Floating point rounding error in status

[tomkooij]

Describe the bug
Zero not zero:

WPU 5G: Status values that are 0 and "float" (divide by 100) can be some small number instead of 0.
The correspoding statusvalue is 0x0000 datatype 0x92 (2 byte, divide by 100).
0000 is cast to float and divided by 100 and some floating point rounding error occurs.
Solution: round / limit floats to 2 decimal places. Other datatype 0x92 values are rounded to 2 decimal places.
(See screenshots)

Also in MQTT:

"CV pressure (Bar)":2.26,"Compressor current (A)":3.62,"Current e-element (A)":0.000489009,

Expected behaviour
0 is displayed as 0 or 0.00

Screenshots

Device information

• Firmware version 2.4.4-beta6
• Hardware revision non-cve 2
• Type/model number Itho WPU 5G v37

This is a very minor issue. It's just my OCD. I might fix it sometime.

[tomkooij]

This is a "feature" of ArduinoJson...
https://arduinojson.org/v6/how-to/configure-the-serialization-of-floats/

Adding a round2() function as per the docs, would fix this.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.