When the inlet temperature drops below zero, a data parsing error occurs.

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	㰯��*T�x�*J��ɽ
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-,.0}],"exe_time":70}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-,.0}],"exe_time":70}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: No number after minus sign in JSON at position 73 (line 1 column 74)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (1) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":101}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�X#Sn�.t�j"�/7��
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":--.'}],"exe_time":120}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":--.'}],"exe_time":120}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: No number after minus sign in JSON at position 75 (line 1 column 76)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (0) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	㺡E��x�* ���F�
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":--.'}],"exe_time":60}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":--.'}],"exe_time":60}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: No number after minus sign in JSON at position 75 (line 1 column 76)
(Protocol) 192.168.88.124 <- Reached maximum number of retries, giving up get_properties - [{"siid":8,"piid":5}]
[DEBUG] (Protocol) 192.168.88.124 <- Error during send! (timeout) Call to device timed out | Request: {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
 ERROR  Call to device timed out

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�ж=��
                                                     t����[�5
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.)}],"exe_time":130}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.)}],"exe_time":130}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 75 (line 1 column 76)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (1) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":101}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	��`'��S���^�q~/
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.)}],"exe_time":30}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.)}],"exe_time":30}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 77 (line 1 column 78)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (0) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�و]ʗN����j^�k
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":120}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":120}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 77 (line 1 column 78)
(Protocol) 192.168.88.124 <- Reached maximum number of retries, giving up get_properties - [{"siid":8,"piid":5}]
[DEBUG] (Protocol) 192.168.88.124 <- Error during send! (timeout) Call to device timed out | Request: {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
 ERROR  Call to device timed out

Then I stopped the air flow and wait two minutes.
When the inlet temperature is above zero, there are no problems.

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�37�x䊺<�_�#� �
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":1.2}],"exe_time":170}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":1.2}],"exe_time":170}
 SUCCESS  Got property value -> 1.2

Please fix it.
Thanks!

[mrmaximas]

Start airflow again

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	��j>B�62�b|_��'
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.6}],"exe_time":130}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.6}],"exe_time":130}
 SUCCESS  Got property value -> 0.6

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
���Q0T� (Protocol) 192.168.88.124 <- !1p��	�ir���CU
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.5}],"exe_time":20}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.5}],"exe_time":20}
 SUCCESS  Got property value -> 0.5

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�!���� ad����y�
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.4}],"exe_time":150}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.4}],"exe_time":150}
 SUCCESS  Got property value -> 0.4

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	��5'H�!U�W��ߒ(��
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.3}],"exe_time":200}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.3}],"exe_time":200}
 SUCCESS  Got property value -> 0.3

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	��������Rª���RU
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.2}],"exe_time":150}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.2}],"exe_time":150}
 SUCCESS  Got property value -> 0.2

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�$�����M����RK�Q
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":130}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":130}
 SUCCESS  Got property value -> 0

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�(��情�\
                                                        �_|�
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":130}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":130}
 SUCCESS  Got property value -> 0

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�4�(�����\0�{r��
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":190}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":190}
 SUCCESS  Got property value -> 0

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�@�'sޘ�HbˠA&�$
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0./}],"exe_time":150}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0./}],"exe_time":150}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 75 (line 1 column 76)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (1) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":101}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�D����::�����l�@,
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0./}],"exe_time":70}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0./}],"exe_time":70}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 77 (line 1 column 78)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (0) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�InƢ��\�\i)z)
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0..}],"exe_time":170}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0..}],"exe_time":170}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 77 (line 1 column 78)
(Protocol) 192.168.88.124 <- Reached maximum number of retries, giving up get_properties - [{"siid":8,"piid":5}]
[DEBUG] (Protocol) 192.168.88.124 <- Error during send! (timeout) Call to device timed out | Request: {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
 ERROR  Call to device timed out

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�c���`����
                                                          r$1�d�F
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":150}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":150}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 75 (line 1 column 76)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (1) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":101}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�>���1�����|�S�
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":70}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":70}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 77 (line 1 column 78)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (0) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�m���'N��&@����
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":180}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-0.*}],"exe_time":180}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: Unterminated fractional number in JSON at position 77 (line 1 column 78)
(Protocol) 192.168.88.124 <- Reached maximum number of retries, giving up get_properties - [{"siid":8,"piid":5}]
[DEBUG] (Protocol) 192.168.88.124 <- Error during send! (timeout) Call to device timed out | Request: {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
 ERROR  Call to device timed out

Stop airflow again:

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�D*����40�,8�7��
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":80}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0}],"exe_time":80}
 SUCCESS  Got property value -> 0

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�w�ϕ�n�hG/����)�
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.5}],"exe_time":160}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":0.5}],"exe_time":160}
 SUCCESS  Got property value -> 0.5

% miot get-prop 192.168.88.124 8.5 --debug
 INFO  Connecting to device at  192.168.88.124
 INFO  Device found! Retrieving property value: 8.5
[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��	�� Q@1��Q����

[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":1.1}],"exe_time":80}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":1.1}],"exe_time":80}
 SUCCESS  Got property value -> 1.1

Etc...

[merdok]

Hello,
thanks for reporting. The thing is that the device sends back an invalid json...

Both
{"did":"xxxxx","siid":8,"piid":5,"code":0,"value":-,.0}
and
{"did":"xxxx","siid":8,"piid":5,"code":0,"value":-0.*}
are invalid json strings.
I am not quite sure why the device sends the data like this... This is either a bug in the firmware or the device send heavily customized data which is out of the json standard.

[mrmaximas]

@merdok Previously, during cold winters, this error did not occur, but I did not see temperatures below zero. Perhaps the device was recently updated and something broke.
How can I help to understand what exactly will restore the device? Do I need to intercept the raw data?

[mrmaximas]

@merdok The problem is that the device becomes uncontrollable via the plugin at inlet temperatures below 0, but I didn't have this problem last winter.
Could it be that this code part of the plugin uses an inappropriate data type that does not allow or wrong parse negative values?

[mrmaximas]

new variant of answer - value":-..

[DEBUG] (Protocol) Call 192.168.88.124: get_properties - [{"siid":8,"piid":5}] - {"retries":2,"timeout":5000}
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (2) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":1}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��     y��;.�^�&�j���E��
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":170}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":170}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: No number after minus sign in JSON at position 73 (line 1 column 74)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (1) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":101}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��     y�63!��<��g���s�
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":90}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":90}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: No number after minus sign in JSON at position 75 (line 1 column 76)
[DEBUG] (Protocol) Start handshake 192.168.88.124
[DEBUG] (Protocol) 192.168.88.124 <- (0) {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}
[DEBUG] (Protocol) 192.168.88.124 <- !1p��     y�6�bc�:=�4T�@v5
[DEBUG] (Protocol) 192.168.88.124 -> Data: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":180}
[DEBUG] (Protocol) 192.168.88.124 -> Message: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":180}
(Protocol) 192.168.88.124 -> Invalid JSON: SyntaxError: No number after minus sign in JSON at position 75 (line 1 column 76)
(Protocol) 192.168.88.124 <- Reached maximum number of retries, giving up get_properties - [{"siid":8,"piid":5}]
[DEBUG] (Protocol) 192.168.88.124 <- Error during send! (timeout) Call to device timed out | Request: {"method":"get_properties","params":[{"siid":8,"piid":5}],"id":201}

Is it possible to ignore such responses so as not to cause the device to freeze with repeated requests?

[merdok]

I mean the problem is that this is an invalid json which the devices sends. I cannot tell you why it is happening... Currently if the device sends such an invalid json, the whole property sync fails as I need to assume that some corrupted data was sent. If I simply ignore such errors then other issues might not be visible to users anymore.

It seems to me as the devices sends corrupted data. The new value is also an invalid json and I am not sure why the device would send that on purpose...

[mrmaximas]

@merdok How can I exclude the pulling of this property “custom-service:temperature” aka [{"siid":8,"piid":5}]?
this options don't help ((

"suppressAutoServiceCreation": [
                "temperature",
"showTemperature": false

[mrmaximas]

@merdok I deleted this lines from zhimi.airfresh.ua1.js

this.addPropertyByString('custom-serveice:temperature', '{"siid":8,"piid":5,"type":"urn:zhimi-spec:property:temperature:00000005:zhimi-ua1:1","description":"temperature","format":"float","access":["read","notify"],"unit":"celsius","valueRange":[-40,125,0.01]}');

and

temperatureProp() {
    return this.getProperty('custom-serveice:temperature');
  }

I will test.

[mrmaximas]

@merdok hi! It's works without 8.5 polling.
I think you're right, xiaomi broke something in the firmware, they started sending negative temperatures, clearly made a mistake somewhere in the data type.
This is some answer variants via cl:

Message: {"id":201,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..(}],"exe_time":110}
Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..*}],"exe_time":110}
Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..'}],"exe_time":170}
Message: {"id":1,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..}],"exe_time":40}
Message: {"id":101,"result":[{"did":"333830665","siid":8,"piid":5,"code":0,"value":-..+}],"exe_time":60}

I wonder if there is any way to report this issue to Xiaomi developers?

[merdok]

There is no way to exclude a property from being synced, currently it happens automatically when a property is needed.
The way as you did, directly in the js file, I would consider is correct way to do it for your scenario, although after an update you would have to re-apply that.

Yeah, these are clearly invalid values and not quite sure how that happened. I am not sure if it is possible to report the issue to the developers. Maybe in the Xiaomi home app?