In this page you will learn how to show/hide specific data from the display of the device. Even though the data is hidden from the display, you still receive it in the keepalive.
Show/Hide measured temperature
This command shows/hides the measured temperature on the display.
Byte index
Hex value β Meaning
0
40 β The command code.
1
00 β Hide the measured temperature;
01 β Show the measured temperature. Default state.
Example command: 0x4000 β Hide the measured temperature.
Check whether the measured temperature is shown/hidden.
Byte index
Sent request
Received response
0
41 β Command code
41 β Command code
1
00 - The measured temperature is hidden;
01 - The measured temperature is shown.
Example command: 0x41;
Example response: 0x4100 β The measured temperature is hidden.
Show/Hide measured humidity
This command shows/hides the measured humidity on the display.
Byte index
Hex value β Meaning
0
42 β The command code.
1
00 β Hide humidity;
01 β Show humidity. Default state.
Example command: 0x4200 β Hide the measured humidity
Check whether the measured temperature is shown/hidden.
Byte index
Sent request
Received response
0
43 β Command code
43 β Command code
1
00 - The measured humidity is hidden;
01 - The measured humidity is shown.
Example command: 0x43;
Example response: 0x4300 β The humidity is hidden.
Full display refresh
In order to protect the display of the device from the so-called "ghosting", where an image becomes permanently imprinted on the e-ink display, we have to refresh it fully every max. 24 hours. If you decide, you can lower the full-refresh period, which can remove some dim artefacts from the display's partial refreshes.
This command sets the full display refresh period.
Byte index
Hex value β Meaning
0
33 β The command code.
1
XX - Full display refresh in hours. Default value: 0x0C (12 hours)
Example downlink: 0x330A - set the full display refresh period to 10 hours.
This command gets the full display refresh period.
Byte index
Sent request
Received response
0
34 β Command code
34 β Command code
1
XX - Display refresh period in hours.
Example command: 0x34;
Example response: 0x340F - The full display refresh period is set to 15 hours.
