How can I implement a custom characteristic which displays the value in range of -100 ... 0 ... 100 %?

RE: How can I implement a custom characteristic which displays the value in range of -100 ... 0 ... 100 %?

Thomas Lehwald — Wed, 14 Feb 2018 14:08:17 GMT

Hello Martin,

thanks for your assistence.

So, it seems, I must live with this circumstance until a custom app can handle the format representation correct.

Best Regards

Thomas

RE: How can I implement a custom characteristic which displays the value in range of -100 ... 0 ... 100 %?

MartinBL — Tue, 13 Feb 2018 15:45:13 GMT

It is up to the application to read the presentation format and parse the data accordingly. I don't know about LightBlue, but at least MCP does not. Neither does nRF Connect for mobile.

RE: How can I implement a custom characteristic which displays the value in range of -100 ... 0 ... 100 %?

Thomas Lehwald — Tue, 13 Feb 2018 14:16:00 GMT

Hello Martin,

yes, the tool I used is the MCP for Windows.

But I also tried out another tool on the iPhone called "LightBlue", with the same results. Only hex values are shown.

I guess, that this "tools from the stock" doesn't take care about the format representation, is this right?

Thanks

Thomas

RE: How can I implement a custom characteristic which displays the value in range of -100 ... 0 ... 100 %?

MartinBL — Tue, 13 Feb 2018 14:11:44 GMT

Is this Master Control Panel for Windows? It has been a while since I used it, but as far as I remember it doesn't show anything other than hex values.